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Conserved domains on  [gi|1720420912|ref|XP_030098008|]
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glutamate receptor ionotropic, kainate 5 isoform X11 [Mus musculus]

Protein Classification

substrate-binding domain-containing protein; phosphate ABC transporter substrate-binding/OmpA family protein( domain architecture ID 10157301)

substrate-binding domain-containing protein similar to ionotropic glutamate receptor receptor (iGluR) subtypes, which contain the N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain that is structurally homologous to the periplasmic-binding fold type 1 (PBP1), and the C-terminal ligand-binding domain that belongs to the PBP2 fold| fused phosphate ABC transporter substrate-binding protein/OmpA family membrane protein contains an N-terminal domain similar to Bacillus subtilis phosphate-binding protein PstS, part of the ABC transporter complex PstSACB that is involved in phosphate import, and a C-terminal domain that may act as a porin with low permeability that allows slow penetration of small solutes

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
PBP1_iGluR_Kainate_KA1_2 cd06394
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 ...
23-424 0e+00

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMPA receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


:

Pssm-ID: 380616  Cd Length: 379  Bit Score: 747.12  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  23 SLRMAAILDDQTVCGRGERLALALAREQINGIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 102
Cdd:cd06394     1 SLRMAAILDDQTVCGRGERLALALAREQINSIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 103 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAECLLRLEELVRGFL 182
Cdd:cd06394    81 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDISLAVSRILKSFNYPSASLICAKAECLLRLEELVRQFL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 183 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAF 262
Cdd:cd06394   161 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLILK-----------------------KASELGMTSAF 217
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEASTYPGPALSAALMFDAVHVVVSAVR 342
Cdd:cd06394   218 YKYILTTMDFPLLHLDGIVDDQSNILGFSMFNTSHPFYLEFVRSLNMSWRENCDASTYPGPALSSALMFDAVHVVVSAVR 297
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 343 ELNRSQEIGVKPLACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 422
Cdd:cd06394   298 ELNRSQEIGVKPLSCTSAQIWQHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 377

                  ..
gi 1720420912 423 NA 424
Cdd:cd06394   378 NA 379
Periplasmic_Binding_Protein_Type_2 super family cl21456
Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent ...
437-636 8.97e-109

Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent the ligand-binding domains found in solute binding proteins that serve as initial receptors in the transport, signal transduction and channel gating. The PBP2 proteins share the same architecture as periplasmic binding proteins type 1 (PBP1), but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The origin of PBP module can be traced across the distant phyla, including eukaryotes, archebacteria, and prokaryotes. The majority of PBP2 proteins are involved in the uptake of a variety of soluble substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction. The substrate binding domain of the LysR transcriptional regulators and the oligopeptide-like transport systems also contain the type 2 periplasmic binding fold and thus they are significantly homologous to that of the PBP2; however, these two families are grouped into a separate hierarchy of the PBP2 superfamily due to the large number of protein sequences.


The actual alignment was detected with superfamily member cd13724:

Pssm-ID: 473866 [Multi-domain]  Cd Length: 333  Bit Score: 332.36  E-value: 8.97e-109
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqK 516
Cdd:cd13724     1 NTTLVVTTILENPYLMLKGNHQEMEGNDRYEGFCVDMLKELAEILRFNYKIRLVGDGVYGVPEANGTWTGMVGELIAR-K 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPAVWLFMLLAYLAVSCVLFLAARLSPYEW 596
Cdd:cd13724    80 ADLAVAGLTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPGVWLFMLLAYLAVSCVLFLVARLTPYEW 159
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|
gi 1720420912 597 YNPHPCLRARPHILENQYTLGNSLWFPVGGFMQQGSEIMP 636
Cdd:cd13724   160 YSPHPCAQGRCNLLVNQYSLGNSLWFPVGGFMQQGSTIAP 199
 
Name Accession Description Interval E-value
PBP1_iGluR_Kainate_KA1_2 cd06394
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 ...
23-424 0e+00

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMPA receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 380616  Cd Length: 379  Bit Score: 747.12  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  23 SLRMAAILDDQTVCGRGERLALALAREQINGIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 102
Cdd:cd06394     1 SLRMAAILDDQTVCGRGERLALALAREQINSIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 103 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAECLLRLEELVRGFL 182
Cdd:cd06394    81 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDISLAVSRILKSFNYPSASLICAKAECLLRLEELVRQFL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 183 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAF 262
Cdd:cd06394   161 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLILK-----------------------KASELGMTSAF 217
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEASTYPGPALSAALMFDAVHVVVSAVR 342
Cdd:cd06394   218 YKYILTTMDFPLLHLDGIVDDQSNILGFSMFNTSHPFYLEFVRSLNMSWRENCDASTYPGPALSSALMFDAVHVVVSAVR 297
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 343 ELNRSQEIGVKPLACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 422
Cdd:cd06394   298 ELNRSQEIGVKPLSCTSAQIWQHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 377

                  ..
gi 1720420912 423 NA 424
Cdd:cd06394   378 NA 379
PBP2_iGluR_kainate_KA1 cd13724
The ligand-binding domain of the kainate subtype KA1 of ionotropic glutamate receptors, a ...
437-636 8.97e-109

The ligand-binding domain of the kainate subtype KA1 of ionotropic glutamate receptors, a member of the type 2 periplasmic-binding fold protein superfamily; This group contains the ligand-binding domain of the KA1 subunit of kainate receptor. While this ligand-binding domain is structurally homologous to the periplasmic binding fold type II superfamily, the N_terminal domain of kainate receptors belongs to the periplasmic-binding fold type I. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMAP receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 270442 [Multi-domain]  Cd Length: 333  Bit Score: 332.36  E-value: 8.97e-109
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqK 516
Cdd:cd13724     1 NTTLVVTTILENPYLMLKGNHQEMEGNDRYEGFCVDMLKELAEILRFNYKIRLVGDGVYGVPEANGTWTGMVGELIAR-K 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPAVWLFMLLAYLAVSCVLFLAARLSPYEW 596
Cdd:cd13724    80 ADLAVAGLTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPGVWLFMLLAYLAVSCVLFLVARLTPYEW 159
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|
gi 1720420912 597 YNPHPCLRARPHILENQYTLGNSLWFPVGGFMQQGSEIMP 636
Cdd:cd13724   160 YSPHPCAQGRCNLLVNQYSLGNSLWFPVGGFMQQGSTIAP 199
Lig_chan-Glu_bd pfam10613
Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the ...
438-551 1.65e-51

Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine. It is found in association with Lig_chan, pfam00060.


Pssm-ID: 463166 [Multi-domain]  Cd Length: 111  Bit Score: 173.47  E-value: 1.65e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTILENPYVMRRPNfqaLSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAP-EPNGSWTGMVGELINRqK 516
Cdd:pfam10613   1 KTLIVTTILEPPFVMLKEN---LEGNDRYEGFCIDLLKELAEILGFKYEIRLVPDGKYGSLdPTTGEWNGMIGELIDG-K 76
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRV 551
Cdd:pfam10613  77 ADLAVAPLTITSEREKVVDFTKPFMTLGISILMKK 111
ANF_receptor pfam01094
Receptor family ligand binding region; This family includes extracellular ligand binding ...
40-402 7.38e-47

Receptor family ligand binding region; This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.


Pssm-ID: 460062 [Multi-domain]  Cd Length: 347  Bit Score: 169.10  E-value: 7.38e-47
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  40 ERLALALAREQINGIIEVPAKARVEVDIfelqRDSQYETTDTM--CQILPKG-VVSVLGPSSSPASAsTVSHICGEKEIP 116
Cdd:pfam01094   2 VLLAVRLAVEDINADPGLLPGTKLEYII----LDTCCDPSLALaaALDLLKGeVVAIIGPSCSSVAS-AVASLANEWKVP 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 117 HIKVG---PEETPRLQYLRFasVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAE-CLLRLEELV-----RGFLISKET 187
Cdd:pfam01094  77 LISYGstsPALSDLNRYPTF--LRTTPSDTSQADAIVDILKHFGWKRVALIYSDDDyGESGLQALEdalreRGIRVAYKA 154
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 188 LSVRMLDDSRDPTPLLKEIRDdKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAFYKYIL 267
Cdd:pfam01094 155 VIPPAQDDDEIARKLLKEVKS-RARVIVVCCSSETARRLLK-----------------------AARELGMMGEGYVWIA 210
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 268 T---TMDFPILHLDGIvEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEaSTYPGPALSAALMFDAVHVVVSAVREL 344
Cdd:pfam01094 211 TdglTTSLVILNPSTL-EAAGGVLGFRLHPPDSPEFSEFFWEKLSDEKELYE-NLGGLPVSYGALAYDAVYLLAHALHNL 288
                         330       340       350       360       370
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720420912 345 NRSQEIGVkplACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILE 402
Cdd:pfam01094 289 LRDDKPGR---ACGALGPWNGGQKLLRYLKNVNFTGLTGNVQFDENGDRINPDYDILN 343
Lig_chan-Glu_bd smart00918
Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the ...
449-512 4.46e-20

Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine. It is found in association with Lig_chan.


Pssm-ID: 214911 [Multi-domain]  Cd Length: 62  Bit Score: 84.22  E-value: 4.46e-20
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1720420912  449 PYVMRRPNfqALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELI 512
Cdd:smart00918   1 PYVMLKES--PDGGNDRFEGYCIDLLKELAKKLGFTYEIILVPDGKYGARLPNGSWNGMVGELV 62
HisJ COG0834
ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino ...
455-550 8.25e-11

ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino acid transport and metabolism, Signal transduction mechanisms];


Pssm-ID: 440596 [Multi-domain]  Cd Length: 223  Bit Score: 62.30  E-value: 8.25e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAELLrfryrlrlvedGLygAPEP-NGSWTGMVGELINRqKADLAVAAFTITAEREKV 533
Cdd:COG0834    10 PPFSFRDEDGKLVGFDVDLARAIAKRL-----------GL--KVEFvPVPWDRLIPALQSG-KVDLIIAGMTITPEREKQ 75
                          90
                  ....*....|....*..
gi 1720420912 534 IDFSKPFMTLGISILYR 550
Cdd:COG0834    76 VDFSDPYYTSGQVLLVR 92
PRK11260 PRK11260
cystine ABC transporter substrate-binding protein;
431-550 1.97e-04

cystine ABC transporter substrate-binding protein;


Pssm-ID: 183061 [Multi-domain]  Cd Length: 266  Bit Score: 43.56  E-value: 1.97e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 431 LSQTLANKTLVVTtiLENPYvmrrP--NFQALSGneRFEGFCVDMLRELAEllrfryrlrlvEDGLYGAPEPNgSWTGMV 508
Cdd:PRK11260   34 LNKVKERGTLLVG--LEGTY----PpfSFQGEDG--KLTGFEVEFAEALAK-----------HLGVKASLKPT-KWDGML 93
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|..
gi 1720420912 509 GELiNRQKADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:PRK11260   94 ASL-DSKRIDVVINQVTISDERKKKYDFSTPYTVSGIQALVK 134
 
Name Accession Description Interval E-value
PBP1_iGluR_Kainate_KA1_2 cd06394
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 ...
23-424 0e+00

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the KA1 and KA2 subunits of Kainate receptor. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMPA receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 380616  Cd Length: 379  Bit Score: 747.12  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  23 SLRMAAILDDQTVCGRGERLALALAREQINGIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 102
Cdd:cd06394     1 SLRMAAILDDQTVCGRGERLALALAREQINSIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPAS 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 103 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAECLLRLEELVRGFL 182
Cdd:cd06394    81 ASTVSHICGEKEIPHIKVGPEETPRLQYLRFASVSLYPSNEDISLAVSRILKSFNYPSASLICAKAECLLRLEELVRQFL 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 183 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAF 262
Cdd:cd06394   161 ISKETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLILK-----------------------KASELGMTSAF 217
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEASTYPGPALSAALMFDAVHVVVSAVR 342
Cdd:cd06394   218 YKYILTTMDFPLLHLDGIVDDQSNILGFSMFNTSHPFYLEFVRSLNMSWRENCDASTYPGPALSSALMFDAVHVVVSAVR 297
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 343 ELNRSQEIGVKPLACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 422
Cdd:cd06394   298 ELNRSQEIGVKPLSCTSAQIWQHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTLAM 377

                  ..
gi 1720420912 423 NA 424
Cdd:cd06394   378 NA 379
PBP1_iGluR_non_NMDA-like cd06368
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the non-NMDA ...
25-424 5.03e-111

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the non-NMDA (N-methyl-D-aspartate) subtypes of ionotropic glutamate receptors; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the non-NMDA (N-methyl-D-asparate) subtypes of ionotropic glutamate receptors. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. Glutamate mediates the majority of excitatory synaptic transmission in the central nervous system via two broad classes of ionotropic receptors, characterized by their response to glutamate agonists: N-methyl-D-aspartate (NMDA) and non-NMDA receptors. NMDA receptors have intrinsically slow kinetics, are highly permeable to Ca2+, and are blocked by extracellular Mg2+ in a voltage-dependent manner. Non-NMDA receptors have faster kinetics, are most often only weakly permeable to Ca2+, and are not blocked by extracellular Mg2+. While non-NMDA receptors typically mediate excitatory synaptic responses at resting membrane potentials, NMDA receptors contribute several forms of synaptic plasticity and are thought to play an important role in the development of synaptic pathways. Non-NMDA receptors include alpha-amino-3-hydroxy-5-methyl-4-isoxazole proprionate (AMPA) and kainate receptors.


Pssm-ID: 380591 [Multi-domain]  Cd Length: 339  Bit Score: 338.19  E-value: 5.03e-111
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  25 RMAAILDDqtVCGRGERLALALAREQINGIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGpSSSPASAS 104
Cdd:cd06368     1 KIGAIFNE--VNDAHERAAFRYAVERLNTNIVKLAYFRITYSIEAIDSNSHFDATDKACDLLEKGVVAIVG-PSSSDSNN 77
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 105 TVSHICGEKEIPHIKVGPEETPRLQylrFASVSLYPSNEdVSLAVSRILKSFNYPSASLICAKAECLLRLEELVRGFLIS 184
Cdd:cd06368    78 ALQSICDALDVPHITVHDDPRLSKS---QYSLSLYPRNQ-LSQAVSDLLKYWRWKRFVLVYDDDDRLRRLQELLEAARFS 153
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 185 KETLSVRMLDDS---RDPTPLLKEIRDDKVSTIIIDANASISHLVLrlslnlssplgfprslplglscvLQASELGMTSA 261
Cdd:cd06368   154 KRFVSVRKVDLDyktLDETPLLKRKDCSLFSRILIDLSPEKAYTFL-----------------------LQALEMGMTIE 210
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 262 FYKYILTTMDFPIL-HLDGIVEDSSNILGFSMFNTsHPFYPEFVRSLNMSWRENCE----ASTYPGPALSAALMFDAVHV 336
Cdd:cd06368   211 LYHYFLTTMDLSLLlDLELFRYNHANITGFQLVDN-NSMYKEDINRLAFNWSRFRQhikiESNLRGPPYEAALMFDAVLL 289
                         330       340       350       360       370       380       390       400
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 337 VVSAVRElnrsqeigvkplactsaniwphgtslmnylrmveydglTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYS 416
Cdd:cd06368   290 LADAFRR--------------------------------------TGDLRFNGTGLRSNFTLRILELGYGGLRKIGFWDS 331

                  ....*...
gi 1720420912 417 NRTLAMNA 424
Cdd:cd06368   332 NTRLAMNL 339
PBP2_iGluR_kainate_KA1 cd13724
The ligand-binding domain of the kainate subtype KA1 of ionotropic glutamate receptors, a ...
437-636 8.97e-109

The ligand-binding domain of the kainate subtype KA1 of ionotropic glutamate receptors, a member of the type 2 periplasmic-binding fold protein superfamily; This group contains the ligand-binding domain of the KA1 subunit of kainate receptor. While this ligand-binding domain is structurally homologous to the periplasmic binding fold type II superfamily, the N_terminal domain of kainate receptors belongs to the periplasmic-binding fold type I. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMAP receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 270442 [Multi-domain]  Cd Length: 333  Bit Score: 332.36  E-value: 8.97e-109
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqK 516
Cdd:cd13724     1 NTTLVVTTILENPYLMLKGNHQEMEGNDRYEGFCVDMLKELAEILRFNYKIRLVGDGVYGVPEANGTWTGMVGELIAR-K 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPAVWLFMLLAYLAVSCVLFLAARLSPYEW 596
Cdd:cd13724    80 ADLAVAGLTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPGVWLFMLLAYLAVSCVLFLVARLTPYEW 159
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|
gi 1720420912 597 YNPHPCLRARPHILENQYTLGNSLWFPVGGFMQQGSEIMP 636
Cdd:cd13724   160 YSPHPCAQGRCNLLVNQYSLGNSLWFPVGGFMQQGSTIAP 199
PBP2_iGluR_Kainate_GluR7 cd13723
GluR7 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group ...
437-647 1.59e-82

GluR7 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group contains glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270441 [Multi-domain]  Cd Length: 369  Bit Score: 265.40  E-value: 1.59e-82
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINrQK 516
Cdd:cd13723     1 NRSLIVTTVLEEPFVMFRKSDRTLYGNDRFEGYCIDLLKELAHILGFSYEIRLVEDGKYGAQDDKGQWNGMVKELID-HK 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLDPFSPAVWLFMLLAYLAVSCVLFLAARLSPYEW 596
Cdd:cd13723    80 ADLAVAPLTITHVREKAIDFSKPFMTLGVSILYRKPNGTNPSVFSFLNPLSPDIWMYVLLAYLGVSCVLFVIARFSPYEW 159
                         170       180       190       200       210
                  ....*....|....*....|....*....|....*....|....*....|.
gi 1720420912 597 YNPHPClRARPHILENQYTLGNSLWFPVGGFMQQGSEIMPRALSTRCVSGV 647
Cdd:cd13723   160 YDAHPC-NPGSEVVENNFTLLNSFWFGMGSLMQQGSELMPKALSTRIIGGI 209
PBP2_iGluR_kainate_KA2 cd13725
The ligand-binding domain of the kainate subtype KA2 of ionotropic glutamate receptors, a ...
437-553 5.26e-63

The ligand-binding domain of the kainate subtype KA2 of ionotropic glutamate receptors, a member of the type 2 periplasmic-binding fold protein superfamily; This group contains the ligand-binding domain of the KA2 subunit of kainate receptor. While this ligand-binding domain is structurally homologous to the periplasmic binding fold type II superfamily, the N_terminal domain of kainate receptors belongs to the periplasmic-binding fold type I. There are five types of kainate receptors, GluR5, GluR6, GluR7, KA1, and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMAP receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 270443 [Multi-domain]  Cd Length: 250  Bit Score: 209.56  E-value: 5.26e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqK 516
Cdd:cd13725     1 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINR-K 79
                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHM 553
Cdd:cd13725    80 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHM 116
PBP2_iGluR_Kainate cd13714
Kainate receptor of the type 2 periplasmic-binding fold superfamily; This group contains ...
437-553 4.81e-56

Kainate receptor of the type 2 periplasmic-binding fold superfamily; This group contains glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270432 [Multi-domain]  Cd Length: 251  Bit Score: 191.21  E-value: 4.81e-56
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEP-NGSWTGMVGELINRq 515
Cdd:cd13714     1 NKTLIVTTILEEPYVMLKESAKPLTGNDRFEGFCIDLLKELAKILGFNYTIRLVPDGKYGSYDPeTGEWNGMVRELIDG- 79
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHM 553
Cdd:cd13714    80 RADLAVADLTITYERESVVDFTKPFMNLGISILYRKPT 117
PBP1_iGluR_Kainate cd06382
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the kainate ...
25-420 7.97e-56

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the kainate receptors; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the kainate receptors, non-NMDA ionotropic receptors which respond to the neurotransmitter glutamate. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. Kainate receptors have five subunits, GluR5, GluR6, GluR7, KA1 and KA2, which are structurally similar to AMPA and NMDA subunits of ionotropic glutamate receptors. KA1 and KA2 subunits can only form functional receptors with one of the GluR5-7 subunits. Moreover, GluR5-7 can also form functional homomeric receptor channels activated by kainate and glutamate when expressed in heterologous systems. Kainate receptors are involved in excitatory neurotransmission by activating postsynaptic receptors and in inhibitory neurotransmission by modulating release of the inhibitory neurotransmitter GABA through a presynaptic mechanism. Kainate receptors are closely related to AMAP receptors. In contrast of AMPA receptors, kainate receptors play only a minor role in signaling at synapses and their function is not well defined.


Pssm-ID: 380605  Cd Length: 335  Bit Score: 193.21  E-value: 7.97e-56
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  25 RMAAILDDQtvcGRGERLALALAREQINgIIEVPAKARVEVDIFELQRDSQYETTDTMCQILPKGVVSVLGPSSSPASAs 104
Cdd:cd06382     1 RIGGIFDED---DEDLEIAFKYAVDRIN-RERTLPNTKLVPDIERVPRDDSFEASKKVCELLEEGVAAIFGPSSPSSSD- 75
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 105 TVSHICGEKEIPHIKVGPEETPRLQylRFASVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAECLLRLEELVRGFLIS 184
Cdd:cd06382    76 IVQSICDALEIPHIETRWDPKESNR--DTFTINLYPDPDALSKAYADLVKSLNWKSFTILYEDDEGLIRLQELLKLPKPK 153
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 185 KETLSVRMLDDSRDPTPLLKEIRDDKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAFYK 264
Cdd:cd06382   154 DIPITVRQLDPGDDYRPVLKEIKKSGETRIILDCSPDRLVDVLK-----------------------QAQQVGMLTEYYH 210
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 265 YILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEASTYPGP-ALSAALMFDAVHVVVSAVRe 343
Cdd:cd06382   211 YILTNLDLHTLDLEPFKYSGANITGFRLVDPENPEVKNVLKDWSKREKEGFNKDIGPGQiTTETALMYDAVNLFANALK- 289
                         330       340       350       360       370       380       390
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1720420912 344 lnrsqeigvkplactsaniwphgtslmnylrmveyDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGVWYSNRTL 420
Cdd:cd06382   290 -----------------------------------EGLTGPIKFDEEGQRTDFKLDILELTEGGLVKVGTWNPTDGL 331
Lig_chan-Glu_bd pfam10613
Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the ...
438-551 1.65e-51

Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine. It is found in association with Lig_chan, pfam00060.


Pssm-ID: 463166 [Multi-domain]  Cd Length: 111  Bit Score: 173.47  E-value: 1.65e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTILENPYVMRRPNfqaLSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAP-EPNGSWTGMVGELINRqK 516
Cdd:pfam10613   1 KTLIVTTILEPPFVMLKEN---LEGNDRYEGFCIDLLKELAEILGFKYEIRLVPDGKYGSLdPTTGEWNGMIGELIDG-K 76
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRV 551
Cdd:pfam10613  77 ADLAVAPLTITSEREKVVDFTKPFMTLGISILMKK 111
PBP2_iGluR_AMPA cd13715
The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic ...
437-557 7.72e-48

The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtypes of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This family represents the ligand-binding domain of the AMPA receptor subunits, a member of non-NMDA (N-methyl-D-aspartate) type iGluRs which are ligand-gated ion channels that mediate excitatory synaptic transmission in the central nervous system. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of AMPA receptors belongs to the periplasmic-binding fold type I. They consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current.


Pssm-ID: 270433 [Multi-domain]  Cd Length: 261  Bit Score: 169.07  E-value: 7.72e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNF--QALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEP-NGSWTGMVGELIn 513
Cdd:cd13715     1 NRTYIVTTILEEPYVMMKKNHegEPLEGNERYEGYCVDLADEIAKHLGIKYELRIVKDGKYGARDAdTGIWNGMVGELV- 79
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....
gi 1720420912 514 RQKADLAVAAFTITAEREKVIDFSKPFMTLGISIlyrvhMGRKP 557
Cdd:cd13715    80 RGEADIAIAPLTITLVRERVIDFSKPFMSLGISI-----MIKKP 118
PBP2_iGluR_non_NMDA_like cd13685
The ligand-binding domain of non-NMDA (N-methyl-D-aspartate) type ionotropic glutamate ...
437-551 9.10e-48

The ligand-binding domain of non-NMDA (N-methyl-D-aspartate) type ionotropic glutamate receptors, a member of the type 2 periplasmic-binding fold protein superfamily; This subfamily represents the ligand-binding domain of non-NMDA (N-methyl-D-aspartate) type ionotropic glutamate receptors including AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) receptors (GluR1-4), kainate receptors (GluR5-7 and KA1/2), and orphan receptors delta 1/2. iGluRs form tetrameric ligand-gated ion channels, which are concentrated at postsynaptic sites in excitatory synapses where they fulfill a variety of different functions. While this ligand-binding domain of iGluRs is structurally homologous to the periplasmic binding fold type II superfamily, the N-terminal leucine/isoleucine/valine#binding protein (LIVBP)-like domain belongs to the periplasmic-binding fold type I.


Pssm-ID: 270403 [Multi-domain]  Cd Length: 252  Bit Score: 168.52  E-value: 9.10e-48
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNfqALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqK 516
Cdd:cd13685     1 NKTLRVTTILEPPFVMKKRD--SLSGNPRFEGYCIDLLEELAKILGFDYEIYLVPDGKYGSRDENGNWNGMIGELVRG-E 77
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYRV 551
Cdd:cd13685    78 ADIAVAPLTITAEREEVVDFTKPFMDTGISILMRK 112
ANF_receptor pfam01094
Receptor family ligand binding region; This family includes extracellular ligand binding ...
40-402 7.38e-47

Receptor family ligand binding region; This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.


Pssm-ID: 460062 [Multi-domain]  Cd Length: 347  Bit Score: 169.10  E-value: 7.38e-47
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  40 ERLALALAREQINGIIEVPAKARVEVDIfelqRDSQYETTDTM--CQILPKG-VVSVLGPSSSPASAsTVSHICGEKEIP 116
Cdd:pfam01094   2 VLLAVRLAVEDINADPGLLPGTKLEYII----LDTCCDPSLALaaALDLLKGeVVAIIGPSCSSVAS-AVASLANEWKVP 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 117 HIKVG---PEETPRLQYLRFasVSLYPSNEDVSLAVSRILKSFNYPSASLICAKAE-CLLRLEELV-----RGFLISKET 187
Cdd:pfam01094  77 LISYGstsPALSDLNRYPTF--LRTTPSDTSQADAIVDILKHFGWKRVALIYSDDDyGESGLQALEdalreRGIRVAYKA 154
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 188 LSVRMLDDSRDPTPLLKEIRDdKVSTIIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAFYKYIL 267
Cdd:pfam01094 155 VIPPAQDDDEIARKLLKEVKS-RARVIVVCCSSETARRLLK-----------------------AARELGMMGEGYVWIA 210
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 268 T---TMDFPILHLDGIvEDSSNILGFSMFNTSHPFYPEFVRSLNMSWRENCEaSTYPGPALSAALMFDAVHVVVSAVREL 344
Cdd:pfam01094 211 TdglTTSLVILNPSTL-EAAGGVLGFRLHPPDSPEFSEFFWEKLSDEKELYE-NLGGLPVSYGALAYDAVYLLAHALHNL 288
                         330       340       350       360       370
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720420912 345 NRSQEIGVkplACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILE 402
Cdd:pfam01094 289 LRDDKPGR---ACGALGPWNGGQKLLRYLKNVNFTGLTGNVQFDENGDRINPDYDILN 343
PBP2_iGluR_Kainate_GluR5 cd13722
GluR5 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group ...
437-550 1.53e-38

GluR5 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group contains glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270440 [Multi-domain]  Cd Length: 250  Bit Score: 143.27  E-value: 1.53e-38
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINrQK 516
Cdd:cd13722     1 NRTLIVTTILEEPYVMYRKSDKPLYGNDRFEGYCLDLLKELSNILGFLYDVKLVPDGKYGAQNDKGEWNGMVKELID-HR 79
                          90       100       110
                  ....*....|....*....|....*....|....
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13722    80 ADLAVAPLTITYVREKVIDFSKPFMTLGISILYR 113
PBP2_iGluR_Kainate_GluR6 cd13721
GluR6 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group ...
437-550 3.23e-38

GluR6 subtype of kainate receptor, type 2 periplasmic-binding fold superfamily; This group contains glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270439 [Multi-domain]  Cd Length: 251  Bit Score: 142.47  E-value: 3.23e-38
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGA-PEPNGSWTGMVGELINrQ 515
Cdd:cd13721     1 NRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTILGFTYEIRLVEDGKYGAqDDVNGQWNGMVRELID-H 79
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13721    80 KADLAVAPLAITYVREKVIDFSKPFMTLGISILYR 114
PBP2_iGluR_AMPA_GluR1 cd13729
The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic ...
437-557 1.98e-35

The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtype GluR1 of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the AMPA receptor subunit GluR1, a member of non-NMDA (N-methyl-D-aspartate) type iGluRs which are ligand-gated ion channels that mediate excitatory synaptic transmission in the central nervous system. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of AMPA receptors belongs to the periplasmic-binding fold type I. The AMPA receptors are the most commonly found receptor in the nervous system and sensitive to the artificial glutamate analog, AMPA. They consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current.


Pssm-ID: 270447 [Multi-domain]  Cd Length: 260  Bit Score: 134.77  E-value: 1.98e-35
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNG-SWTGMVGELInRQ 515
Cdd:cd13729     1 NRTYIVTTILESPYVMLKKNHEQFEGNDRYEGYCVELAAEIAKHVGYSYKLEIVSDGKYGARDPETkMWNGMVGELV-YG 79
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|..
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISIlyrvhMGRKP 557
Cdd:cd13729    80 KADVAVAPLTITLVREEVIDFSKPFMSLGISI-----MIKKP 116
PBP2_iGluR_ligand_binding cd00998
The ligand-binding domain of ionotropic glutamate receptor family, a member of the periplasmic ...
438-552 1.08e-34

The ligand-binding domain of ionotropic glutamate receptor family, a member of the periplasmic binding protein type II superfamily; This subfamily represents the ligand binding of ionotropic glutamate receptors. iGluRs are heterotetrameric ion channels that comprises of three functionally distinct subtypes based on their pharmacology and structural similarities: AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid), NMDA (N-methyl-D-aspartate), and kainate receptors. All three types of channels are also activated by the physiological neurotransmitter, glutamate. iGluRs are concentrated at postsynaptic sites, where they exert a variety of different functions. While this ligand-binding domain of iGluRs is structurally homologous to the periplasmic binding fold type II superfamily, the N-terminal leucine/isoleucine/valine-binding protein (LIVBP)-like domain belongs to the periplasmic-binding fold type I.


Pssm-ID: 270219 [Multi-domain]  Cd Length: 243  Bit Score: 132.11  E-value: 1.08e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEpNGSWTGMVGELInRQKA 517
Cdd:cd00998     1 KTLKVVVPLEPPFVMFVTGSNAVTGNGRFEGYCIDLLKELSQSLGFTYEYYLVPDGKFGAPV-NGSWNGMVGEVV-RGEA 78
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 518 DLAVAAFTITAEREKVIDFSKPFMTLGISILYRVH 552
Cdd:cd00998    79 DLAVGPITITSERSVVIDFTQPFMTSGIGIMIPIR 113
PBP2_iGluR_AMPA_GluR4 cd13727
The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic ...
437-550 2.26e-34

The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtype GluR4 of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the AMPA receptor subunit GluR4, a member of non-NMDA (N-methyl-D-aspartate) type iGluRs which are ligand-gated ion channels that mediate excitatory synaptic transmission in the central nervous system. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of AMPA receptors belongs to the periplasmic-binding fold type I.The AMPA receptors are the most commonly found receptor in the nervous system and sensitive to the artificial glutamate analog, AMPA. They consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current.


Pssm-ID: 270445 [Multi-domain]  Cd Length: 259  Bit Score: 131.69  E-value: 2.26e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGS-WTGMVGELInRQ 515
Cdd:cd13727     1 NRTVVVTTIMESPYVMYKKNHEMFEGNDKFEGYCVDLASEIAKHIGIKYKIAIVPDGKYGARDPETKiWNGMVGELV-YG 79
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13727    80 KAEIAVAPLTITLVREEVIDFSKPFMSLGISIMIK 114
PBP2_iGluR_AMPA_GluR3 cd13728
The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic ...
437-550 9.22e-34

The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtype GluR3 of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the AMPA receptor subunit GluR3, a member of non-NMDA (N-methyl-D-aspartate) type iGluRs which are ligand-gated ion channels that mediate excitatory synaptic transmission in the central nervous system. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of AMPA receptors belongs to the periplasmic-binding fold type I. The AMPA receptors are the most commonly found receptor in the nervous system and sensitive to the artificial glutamate analog, AMPA. They consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current


Pssm-ID: 270446 [Multi-domain]  Cd Length: 259  Bit Score: 129.81  E-value: 9.22e-34
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEP-NGSWTGMVGELInRQ 515
Cdd:cd13728     1 NRTIVVTTILESPYVMYKKNHEQLEGNERYEGYCVDLAYEIAKHVRIKYKLSIVGDGKYGARDPeTKIWNGMVGELV-YG 79
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13728    80 RADIAVAPLTITLVREEVIDFSKPFMSLGISIMIK 114
PBP1_iGluR_AMPA cd06380
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the AMPA receptor; ...
62-414 2.39e-33

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the AMPA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor, a member of the glutamate-receptor ion channels (iGluRs). AMPA receptors are the major mediators of excitatory synaptic transmission in the central nervous system. While this N-terminal domain belongs to the periplasmic-binding fold type 1 superfamily, the glutamate-binding domain of the iGluR is structurally homologous to the periplasmic-binding fold type 2. The LIVBP-like domain of iGluRs is thought to play a role in the initial assembly of iGluR subunits, but it is not well understood how this domain is arranged and functions in intact iGluR. AMPA receptors consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important roles in mediating the rapid excitatory synaptic current.


Pssm-ID: 380603 [Multi-domain]  Cd Length: 390  Bit Score: 132.02  E-value: 2.39e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  62 RVEVDIfeLQRDSqYETTDTMCQILPKGVVSVLGPSSSPASAsTVSHICGEKEIPHIKVGPEETPRLQYLRFAsVSLYPS 141
Cdd:cd06380    38 TERIDI--TNADS-FSVSRAICSQLSRGVFAIFGSSDASSLN-TIQSYSDTFHMPYITPSFPKNEPSDSNPFE-LSLRPS 112
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 142 NED--VSLAVSRILKSFNYPSASlicakAECLLRLEELVRgFLISKETLSV--RMLDDSRDPTPLLKEIRD----DKVST 213
Cdd:cd06380   113 YIEaiVDLIRHYGWKKVVYLYDS-----DEGLLRLQQLYD-YLKEKSNISVrvRRVRNVNDAYEFLRTLREldreKEDKR 186
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 214 IIIDANASISHLVLRlslnlssplgfprslplglscvlQASELGMTSAFYKYILTTMDFPILHLDGIVEDSSNILGFSMF 293
Cdd:cd06380   187 IVLDLSSERYQKILE-----------------------QIVEDGMNRRNYHYLLANLDFLDLDLERFLHGGVNITGFQLV 243
                         250       260       270       280       290       300       310       320
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 294 NTSHPFYpefvRSLNMSWRENCEAsTYPGPALS-----AALMFDAVHVVVSAVREL---NRSQEI----------GVKPL 355
Cdd:cd06380   244 DTNNKTV----KDFLQRWKKLDPR-EYPGAGTDtipyeAALAVDAVLVIAEAFQSLlrqNDDIFRftfhgelynnGSKGI 318
                         330       340       350       360       370       380
                  ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1720420912 356 ACTSANIWP--HGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILE-KSRQGHREIGVW 414
Cdd:cd06380   319 DCDPNPPLPweHGKAIMKALKKVRFEGLTGNVQFDDFGQRKNYTLDVIElTSNRGLRKIGTW 380
PBP2_iGluR_AMPA_GluR2 cd13726
The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic ...
437-550 4.16e-33

The ligand-binding domain of the AMPA (alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionic acid) subtype GluR2 of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the AMPA receptor subunit GluR2, a member of non-NMDA (N-methyl-D-aspartate) type iGluRs which are ligand-gated ion channels that mediate excitatory synaptic transmission in the central nervous system. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of AMPA receptors belongs to the periplasmic-binding fold type I. The AMPA receptors are the most commonly found receptor in the nervous system and sensitive to the artificial glutamate analog, AMPA. They consist of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current.


Pssm-ID: 270444 [Multi-domain]  Cd Length: 259  Bit Score: 128.22  E-value: 4.16e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 437 NKTLVVTTILENPYVMRRPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGS-WTGMVGELInRQ 515
Cdd:cd13726     1 NKTVVVTTILESPYVMMKKNHEMLEGNERYEGYCVDLAAEIAKHCGFKYKLTIVGDGKYGARDADTKiWNGMVGELV-YG 79
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13726    80 KADIAIAPLTITLVREEVIDFSKPFMSLGISIMIK 114
PBP2_iGluR_putative cd13717
The ligand-binding domain of putative ionotropic glutamate receptors, a member of the type 2 ...
442-644 1.05e-31

The ligand-binding domain of putative ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBPII superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270435 [Multi-domain]  Cd Length: 360  Bit Score: 126.64  E-value: 1.05e-31
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 442 VTTILENPYVMRRPNfqalsGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqKADLAV 521
Cdd:cd13717     6 IGTVESPPFVYRDRD-----GSPIWEGYCIDLIEEISEILNFDYEIVEPEDGKFGTMDENGEWNGLIGDLVRK-EADIAL 79
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 522 AAFTITAEREKVIDFSKPFMTL-GISIlyrvhMGRKP----GYFSFLDPFSPAVWlfmllaylavscvlflaarlspyew 596
Cdd:cd13717    80 AALSVMAEREEVVDFTVPYYDLvGITI-----LMKKPerptSLFKFLTVLELEVW------------------------- 129
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|....*...
gi 1720420912 597 ynphpclrarphileNQYTLGNSLWFPVGGFMQQGSEIMPRALSTRCV 644
Cdd:cd13717   130 ---------------REFTLKESLWFCLTSLTPQGGGEAPKNLSGRLL 162
PBP2_iGluR_delta_1 cd13730
The ligand-binding domain of an orphan ionotropic glutamate receptor delta-1, a member of the ...
439-550 1.95e-27

The ligand-binding domain of an orphan ionotropic glutamate receptor delta-1, a member of the type 2 periplasmic-binding fold protein superfamily; This group contains the ligand-binding domain of the delta1 receptor of an orphan glutamate receptor family. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of delta receptors belongs to the periplasmic-binding fold type I. Although the delta receptors are a member of the ionotropic glutamate receptor family, they cannot be activated by AMPA, kainate, NMDA, glutamate, or any other ligands. Phylogenetical analysis shows that both GluRdelta1 and GluRdelta2 are more homologous to non-NMDA receptors. GluRdelta2 was shown to function as an AMPA-like receptor by mutation analysis. Moreover, targeted disruption of GluRdelta2 gene caused motor coordination impairment, Purkinje cell maturation, and long-term depression of synaptic transmission. It has been suggested that GluRdelta2 is the receptor for cerebellin 1, a glycoprotein of the Clq, and the tumor necrosis factor family which is secreted from cerebellar granule cells. Furthermore, recent studies have shown that the orphan GluRdelta1 plays an essential role in high-frequency hearing and ionic homeostasis in the basal cochlea and that the locus encoding GluRdelta1 may be involved in congenial or acquired high-frequency hearing loss in humans.


Pssm-ID: 270448 [Multi-domain]  Cd Length: 257  Bit Score: 111.59  E-value: 1.95e-27
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 439 TLVVTTILENPYVMRRPNFqaLSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqKAD 518
Cdd:cd13730     3 TLKVVTVLEEPFVMVAENI--LGQPKRYKGFSIDVLDALAKALGFKYEIYQAPDGKYGHQLHNTSWNGMIGELISK-RAD 79
                          90       100       110
                  ....*....|....*....|....*....|..
gi 1720420912 519 LAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13730    80 LAISAITITPERESVVDFSKRYMDYSVGILIK 111
PBP2_iGluR_NMDA cd13687
The ligand-binding domain of the NMDA (N-methyl-D-aspartate) subtype of ionotropic glutamate ...
440-550 6.61e-26

The ligand-binding domain of the NMDA (N-methyl-D-aspartate) subtype of ionotropic glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; The ligand-binding domain of the ionotropic NMDA subtype is structurally homologous to the periplasmic-binding fold type II superfamily, while the N-terminal domain belongs to the periplasmic-binding fold type I. The function of the NMDA subtype receptor serves critical functions in neuronal development, functioning, and degeneration in the mammalian central nervous system. The functional NMDA receptor is a heterotetramer comprising two NR1 and two NR2 (A, B, C, and D) or NR3 (A and B) subunits. The receptor controls a cation channel that is highly permeable to monovalent ions and calcium and exhibits voltage-dependent inhibition by magnesium. Dual agonists, glutamate and glycine, are required for efficient activation of the NMDA receptor. Among NMDA receptor subtypes, the NR2B subunit containing receptors appear particularly important for pain perception; thus NR2B-selective antagonists may be useful in the treatment of chronic pain.


Pssm-ID: 270405 [Multi-domain]  Cd Length: 239  Bit Score: 106.57  E-value: 6.61e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 440 LVVTTILENPYVMRRPNfqalsgnerfEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEP--NGSWTGMVGELINRqKA 517
Cdd:cd13687     4 LKVVTLEEAPFVYVKCC----------YGFCIDLLKKLAEDVNFTYDLYLVTDGKFGTVNKsiNGEWNGMIGELVSG-RA 72
                          90       100       110
                  ....*....|....*....|....*....|...
gi 1720420912 518 DLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13687    73 DMAVASLTINPERSEVIDFSKPFKYTGITILVK 105
PBP2_iGluR_delta_like cd13716
The ligand-binding domain of the delta family of ionotropic glutamate receptors, a member of ...
439-550 1.29e-25

The ligand-binding domain of the delta family of ionotropic glutamate receptors, a member of the type 2 periplasmic-binding fold protein superfamily; This subfamily represents the ligand-binding domain of an orphan family of delta receptors, GluRdelta1 and GluRdelta2. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of iGluRs belongs to the periplasmic-binding fold type I. Although the delta receptors are members of the ionotropic glutamate receptor family, they cannot be activated by AMPA, kainate, NMDA, glutamate, or any other ligands. Phylogenetical analysis shows that both GluRdelta1 and GluRalpha2 are more homologous to non-NMDA receptors. GluRdelta2 was shown to function as an AMPA-like receptor by mutation analysis. Moreover, targeted disruption of GluRdelta2 gene caused motor coordination impairment, Purkinje cell maturation, and long-term depression of synaptic transmission. It has been suggested that GluRdelta2 is the receptor for cerebellin 1, a glycoprotein of the Clq, and the tumor necrosis factor family which is secreted from cerebellar granule cells. Furthermore, recent studies have shown that the orphan GluRdelta1 plays an essential role in high-frequency hearing and ionic homeostasis in the basal cochlea and that the locus encoding GluRdelta1 may be involved in congenial or acquired high-frequency hearing loss in humans.


Pssm-ID: 270434 [Multi-domain]  Cd Length: 257  Bit Score: 106.46  E-value: 1.29e-25
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 439 TLVVTTILENPYVMRRPNFqaLSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqKAD 518
Cdd:cd13716     3 VLRVVTVLEEPFVMVSENV--LGKPKKYQGFSIDVLDALANYLGFKYEIYVAPDHKYGSQQEDGTWNGLIGELVFK-RAD 79
                          90       100       110
                  ....*....|....*....|....*....|..
gi 1720420912 519 LAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13716    80 IGISALTITPERENVVDFTTRYMDYSVGVLLR 111
PBP2_iGluR_NMDA_Nr1 cd13719
The ligand-binding domain of the NR1 subunit of ionotropic NMDA (N-methyl-D-aspartate) ...
438-548 1.14e-22

The ligand-binding domain of the NR1 subunit of ionotropic NMDA (N-methyl-D-aspartate) glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand binding domain of the NR1, an essential channel-forming subunit of the NMDA receptor. The ionotropic N-methyl-d-asparate (NMDA) subtype of glutamate receptors serves critical functions in neuronal development, functioning, and degeneration in the mammalian central nervous system. The functional NMDA receptor is a heterotetramer ccomposed of two NR1 and two NR2 (A, B, C, and D) or of NR3 (A and B) subunits. The receptor controls a cation channel that is highly permeable to monovalent ions and calcium and exhibits voltage-dependent inhibition by magnesium. Dual agonists, glutamate and glycine, are required for efficient activation of the NMDA receptor. When co-expressed with NR1, the NR3 subunits form receptors that are activated by glycine alone and therefore can be classified as excitatory glycine receptors. NR1/NR3 receptors are calcium-impermeable and unaffected by ligands acting at the NR2 glutamate-binding site.


Pssm-ID: 270437 [Multi-domain]  Cd Length: 277  Bit Score: 98.20  E-value: 1.14e-22
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTILENPYVMRRP----------------NFQALSGNERF---EGFCVDMLRELAELLRFRYRLRLVEDGLYGAP 498
Cdd:cd13719     2 THLKIVTIHEEPFVYVRPtpsdgtcreeftvncpNFNISGRPTVPfccYGYCIDLLIKLARKMNFTYELHLVADGQFGTQ 81
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 1720420912 499 EP-NGS----WTGMVGELInRQKADLAVAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:cd13719    82 ERvNNSnkkeWNGMMGELV-SGRADMIVAPLTINPERAQYIEFSKPFKYQGLTIL 135
Lig_chan pfam00060
Ligand-gated ion channel; This family includes the four transmembrane regions of the ...
567-647 3.52e-21

Ligand-gated ion channel; This family includes the four transmembrane regions of the ionotropic glutamate receptors and NMDA receptors.


Pssm-ID: 459656 [Multi-domain]  Cd Length: 267  Bit Score: 93.91  E-value: 3.52e-21
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 567 SPAVWLFMLLAYLAVSCVLFLAARLSPYEWYNPHPCLrarphilENQYTLGNSLWFPVGGFMQQGSEIMPRALSTRCVSG 646
Cdd:pfam00060   1 SLEVWLGILVAFLIVGVVLFLLERFSPYEWRGPLETE-------ENRFTLSNSLWFSFGALVQQGHRENPRSLSGRIVVG 73

                  .
gi 1720420912 647 V 647
Cdd:pfam00060  74 V 74
PBP2_iGluR_delta_2 cd13731
The ligand-binding domain of an orphan ionotropic glutamate receptor delta-2, a member of the ...
440-550 2.58e-20

The ligand-binding domain of an orphan ionotropic glutamate receptor delta-2, a member of the type 2 periplasmic-binding fold protein superfamily; This group contains the ligand-binding domain of the delta-2 receptor of an orphan glutamate receptor family. While this ligand-binding domain is structurally homologous to the periplasmic-binding fold type II superfamily, the N-terminal domain of delta receptors belongs to the periplasmic-binding fold type I. Although the delta receptors are a member of the ionotropic glutamate receptor family, they cannot be activated by AMPA, kainate, NMDA, glutamate, or any other ligands. Phylogenetical analysis shows that both GluRdelta1 and GluRalpha2 are more homologous to non-NMDA receptors. GluRdelta2 was shown to function as an AMPA-like receptor by mutation analysis. Moreover, targeted disruption of GluRdelta2 gene caused motor coordination impairment, Purkinje cell maturation, and long-term depression of synaptic transmission. It has been suggested that GluRdelta2 is the receptor for cerebellin 1, a glycoprotein of the Clq, and the tumor necrosis factor family which is secreted from cerebellar granule cells. Furthermore, recent studies have shown that the orphan GluRdelta1 plays an essential role in high-frequency hearing and ionic homeostasis in the basal cochlea and that the locus encoding GluRdelta1 may be involved in congenial or acquired high-frequency hearing loss in humans.


Pssm-ID: 270449 [Multi-domain]  Cd Length: 257  Bit Score: 90.86  E-value: 2.58e-20
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 440 LVVTTILENPYVMRRPNfqALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELINRqKADL 519
Cdd:cd13731     4 LRVVTVLEEPFVMVSEN--VLGKPKKYQGFSIDVLDALSNYLGFNYEIYVAPDHKYGSPQEDGTWNGLVGELVFK-RADI 80
                          90       100       110
                  ....*....|....*....|....*....|.
gi 1720420912 520 AVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13731    81 GISALTITPDRENVVDFTTRYMDYSVGVLLR 111
Lig_chan-Glu_bd smart00918
Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the ...
449-512 4.46e-20

Ligated ion channel L-glutamate- and glycine-binding site; This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine. It is found in association with Lig_chan.


Pssm-ID: 214911 [Multi-domain]  Cd Length: 62  Bit Score: 84.22  E-value: 4.46e-20
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1720420912  449 PYVMRRPNfqALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYGAPEPNGSWTGMVGELI 512
Cdd:smart00918   1 PYVMLKES--PDGGNDRFEGYCIDLLKELAKKLGFTYEIILVPDGKYGARLPNGSWNGMVGELV 62
PBP1_iGluR_AMPA_GluR3 cd06387
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR3 subunit ...
252-414 8.31e-20

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR3 subunit of the AMPA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR3 subunit of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor. The AMPA receptor is a member of the glutamate-receptor ion channels (iGluRs) which are the major mediators of excitatory synaptic transmission in the central nervous system. AMPA receptors are composed of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current. Furthermore, this N-terminal domain of the iGluRs has homology with LIVBP, a bacterial periplasmic binding protein, as well as with the structurally related glutamate-binding domain of the G-protein-coupled metabotropic receptors (mGluRs).


Pssm-ID: 380610 [Multi-domain]  Cd Length: 375  Bit Score: 92.01  E-value: 8.31e-20
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 252 QASELGMTSAFYKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFV-RSLNMSWRENCEASTYPgPALSAALM 330
Cdd:cd06387   198 QVVILGKHSRGYHYMLANLGFTDILLERVMHGGANITGFQIVNNENPMVQQFLqRWVRLDEREFPEAKNAP-LKYTSALT 276
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 331 FDAVHVVVSAVRELNRSQ-EIGVKPLA--CTS--ANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSR 405
Cdd:cd06387   277 HDAILVIAEAFRYLRRQRvDVSRRGSAgdCLAnpAVPWSQGIDIERALKMVQVQGMTGNIQFDTYGRRTNYTIDVYEMKP 356

                  ....*....
gi 1720420912 406 QGHREIGVW 414
Cdd:cd06387   357 SGSRKAGYW 365
PBP2_iGluR_NMDA_Nr2 cd13718
The ligand-binding domain of the NR2 subunit of ionotropic NMDA (N-methyl-D-aspartate) ...
468-548 3.22e-19

The ligand-binding domain of the NR2 subunit of ionotropic NMDA (N-methyl-D-aspartate) glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the NR2 subunit of NMDA receptor family. The ionotropic N-methyl-d-asparate (NMDA) subtype of glutamate receptors serves critical functions in neuronal development, functioning, and degeneration in the mammalian central nervous system. The functional NMDA receptor is a heterotetramer composed of two NR1 and two NR2 (A, B, C, and D) or of NR3 (A and B) subunits. The receptor controls a cation channel that is highly permeable to monovalent ions and calcium and exhibits voltage-dependent inhibition by magnesium. Dual agonists, glutamate and glycine, are required for efficient activation of the NMDA receptor. Among NMDA receptor subtypes, the NR2B subunit containing receptors appear particularly important for pain perception; thus NR2B-selective antagonists may be useful in the treatment of chronic pain.


Pssm-ID: 270436 [Multi-domain]  Cd Length: 283  Bit Score: 88.55  E-value: 3.22e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 468 GFCVDMLRELAELLRFRYRLRLVEDGLYGAPEpNGSWTGMVGELINRqKADLAVAAFTITAEREKVIDFSKPFMTLGISI 547
Cdd:cd13718    58 GFCIDILKKLAKDVGFTYDLYLVTNGKHGKKI-NGVWNGMIGEVVYK-RADMAVGSLTINEERSEVVDFSVPFVETGISV 135

                  .
gi 1720420912 548 L 548
Cdd:cd13718   136 M 136
PBP1_iGluR_AMPA_GluR1 cd06390
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR1 subunit ...
263-414 5.44e-19

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR1 subunit of the AMPA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR1 subunit of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor. The AMPA receptor is a member of the glutamate-receptor ion channels (iGluRs) which are the major mediators of excitatory synaptic transmission in the central nervous system. AMPA receptors are composed of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current. Furthermore, this N-terminal domain of the iGluRs has homology with LIVBP, a bacterial periplasmic binding protein, as well as with the structurally related glutamate-binding domain of the G-protein-coupled metabotropic receptors (mGluRs).


Pssm-ID: 380613 [Multi-domain]  Cd Length: 367  Bit Score: 89.23  E-value: 5.44e-19
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFypefVRSLNMSWREN----CEASTYPGPALSAALMFDAVHVVV 338
Cdd:cd06390   201 YHYILANLGFMDIDLTKFKESGANVTGFQLVNYTDTI----PARIMQQWKNSdsrdLPRVDWKRPKYTSALTYDGVKVMA 276
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 339 SAVRELnRSQEIGVKPLA----CTS--ANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIG 412
Cdd:cd06390   277 EAFQSL-RRQRIDISRRGnagdCLAnpAVPWGQGIDIQRALQQVRFEGLTGNVQFNEKGRRTNYTLHVIEMKHDGIRKIG 355

                  ..
gi 1720420912 413 VW 414
Cdd:cd06390   356 YW 357
PBP2_iGluR_NMDA_Nr3 cd13720
The ligand-binding domain of the NR3 subunit of ionotropic NMDA (N-methyl-D-aspartate) ...
442-550 1.54e-17

The ligand-binding domain of the NR3 subunit of ionotropic NMDA (N-methyl-D-aspartate) glutamate receptors, a member of the type 2 periplasmic binding fold protein superfamily; This group contains the ligand-binding domain of the NR3 subunit of NMDA receptor family. The ionotropic N-methyl-d-asparate (NMDA) subtype of glutamate receptors serves critical functions in neuronal development, functioning, and degeneration in the mammalian central nervous system. The functional NMDA receptor is a heterotetramer composed of two NR1 and two NR2 (A, B, C, and D) or of NR3 (A and B) subunits. The receptor controls a cation channel that is highly permeable to monovalent ions and calcium and exhibits voltage-dependent inhibition by magnesium. Dual agonists, glutamate and glycine, are required for efficient activation of the NMDA receptor. Among NMDA receptor subtypes, the NR2B subunit containing receptors appear particularly important for pain perception; thus NR2B-selective antagonists may be useful in the treatment of chronic pain.


Pssm-ID: 270438 [Multi-domain]  Cd Length: 283  Bit Score: 83.36  E-value: 1.54e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 442 VTTILENPYVMRR----------------------PNFQALSGNERFE-------------GFCVDMLRELAELLRFRYR 486
Cdd:cd13720     6 VVTLLEHPFVFTRevdeeglcpagqlcldpmtndsSTLDALFSSLHSSndtvpikfrkccyGYCIDLLEKLAEDLGFDFD 85
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1720420912 487 LRLVEDGLYGaPEPNGSWTGMVGELINrQKADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13720    86 LYIVGDGKYG-AWRNGRWTGLVGDLLS-GRAHMAVTSFSINSARSQVIDFTSPFFSTSLGILVR 147
PBP1_iGluR_AMPA_GluR2 cd06389
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR2 subunit ...
263-414 2.67e-15

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR2 subunit of the AMPA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR2 subunit of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor. The AMPA receptor is a member of the glutamate-receptor ion channels (iGluRs) which are the major mediators of excitatory synaptic transmission in the central nervous system. AMPA receptors are composed of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current. Furthermore, this N-terminal domain of the iGluRs has homology with LIVBP, a bacterial periplasmic binding protein, as well as with the structurally related glutamate-binding domain of the G-protein-coupled metabotropic receptors (mGluRs).


Pssm-ID: 380612 [Multi-domain]  Cd Length: 372  Bit Score: 78.13  E-value: 2.67e-15
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFYPEFVRSlnmsWrENCEASTYPGP-----ALSAALMFDAVHVV 337
Cdd:cd06389   206 YHYIIANLGFTDGDLLKIQFGGANVSGFQIVDYDDSLVSKFIER----W-STLEEKEYPGAhtttiKYTSALTYDAVQVM 280
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 338 VSAVRELnRSQEIGVKPLA----CTS--ANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREI 411
Cdd:cd06389   281 TEAFRNL-RKQRIEISRRGnagdCLAnpAVPWGQGVEIERALKQVQVEGLSGNIKFDQNGKRINYTINIMELKTNGPRKI 359

                  ...
gi 1720420912 412 GVW 414
Cdd:cd06389   360 GYW 362
PBP1_iGluR_AMPA_GluR4 cd06388
N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR4 subunit ...
263-414 3.39e-15

N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR4 subunit of the AMPA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the GluR4 subunit of the AMPA (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) receptor. The AMPA receptor is a member of the glutamate-receptor ion channels (iGluRs) which are the major mediators of excitatory synaptic transmission in the central nervous system. AMPA receptors are composed of four types of subunits (GluR1, GluR2, GluR3, and GluR4) which combine to form a tetramer and play an important role in mediating the rapid excitatory synaptic current. Furthermore, this N-terminal domain of the iGluRs has homology with LIVBP, a bacterial periplasmic binding protein, as well as with the structurally related glutamate-binding domain of the G-protein-coupled metabotropic receptors (mGluRs).


Pssm-ID: 380611 [Multi-domain]  Cd Length: 373  Bit Score: 77.76  E-value: 3.39e-15
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 263 YKYILTTMDFPILHLDGIVEDSSNILGFSMFNTSHPFypefVRSLNMSWREnCEASTYPG----PALSAALMFDAVHVVV 338
Cdd:cd06388   208 YHYIIANLGFKDISLERFMHGGANVTGFQLVDFNTPM----VTKLMQRWKK-LDQREYPGsetpPKYTSALTYDGVLVMA 282
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 339 SAVRELNR-----SQEIGVKPLACTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQRTNYTLRILEKSRQGHREIGV 413
Cdd:cd06388   283 ETFRNLRRqkidiSRRGNAGDCLANPAAPWGQGIDMERTLKQVRIQGLTGNVQFDHYGRRVNYTMDVFELKSTGPRKVGY 362

                  .
gi 1720420912 414 W 414
Cdd:cd06388   363 W 363
PBP2_peptides_like cd13530
Peptide-binding protein and related homologs; type 2 periplasmic binding protein fold; This ...
439-548 6.51e-12

Peptide-binding protein and related homologs; type 2 periplasmic binding protein fold; This domain is found in solute binding proteins that serve as initial receptors in the ABC transport, signal transduction and channel gating. The PBP2 proteins share the same architecture as periplasmic binding proteins type 1, but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The majority of PBP2 proteins function in the uptake of small soluble substrates in eubacteria and archaea. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction.


Pssm-ID: 270248 [Multi-domain]  Cd Length: 217  Bit Score: 65.35  E-value: 6.51e-12
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 439 TLVVTTilENPYvmrrPNFQALSGNERFEGFCVDMLRELAELLrfryrlrlvedGLygAPEP-NGSWTGMVGELINRqKA 517
Cdd:cd13530     1 TLRVGT--DADY----PPFEYIDKNGKLVGFDVDLANAIAKRL-----------GV--KVEFvDTDFDGLIPALQSG-KI 60
                          90       100       110
                  ....*....|....*....|....*....|.
gi 1720420912 518 DLAVAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:cd13530    61 DVAISGMTITPERAKVVDFSDPYYYTGQVLV 91
PBP2_GluR0 cd00997
Bacterial GluR0 ligand-binding domain; the type 2 periplasmic binding protein fold; Glutamate ...
438-552 4.39e-11

Bacterial GluR0 ligand-binding domain; the type 2 periplasmic binding protein fold; Glutamate receptor domain GluR0. These domains are found in the GluR0 proteins that have been shown to function as prokaryotic L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. The GluR0 proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270218 [Multi-domain]  Cd Length: 218  Bit Score: 63.12  E-value: 4.39e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTILENPYVMrrpnfqalSGNERFEGFCVDMLRELAELLRFRYRLRLVEdglygapepngSWTGMVGELINRqKA 517
Cdd:cd00997     3 QTLTVATVPRPPFVF--------YNDGELTGFSIDLWRAIAERLGWETEYVRVD-----------SVSALLAAVAEG-EA 62
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 518 DLAVAAFTITAEREKVIDFSKPFMTLGISILYRVH 552
Cdd:cd00997    63 DIAIAAISITAEREAEFDFSQPIFESGLQILVPNT 97
HisJ COG0834
ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino ...
455-550 8.25e-11

ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino acid transport and metabolism, Signal transduction mechanisms];


Pssm-ID: 440596 [Multi-domain]  Cd Length: 223  Bit Score: 62.30  E-value: 8.25e-11
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAELLrfryrlrlvedGLygAPEP-NGSWTGMVGELINRqKADLAVAAFTITAEREKV 533
Cdd:COG0834    10 PPFSFRDEDGKLVGFDVDLARAIAKRL-----------GL--KVEFvPVPWDRLIPALQSG-KVDLIIAGMTITPEREKQ 75
                          90
                  ....*....|....*..
gi 1720420912 534 IDFSKPFMTLGISILYR 550
Cdd:COG0834    76 VDFSDPYYTSGQVLLVR 92
SBP_bac_3 pfam00497
Bacterial extracellular solute-binding proteins, family 3; This is a sensor domain found in ...
456-550 1.48e-10

Bacterial extracellular solute-binding proteins, family 3; This is a sensor domain found in solute-binding protein family 3 members from Gram-positive bacteria, Gram-negative bacteria and archaea. It can also be found in the N-terminal of the membrane-bound lytic murein transglycosylase F (MltF) protein. This domain recognizes Nicotinate, quidalnate, pyridine-2,5-dicarboxylate and salicylate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).


Pssm-ID: 425719 [Multi-domain]  Cd Length: 221  Bit Score: 61.54  E-value: 1.48e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 456 NFQALSGNerFEGFCVDMLRELAELlrfryrlrlvedgLYGAPEP-NGSWTGMVGELINRqKADLAVAAFTITAEREKVI 534
Cdd:pfam00497  13 EYVDENGK--LVGFDVDLAKAIAKR-------------LGVKVEFvPVSWDGLIPALQSG-KVDLIIAGMTITPERAKQV 76
                          90
                  ....*....|....*.
gi 1720420912 535 DFSKPFMTLGISILYR 550
Cdd:pfam00497  77 DFSDPYYYSGQVILVR 92
PBP1_iGluR_NMDA_NR1 cd06379
N-terminal leucine-isoleucine-valine-binding protein (LIVBP)-like domain of the NR1, an ...
332-395 1.93e-08

N-terminal leucine-isoleucine-valine-binding protein (LIVBP)-like domain of the NR1, an essential channel-forming subunit of the NMDA receptor; N-terminal leucine-isoleucine-valine binding protein (LIVBP)-like domain of the NR1, an essential channel-forming subunit of the NMDA receptor. The ionotropic N-methyl-D-asparate (NMDA) subtype of glutamate receptor serves critical functions in neuronal development, functioning, and degeneration in the mammalian central nervous system. The functional NMDA receptor is a heterotetramer ccomposed of two NR1 and two NR2 (A, B, C, and D) or of NR3 (A and B) subunits. The receptor controls a cation channel that is highly permeable to monovalent ions and calcium and exhibits voltage-dependent inhibition by magnesium. Dual agonists, glutamate and glycine, are required for efficient activation of the NMDA receptor. When co-expressed with NR1, the NR3 subunits form receptors that are activated by glycine alone and therefore can be classified as excitatory glycine receptors. NR1/NR3 receptors are calcium-impermeable and unaffected by ligands acting at the NR2 glutamate-binding site


Pssm-ID: 380602  Cd Length: 364  Bit Score: 56.96  E-value: 1.93e-08
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1720420912 332 DAVHVVVSAVRELNRSQEIGVK-PLACT-SANIWPHGTSLMNYLRMVEY-DGLTGRVEFNSKGQRTN 395
Cdd:cd06379   256 DSVSVVAQAIRELFRSSENITDpPVDCRdDTNIWKSGQKFFRVLKSVKLsDGRTGRVEFNDKGDRIG 322
PBP2_Arg_Lys_His cd13624
Substrate binding domain of the arginine-, lysine-, histidine-binding protein ArtJ; the type 2 ...
439-550 3.28e-08

Substrate binding domain of the arginine-, lysine-, histidine-binding protein ArtJ; the type 2 periplasmic binding protein fold; This group includes the periplasmic substrate-binding protein ArtJ of the ATP-binding cassette (ABC) transport system from the thermophilic bacterium Geobacillus stearothermophilus, which is specific for arginine, lysine, and histidine. ArtJ belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270342 [Multi-domain]  Cd Length: 219  Bit Score: 54.42  E-value: 3.28e-08
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 439 TLVVTTilENPYvmrrPNFQALSGNERFEGFCVDMLRELAEllrfryrlrlvEDGLygapEP---NGSWTGMVGELINRq 515
Cdd:cd13624     1 TLVVGT--DATF----PPFEFVDENGKIVGFDIDLIKAIAK-----------EAGF----EVefkNMAFDGLIPALQSG- 58
                          90       100       110
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13624    59 KIDIIISGMTITEERKKSVDFSDPYYEAGQAIVVR 93
PBPb smart00062
Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in ...
462-550 1.72e-07

Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in PBPe


Pssm-ID: 214497 [Multi-domain]  Cd Length: 219  Bit Score: 52.33  E-value: 1.72e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912  462 GNERFEGFCVDMLRELAELLRFRYRLRLVedglygapepngSWTGMVgELINRQKADLAVAAFTITAEREKVIDFSKPFM 541
Cdd:smart00062  18 EDGELTGFDVDLAKAIAKELGLKVEFVEV------------SFDSLL-TALKSGKIDVVAAGMTITPERAKQVDFSDPYY 84

                   ....*....
gi 1720420912  542 TLGISILYR 550
Cdd:smart00062  85 RSGQVILVR 93
PBP2_Peb1a_like cd13691
Substrate binding domain of an ABC aspartate/glutamate transporter; the type 2 ...
465-550 6.17e-07

Substrate binding domain of an ABC aspartate/glutamate transporter; the type 2 periplasmic-binding protein fold; This group includes periplasmic aspartate/glutamate binding domain Peb1a and its closely related protein. The Peb1a is an important virulence factor in the food-borne human pathogen Campylobacter jejuni, which has a major role in adherence and host colonization. The Peb1a domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270409 [Multi-domain]  Cd Length: 228  Bit Score: 50.91  E-value: 6.17e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 465 RFEGFCVDMLRELAELlrfryrlrlvedGLYGAPEPNGSWTGMVGELINRQKADLAVAAFTITAEREKVIDFSKPFMTLG 544
Cdd:cd13691    30 KYEGMEVDLARKLAKK------------GDGVKVEFTPVTAKTRGPLLDNGDVDAVIATFTITPERKKSYDFSTPYYTDA 97

                  ....*.
gi 1720420912 545 ISILYR 550
Cdd:cd13691    98 IGVLVE 103
PBP1_GABAb_receptor_plant cd19990
periplasmic ligand-binding domain of Arabidopsis thaliana glutamate receptors and its close ...
242-414 6.65e-07

periplasmic ligand-binding domain of Arabidopsis thaliana glutamate receptors and its close homologs in other plants; This group includes the ligand-binding domain of Arabidopsis thaliana glutamate receptors, which have sequence similarity with animal ionotropic glutamate receptor and its close homologs in other plants. The ligand-binding domain of GABAb receptors are metabotropic transmembrane receptors for gamma-aminobutyric acid (GABA). GABA is the major inhibitory neurotransmitter in the mammalian CNS and, like glutamate and other transmitters, acts via both ligand gated ion channels (GABAa receptors) and G-protein coupled receptors (GABAb receptor or GABAbR). GABAa receptors are members of the ionotropic receptor superfamily which includes alpha-adrenergic and glycine receptors. The GABAb receptor is a member of a receptor superfamily which includes the mGlu receptors. The GABAb receptor is coupled to G alpha-i proteins, and activation causes a decrease in calcium, an increase in potassium membrane conductance, and inhibition of cAMP formation. The response is thus inhibitory and leads to hyperpolarization and decreased neurotransmitter release, for example.


Pssm-ID: 380645 [Multi-domain]  Cd Length: 373  Bit Score: 51.85  E-value: 6.65e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 242 SLPLGLSCVLQASELGMTSAFYKYILTTMDFPILHldgiVEDSSNIlgFSM-----FNTSHPFYPEFvRSLNMSWRENCE 316
Cdd:cd19990   198 SSLLASRLFQEAKKLGMMEKGYVWIVTDGITNLLD----SLDSSTI--SSMqgvigIKTYIPESSEF-QDFKARFRKKFR 270
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 317 AST----YPGPALSAALMFDAVHVVVSAVRELNRSqeigvkplaCTSANIWPHGTSLMNYLRMVEYDGLTGRVEFNSKGQ 392
Cdd:cd19990   271 SEYpeeeNAEPNIYALRAYDAIWALAHAVEKLNSS---------GGNISVSDSGKKLLEEILSTKFKGLSGEVQFVDGQL 341
                         170       180
                  ....*....|....*....|..
gi 1720420912 393 RTNYTLRILEKSRQGHREIGVW 414
Cdd:cd19990   342 APPPAFEIVNVIGKGYRELGFW 363
PBP2_Cysteine cd13694
Substrate binding domain of ABC cysteine transporter; the type 2 periplasmic binding protein ...
455-545 2.74e-06

Substrate binding domain of ABC cysteine transporter; the type 2 periplasmic binding protein fold; This subfamily comprises of the periplasmic-binding protein component of ABC transporter specific for cysteine and its closely related proteins. The cysteine-binding domains belong to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270412 [Multi-domain]  Cd Length: 229  Bit Score: 48.89  E-value: 2.74e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAELLRfryrlrlvedGLYGAPEPNGSWTGMVGELINRQKADLAVAAFTITAEREKVI 534
Cdd:cd13694    19 PPFGYVDENGKFQGFDIDLAKQIAKDLF----------GSGVKVEFVLVEAANRVPYLTSGKVDLILANFTVTPERAEVV 88
                          90
                  ....*....|...
gi 1720420912 535 DFSKPFM--TLGI 545
Cdd:cd13694    89 DFANPYMkvALGV 101
PBP2_Arg_3 cd13622
Substrate binding domain of an arginine 3rd transport system; the type 2 periplasmic binding ...
438-542 6.83e-06

Substrate binding domain of an arginine 3rd transport system; the type 2 periplasmic binding fold; This subgroup is similar to the HisJ-like family that comprises the periplasmic substrate-binding proteins, including the lysine-, arginine-, ornithine-binding protein (LAO) and the histidine-binding protein (HisJ), which serve as initial receptors for active transport. HisJ and LAO proteins belong to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270340 [Multi-domain]  Cd Length: 222  Bit Score: 47.68  E-value: 6.83e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVV-TTILENPYVMRrpnfqalSGNERFEGFCVDMLRELAELLRFRYRLRLVE-DGLYGApepngswtgmvgelINRQ 515
Cdd:cd13622     2 KPLIVgVGKFNPPFEMQ-------GTNNELFGFDIDLMNEICKRIQRTCQYKPMRfDDLLAA--------------LNNG 60
                          90       100
                  ....*....|....*....|....*..
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMT 542
Cdd:cd13622    61 KVDVAISSISITPERSKNFIFSLPYLL 87
PBP2_GluB cd13690
Substrate binding domain of ABC glutamate transporter; the type 2 periplasmic binding protein ...
455-550 9.10e-06

Substrate binding domain of ABC glutamate transporter; the type 2 periplasmic binding protein fold; This group includes periplasmic glutamate-binding domain GluB from Corynebacterium efficiens and its related proteins. The GluB domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270408 [Multi-domain]  Cd Length: 231  Bit Score: 47.26  E-value: 9.10e-06
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNE-RFEGFCVDMLRELAELLrfryrlrlvedglyGAPEPNGSWTGMVGE----LINRQKADLAVAAFTITAE 529
Cdd:cd13690    19 PGFSLRNPTTgEFEGFDVDIARAVARAI--------------GGDEPKVEFREVTSAereaLLQNGTVDLVVATYSITPE 84
                          90       100
                  ....*....|....*....|.
gi 1720420912 530 REKVIDFSKPFMTLGISILYR 550
Cdd:cd13690    85 RRKQVDFAGPYYTAGQRLLVR 105
PBP2_Ala cd13628
Periplasmic substrate binding domain of ABC-type transporter specific to alanine; the type 2 ...
502-542 1.29e-05

Periplasmic substrate binding domain of ABC-type transporter specific to alanine; the type 2 periplasmic binding protein; This periplasmic substrate component serves as an initial receptor in the ABC transport of glutamine in eubacteria and archaea. After binding the alanine with high affinity, this domain Interacts with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. This alanine specific domain belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270346 [Multi-domain]  Cd Length: 219  Bit Score: 46.69  E-value: 1.29e-05
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 1720420912 502 GSWTGMVGELINRQkADLAVAAFTITAEREKVIDFSKPFMT 542
Cdd:cd13628    47 YDFNGLIPALASGQ-ADLALAGITPTPERKKVVDFSEPYYE 86
PBP2_GlnH cd00994
Glutamine binding domain of ABC-type transporter; the type 2 periplasmic binding protein fold; ...
515-550 1.89e-05

Glutamine binding domain of ABC-type transporter; the type 2 periplasmic binding protein fold; This periplasmic substrate-binding component serves as an initial receptor in the ABC transport of glutamine in bacteria and eukaryota. GlnH belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270216 [Multi-domain]  Cd Length: 218  Bit Score: 46.11  E-value: 1.89e-05
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 1720420912 515 QKADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd00994    57 GRIDIAIAGITITEERKKVVDFSDPYYDSGLAVMVK 92
PBP2_GltI_DEBP cd13688
Substrate-binding domain of ABC aspartate-glutamate transporter; the type 2 periplasmic ...
457-550 3.15e-05

Substrate-binding domain of ABC aspartate-glutamate transporter; the type 2 periplasmic binding protein fold; This subfamily represents the periplasmic-binding protein component of ABC transporter specific for carboxylic amino acids, including GtlI from Escherichia coli. The aspartate-glutamate binding domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270406 [Multi-domain]  Cd Length: 238  Bit Score: 45.71  E-value: 3.15e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 457 FQALSGNERFEGFCVDMLRELAELLRFRYRLRLVEDGLYgapePNGSWTGMvgELINRQKADLAVAAFTITAEREKVIDF 536
Cdd:cd13688    21 FSYLDDNGKPVGYSVDLCNAIADALKKKLALPDLKVRYV----PVTPQDRI--PALTSGTIDLECGATTNTLERRKLVDF 94
                          90
                  ....*....|....
gi 1720420912 537 SKPFMTLGISILYR 550
Cdd:cd13688    95 SIPIFVAGTRLLVR 108
PBP2_OccT_like cd13699
Substrate binding domain of ABC-type octopine transporter-like; the type 2 periplasmic-binding ...
503-545 3.71e-05

Substrate binding domain of ABC-type octopine transporter-like; the type 2 periplasmic-binding protein fold; This group includes periplasmic octopine-binding protein and related proteins. This group belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270417 [Multi-domain]  Cd Length: 211  Bit Score: 45.44  E-value: 3.71e-05
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|..
gi 1720420912 503 SWTGMVGELiNRQKADLAVAAFTITAEREKVIDFSKPF---------MTLGI 545
Cdd:cd13699    49 DWDGMIPAL-NAGKFDVIMDAMSITAERKKVIDFSTPYaatpnsfavVTIGV 99
PBP2_Dsm1740 cd13629
Amino acid-binding domain of the type 2 periplasmic binding fold superfamily; This subfamily ...
468-550 5.71e-05

Amino acid-binding domain of the type 2 periplasmic binding fold superfamily; This subfamily includes the periplasmic binding protein type II (BPBII). This domain is found in solute binding proteins that serve as initial receptors in the ABC transport, signal transduction and channel gating. The PBPII proteins share the same architecture as periplasmic binding proteins type I (PBPI), but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The majority of PBPII proteins function in the uptake of small soluble substrates in eubacteria and archaea. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction.


Pssm-ID: 270347 [Multi-domain]  Cd Length: 221  Bit Score: 44.87  E-value: 5.71e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 468 GFCVDMLRELAELLrfryrlrlvedglyGAP-EP-NGSWTGMVGELINrQKADLAVAAFTITAEREKVIDFSKPFMTLGI 545
Cdd:cd13629    24 GFDVDLAKALAKDL--------------GVKvEFvNTAWDGLIPALQT-GKFDLIISGMTITPERNLKVNFSNPYLVSGQ 88

                  ....*
gi 1720420912 546 SILYR 550
Cdd:cd13629    89 TLLVN 93
PBP2_HisK cd13704
The periplasmic sensor domain of histidine kinase receptors; the type 2 periplasmic binding ...
455-550 6.31e-05

The periplasmic sensor domain of histidine kinase receptors; the type 2 periplasmic binding fold protein; This subfamily includes the periplasmic sensor domain of the histidine kinase receptors (HisK) which are elements of the two-component signal transduction systems commonly found in bacteria and lower eukaryotes. Typically, the two-component system consists of a membrane-spanning histidine kinase sensor and a cytoplasmic response regulator. The two-component systems serve as a stimulus-response coupling mechanism to enable microorganisms to sense and respond to changes in environmental conditions. Extracellular stimuli such as small molecule ligands and ions are detected by the N-terminal periplasmic sensing domain of the sensor kinase receptor, which regulate the catalytic activity of the cytoplasmic kinase domain and promote ATP-dependent autophosphorylation of a conserved histidine residue. The phosphate is then transferred to a conserved aspartate in the response regulator through a phospho-transfer mechanism, and the activity of the response regulator is in turn regulated. The sensor domain belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space through their function as an initial high-affinity binding component. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270422 [Multi-domain]  Cd Length: 220  Bit Score: 44.88  E-value: 6.31e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAEllrfryrlrlvEDGLygapepN-----GSWTGMVGELiNRQKADLAVAAFtITAE 529
Cdd:cd13704    13 PPYEFLDENGNPTGFNVDLLRAIAE-----------EMGL------KveirlGPWSEVLQAL-ENGEIDVLIGMA-YSEE 73
                          90       100
                  ....*....|....*....|.
gi 1720420912 530 REKVIDFSKPFMTLGISILYR 550
Cdd:cd13704    74 RAKLFDFSDPYLEVSVSIFVR 94
GluR_Plant cd13686
Plant glutamate receptor domain; the type 2 periplasmic binding protein fold; This subfamily ...
451-548 9.83e-05

Plant glutamate receptor domain; the type 2 periplasmic binding protein fold; This subfamily contains the glutamate receptor domain GluR. These domains are found in the GluR proteins that have been shown to function as L-glutamate activated potassium channels, also known ionotropic glutamate receptors or iGluRs. In addition to two ligand binding core domains, iGluRs typically have a channel-like domain inserted in the middle of the GluR-like domain. Animal iGluRs mediate the ion flux in the synapses of the CNS and can be subdivided into several classes depending on the neurotransmitter specificity and ion conductance properties. Their plant homologs have been shown to function in light signal transduction and calcium homeostasis. The GluR proteins belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270404 [Multi-domain]  Cd Length: 232  Bit Score: 44.43  E-value: 9.83e-05
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 451 VMRRPNfqalSGNERFEGFCVDM----LRELAellrfryrlrlvedglYGAP------EPNGSWTGMVGELINrQKADLA 520
Cdd:cd13686    19 VTRDPI----TNSTSVTGFCIDVfeaaVKRLP----------------YAVPyefipfNDAGSYDDLVYQVYL-KKFDAA 77
                          90       100
                  ....*....|....*....|....*...
gi 1720420912 521 VAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:cd13686    78 VGDITITANRSLYVDFTLPYTESGLVMV 105
PRK11260 PRK11260
cystine ABC transporter substrate-binding protein;
431-550 1.97e-04

cystine ABC transporter substrate-binding protein;


Pssm-ID: 183061 [Multi-domain]  Cd Length: 266  Bit Score: 43.56  E-value: 1.97e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 431 LSQTLANKTLVVTtiLENPYvmrrP--NFQALSGneRFEGFCVDMLRELAEllrfryrlrlvEDGLYGAPEPNgSWTGMV 508
Cdd:PRK11260   34 LNKVKERGTLLVG--LEGTY----PpfSFQGEDG--KLTGFEVEFAEALAK-----------HLGVKASLKPT-KWDGML 93
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|..
gi 1720420912 509 GELiNRQKADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:PRK11260   94 ASL-DSKRIDVVINQVTISDERKKKYDFSTPYTVSGIQALVK 134
PBP2_GltS cd13620
Substrate binding domain of glutamate or arginine ABC transporter, a member of the type 2 ...
516-550 2.19e-04

Substrate binding domain of glutamate or arginine ABC transporter, a member of the type 2 periplasmic binding fold protein superfamily; This family comprises of the periplasmic-binding protein component (GltS) of an ABC transporter specific for glutamate or arginine from Lactococcus lactis, as well as its closely related proteins. The GltS domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis


Pssm-ID: 270338 [Multi-domain]  Cd Length: 227  Bit Score: 43.10  E-value: 2.19e-04
                          10        20        30
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13620    66 KVDMAISGMTPTPERKKSVDFSDVYYEAKQSLLVK 100
PBP2_FliY cd13712
Substrate binding domain of an Escherichia coli ABC transporter; the type 2 periplasmic ...
456-550 2.52e-04

Substrate binding domain of an Escherichia coli ABC transporter; the type 2 periplasmic binding protein fold; This group contains cystine binding domain FliY and its related proteins. Cystine is an oxidized dimeric form of cysteine that is required for optimal bacterial growth. In Bacillus subtilis, three ABC transporters, TcyJKLMN (YtmJKLMN), TcyABC (YckKJI), and YxeMNO are involved in uptake of cystine. Likewise, three uptake systems were identified in Salmonella enterica serovar Typhimurium, while in Escherichia coli, two transport systems seem to be involved in cystine uptake. Moreover, L-cystine limitation was shown to prevent virulence of Neisseria gonorrhoeae; thus, its L-cystine solute receptor (Ngo0372) may be suited as target for an antimicrobial vaccine. The cystine receptor belongs to the type 2 periplasmic binding fold protein superfamily (PBP2). The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270430 [Multi-domain]  Cd Length: 219  Bit Score: 42.76  E-value: 2.52e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 456 NFQALSGneRFEGFCVDMLRELAELLRFRYRLRLVEdglygapepngsWTGMVGELiNRQKADLAVAAFTITAEREKVID 535
Cdd:cd13712    14 NFKDETG--QLTGFEVDVAKALAAKLGVKPEFVTTE------------WSGILAGL-QAGKYDVIINQVGITPERQKKFD 78
                          90
                  ....*....|....*
gi 1720420912 536 FSKPFMTLGISILYR 550
Cdd:cd13712    79 FSQPYTYSGIQLIVR 93
PBP2_Cys_DEBP_like cd01000
Substrate-binding domain of cysteine- and aspartate/glutamate-binding proteins; the type 2 ...
516-548 2.86e-04

Substrate-binding domain of cysteine- and aspartate/glutamate-binding proteins; the type 2 periplasmic-binding protein fold; This family comprises of the periplasmic-binding protein component of ABC transporters specific for cysteine and carboxylic amino acids, as well as their closely related proteins. The cysteine and aspartate-glutamate binding domains belong to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270221 [Multi-domain]  Cd Length: 228  Bit Score: 42.68  E-value: 2.86e-04
                          10        20        30
                  ....*....|....*....|....*....|...
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:cd01000    70 KVDLIIATMTITPERAKEVDFSVPYYADGQGLL 102
PBP2_SMa0082_like cd01072
The substrate-binding domain of putatuve amino acid transporter; the type 2 periplasmic ...
516-547 3.55e-04

The substrate-binding domain of putatuve amino acid transporter; the type 2 periplasmic binding protein fold; This group includes the periplamic-binding protein component of a putative amino acid ABC transporter from Sinorhizobium meliloti and its related proteins. The putative SMa0082-like domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270233 [Multi-domain]  Cd Length: 238  Bit Score: 42.64  E-value: 3.55e-04
                          10        20        30
                  ....*....|....*....|....*....|..
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISI 547
Cdd:cd01072    72 KVDMLIASLGITPERAKVVDFSQPYAAFYLGV 103
PBP2_Cystine_like cd13626
Substrate binding domain of cystine ABC transporters; the type 2 periplasmic binding protein ...
455-550 3.61e-04

Substrate binding domain of cystine ABC transporters; the type 2 periplasmic binding protein fold; Cystine-binding domain of periplasmic receptor-dependent ATP-binding cassette (ABC) transporters. Cystine is an oxidized dimeric form of cysteine that is required for optimal bacterial growth. In Bacillus subtilis, three ABC transporters, TcyJKLMN (YtmJKLMN), TcyABC (YckKJI), and YxeMNO are involved in uptake of cystine. Also, three uptake systems were identified in Salmonella enterica serovar Typhimurium, while in Escherichia coli, two transport systems seem to be involved in cystine uptake. Moreover, L-cystine limitation was shown to prevent virulence of Neisseria gonorrhoeae; thus, its L-cystine solute receptor (Ngo0372) may be suited as target for an antimicrobial vaccine. The cystine receptor belongs to the type 2 periplasmic binding fold protein superfamily (PBP2). The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270344 [Multi-domain]  Cd Length: 219  Bit Score: 42.30  E-value: 3.61e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAELLrfryrlrlvedGLYGAPEPnGSWTGMVGELiNRQKADLAVAAFTITAEREKVI 534
Cdd:cd13626    11 PPFTFKDEDGKLTGFDVEVGREIAKRL-----------GLKVEFKA-TEWDGLLPGL-NSGKFDVIANQVTITPEREEKY 77
                          90
                  ....*....|....*.
gi 1720420912 535 DFSKPFMTLGISILYR 550
Cdd:cd13626    78 LFSDPYLVSGAQIIVK 93
PBP2_HisJ_LAO_like cd01001
Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporters and ...
438-564 3.73e-04

Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporters and related proteins; the type 2 periplasmic-binding protein fold; This family comprises the periplasmic substrate-binding proteins, including the lysine-, arginine-, ornithine-binding protein (LAO) and the histidine-binding protein (HisJ), which serve as initial receptors for active transport. HisJ and LAO proteins belong to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270222 [Multi-domain]  Cd Length: 228  Bit Score: 42.67  E-value: 3.73e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 438 KTLVVTTilENPYvmrrPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVedglygapepngSWTGMVGELINRqKA 517
Cdd:cd01001     2 DTLRIGT--EGDY----PPFNFLDADGKLVGFDIDLANALCKRMKVKCEIVTQ------------PWDGLIPALKAG-KY 62
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*..
gi 1720420912 518 DLAVAAFTITAEREKVIDFSKPFMTLGISILYRVHMGRKPGYFSFLD 564
Cdd:cd01001    63 DAIIASMSITDKRRQQIDFTDPYYRTPSRFVARKDSPITDTTPAKLK 109
PBP2_Cystine_like_1 cd13713
Substrate binding domain of putative ABC transporters involved in cystine import; the type 2 ...
467-550 3.98e-04

Substrate binding domain of putative ABC transporters involved in cystine import; the type 2 periplasmic binding protein fold; This group contains uncharacterized periplasmic cystine-binding domain of ATP-binding cassette (ABC) transporters. Cystine is an oxidized dimeric form of cysteine that is required for optimal bacterial growth. In Bacillus subtilis, three ABC transporters, TcyJKLMN (YtmJKLMN), TcyABC (YckKJI), and YxeMNO are involved in uptake of cystine. Likewise, three uptake systems were identified in Salmonella enterica serovar Typhimurium, while in Escherichia coli, two transport systems seem to be involved in cystine uptake. Moreover, L-cystine limitation was shown to prevent virulence of Neisseria gonorrhoeae; thus, its L-cystine solute receptor (Ngo0372) may be suited as target for an antimicrobial vaccine. The cystine receptor belongs to the type 2 periplasmic binding fold protein superfamily (PBP2). The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270431 [Multi-domain]  Cd Length: 218  Bit Score: 42.27  E-value: 3.98e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 467 EGFCVDMLRELAELlrfryrlrlvedgLYGAPEP-NGSWTGMVGELiNRQKADLAVAAFTITAEREKVIDFSKPFMTLGI 545
Cdd:cd13713    23 VGFDVDVAKAIAKR-------------LGVKVEPvTTAWDGIIAGL-WAGRYDIIIGSMTITEERLKVVDFSNPYYYSGA 88

                  ....*
gi 1720420912 546 SILYR 550
Cdd:cd13713    89 QIFVR 93
PBP2_BsGlnH cd13689
Substrate binding domain of ABC glutamine transporter from Bacillus subtilis; the type 2 ...
516-550 4.50e-04

Substrate binding domain of ABC glutamine transporter from Bacillus subtilis; the type 2 periplasmic-bindig protein fold; This group includes periplasmic glutamine-binding domain GlnP from Bacillus subtilis and its related proteins. The GlnP domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270407 [Multi-domain]  Cd Length: 229  Bit Score: 42.22  E-value: 4.50e-04
                          10        20        30
                  ....*....|....*....|....*....|....*
gi 1720420912 516 KADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:cd13689    68 RVDLVAANLTYTPERAEQIDFSDPYFVTGQKLLVK 102
glnH PRK09495
glutamine ABC transporter periplasmic protein; Reviewed
420-548 7.73e-04

glutamine ABC transporter periplasmic protein; Reviewed


Pssm-ID: 236540 [Multi-domain]  Cd Length: 247  Bit Score: 41.65  E-value: 7.73e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 420 LAMNATTLDINLSQTLANKTLVVTTilENPYVmrrPnFQALSGNeRFEGFCVDMLRELAEllrfryrlrlvEDGLYGAPE 499
Cdd:PRK09495    7 VSLAALTLAFAVSSHAADKKLVVAT--DTAFV---P-FEFKQGD-KYVGFDIDLWAAIAK-----------ELKLDYTLK 68
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*....
gi 1720420912 500 PNgSWTGMVGELiNRQKADLAVAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:PRK09495   69 PM-DFSGIIPAL-QTKNVDLALAGITITDERKKAIDFSDGYYKSGLLVM 115
PBP2_YxeM cd13709
Substrate binding domain of an ABC transporter YxeMNO; the type 2 periplasmic binding protein ...
463-556 8.39e-04

Substrate binding domain of an ABC transporter YxeMNO; the type 2 periplasmic binding protein fold; This group contains cystine-binding domain (YxeM) of a periplasmic receptor-dependent ATP-binding cassette transporter and its closely related proteins. Cystine is an oxidized dimeric form of cysteine that is required for optimal bacterial growth. In Bacillus subtilis, three ABC transporters, TcyJKLMN (YtmJKLMN), TcyABC (YckKJI), and YxeMNO are involved in uptake of cystine. Likewise, three uptake systems were identified in Salmonella enterica serovar Typhimurium, while in Escherichia coli, two transport systems seem to be involved in cystine uptake. Moreover, L-cystine limitation was shown to prevent virulence of Neisseria gonorrhoeae; thus, its L-cystine solute receptor (Ngo0372) may be suited as target for an antimicrobial vaccine. The cystine receptor belongs to the type 2 periplasmic binding fold protein superfamily (PBP2). The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270427 [Multi-domain]  Cd Length: 227  Bit Score: 41.57  E-value: 8.39e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 463 NERFEGFCVDMLRELAELLRfryrlrlvedglYGAPEPNGSWTGMVGELiNRQKADLAVAAFTITAEREKVIDFSKPFMT 542
Cdd:cd13709    19 NGKLKGFEVDVWNAIGKRTG------------YKVEFVTADFSGLFGML-DSGKVDTIANQITITPERQEKYDFSEPYVY 85
                          90
                  ....*....|....
gi 1720420912 543 LGISILyrVHMGRK 556
Cdd:cd13709    86 DGAQIV--VKKDNN 97
PBP1_NPR_GC-like cd06352
ligand-binding domain of membrane guanylyl-cyclase receptors; Ligand-binding domain of ...
144-404 8.46e-04

ligand-binding domain of membrane guanylyl-cyclase receptors; Ligand-binding domain of membrane guanylyl-cyclase receptors. Membrane guanylyl cyclases (GC) have a single membrane-spanning region and are activated by endogenous and exogenous peptides. This family can be divided into three major subfamilies: the natriuretic peptide receptors (NPRs), sensory organ-specific membrane GCs, and the enterotoxin/guanylin receptors. The binding of peptide ligands to the receptor results in the activation of the cytosolic catalytic domain. Three types of NPRs have been cloned from mammalian tissues: NPR-A/GC-A, NPR-B/ GC-B, and NPR-C. In addition, two of the GCs, GC-D and GC-G, appear to be pseudogenes in humans. Atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) are produced in the heart, and both bind to the NPR-A. NPR-C, also termed the clearance receptor, binds each of the natriuretic peptides and can alter circulating levels of these peptides. The ligand binding domain of the NPRs exhibits strong structural similarity to the type 1 periplasmic binding fold protein family.


Pssm-ID: 380575 [Multi-domain]  Cd Length: 391  Bit Score: 42.34  E-value: 8.46e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 144 DVSLAVSRILKSFNYPSASLICAKAE--CLLRLEELVRGFL-ISKETLSVRMLDDSRDPTP---LLKEIRddKVSTIIId 217
Cdd:cd06352   124 SLAEALLALLKQFNWKRAAIIYSDDDskCFSIANDLEDALNqEDNLTISYYEFVEVNSDSDyssILQEAK--KRARIIV- 200
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 218 anaSISHLVLRlslnlssplgfpRSLplglscVLQASELGMTSAFYKYIL-----TTMDFPILHL----DGIVEDS---- 284
Cdd:cd06352   201 ---LCFDSETV------------RQF------MLAAHDLGMTNGEYVFIFielfkDGFGGNSTDGwernDGRDEDAkqay 259
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 285 SNILGFSMFNTSHPFYPEF---VRSLNMSWRENCEASTYPGPALSAALMFDAVHVVVSAvreLNRSQEIGVKPlactsan 361
Cdd:cd06352   260 ESLLVISLSRPSNPEYDNFskeVKARAKEPPFYCYDASEEEVSPYAAALYDAVYLYALA---LNETLAEGGNY------- 329
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|....
gi 1720420912 362 iwPHGTSLMNYLRMVEYDGLTGRVEFNSKGQR-TNYTLRILEKS 404
Cdd:cd06352   330 --RNGTAIAQRMWNRTFQGITGPVTIDSNGDRdPDYALLDLDPS 371
PBP2_BvgS_HisK_like cd01007
The type 2 periplasmic ligand-binding protein domain of the sensor-kinase BvgS and histidine ...
455-547 1.24e-03

The type 2 periplasmic ligand-binding protein domain of the sensor-kinase BvgS and histidine kinase receptors, and related proteins; This family comprises the periplasmic sensor domain of the two-component sensor-kinase systems, such as the sensor protein BvgS of Bordetella pertussis and histidine kinase receptors (HisK), and uncharacterized related proteins. Typically, the two-component system consists of a membrane spanning sensor-kinase and a cytoplasmic response regulator. It serves as a stimulus-response coupling mechanism to enable microorganisms to sense and respond to changes in environmental conditions. The N-terminal sensing domain of the sensor kinase detects extracellular signals, such as small molecule ligands and ions, which then modulate the catalytic activity of the cytoplasmic kinase domain through a phosphorylation cascade. The periplasmic sensor domain belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270228 [Multi-domain]  Cd Length: 220  Bit Score: 40.98  E-value: 1.24e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 455 PNFQALSGNERFEGFCVDMLRELAELLrfryrlrlvedGLYGAPEPNGSWTGMVgELINRQKADLaVAAFTITAEREKVI 534
Cdd:cd01007    13 PPFEFIDEGGEPQGIAADYLKLIAKKL-----------GLKFEYVPGDSWSELL-EALKAGEIDL-LSSVSKTPEREKYL 79
                          90
                  ....*....|...
gi 1720420912 535 DFSKPFMTLGISI 547
Cdd:cd01007    80 LFTKPYLSSPLVI 92
PBP2_mlr5654_like cd13702
Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporter-like; the ...
504-542 1.35e-03

Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporter-like; the type 2 periplasmic-binding protein fold; This group includes uncharacterized periplasmic substrate-binding protein similar to HisJ and LAO proteins which serve as initial receptors in the ABC transport of histidine-, arginine, and lysine-arginine-ornithine amino acids. This group belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270420 [Multi-domain]  Cd Length: 223  Bit Score: 40.77  E-value: 1.35e-03
                          10        20        30
                  ....*....|....*....|....*....|....*....
gi 1720420912 504 WTGMVGELINrQKADLAVAAFTITAEREKVIDFSKPFMT 542
Cdd:cd13702    50 WDGIIPALQA-KKFDAIIASMSITPERKKQVDFTDPYYT 87
PBP2_ml15202_like cd13701
Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporter-like; the ...
449-540 1.43e-03

Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporter-like; the type 2 periplasmic-binding protein fold; This group includes uncharacterized periplasmic substrate-binding protein similar to HisJ and LAO proteins which are involved in the ABC transport of histidine-, arginine, and lysine-arginine-ornithine amino acids. This group belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270419 [Multi-domain]  Cd Length: 227  Bit Score: 40.91  E-value: 1.43e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 449 PYvmrrPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVedglygapepngSWTGMVGELiNRQKADLAVAAFTITA 528
Cdd:cd13701    12 PY----PPFTSKDASGKWSGWEIDLIDALCARLDARCEITPV------------AWDGIIPAL-QSGKIDMIWNSMSITD 74
                          90
                  ....*....|..
gi 1720420912 529 EREKVIDFSKPF 540
Cdd:cd13701    75 ERKKVIDFSDPY 86
PBP1_GABAb_receptor cd06366
ligand-binding domain of GABAb receptors, which are metabotropic transmembrane receptors for ...
295-417 2.15e-03

ligand-binding domain of GABAb receptors, which are metabotropic transmembrane receptors for gamma-aminobutyric acid (GABA); Ligand-binding domain of GABAb receptors, which are metabotropic transmembrane receptors for gamma-aminobutyric acid (GABA). GABA is the major inhibitory neurotransmitter in the mammalian CNS and, like glutamate and other transmitters, acts via both ligand gated ion channels (GABAa receptors) and G-protein coupled receptors (GABAb receptor or GABAbR). GABAa receptors are members of the ionotropic receptor superfamily which includes alpha-adrenergic and glycine receptors. The GABAb receptor is a member of a receptor superfamily which includes the mGlu receptors. The GABAb receptor is coupled to G alpha-i proteins, and activation causes a decrease in calcium, an increase in potassium membrane conductance, and inhibition of cAMP formation. The response is thus inhibitory and leads to hyperpolarization and decreased neurotransmitter release, for example.


Pssm-ID: 380589 [Multi-domain]  Cd Length: 404  Bit Score: 41.08  E-value: 2.15e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 295 TSHPFYPEFVRSLNMswrENCEASTYpgpalsAALMFDAVHVVVSAVRELNRSQEIGVKPLACTSANIWPHGTSLMNYLR 374
Cdd:cd06366   276 TAQEFLKEYLERLSN---SNYTGSPY------APFAYDAVWAIALALNKTIEKLAEYNKTLEDFTYNDKEMADLFLEAMN 346
                          90       100       110       120
                  ....*....|....*....|....*....|....*....|...
gi 1720420912 375 MVEYDGLTGRVEFNSKGQRTnYTLRILEKSRQGHREIGVWYSN 417
Cdd:cd06366   347 STSFEGVSGPVSFDSKGDRL-GTVDIEQLQGGSYVKVGLYDPN 388
PBP2_YfhD_N cd01009
The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold ...
510-542 2.42e-03

The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold protein superfamily; This subfamily includes the solute binding domain YfhD_N. These domains are found in the YfhD proteins that are predicted to function as lytic transglycosylases that cleave the glycosidic bond between N-acetylmuramic acid and N-acetylglucosamin in peptidoglycan, while the YfhD_N domain might act as an auxiliary or regulatory subunit. In addition to periplasmic solute binding domain, they have an SLT domain, typically found in soluble lytic transglycosylases, and a C-terminal low complexity domain. The YfhD proteins might have been recruited to create localized cell wall openings required for transport of large substrates such as DNA. They belong to the PBP2 superfamily of periplasmic binding proteins that differ in size and ligand specificity, but have similar tertiary structures consisting of two globular subdomains connected by a flexible hinge. They have been shown to bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap.


Pssm-ID: 270230 [Multi-domain]  Cd Length: 223  Bit Score: 39.89  E-value: 2.42e-03
                          10        20        30
                  ....*....|....*....|....*....|...
gi 1720420912 510 ELINRQKADLAVAAFTITAEREKVIDFSKPFMT 542
Cdd:cd01009    53 EALEEGKGDLAAAGLTITPERKKKVDFSFPYYY 85
PBP2_GlnP cd13619
Glutamine-binding domain of ABC transporter, a member of the type 2 periplasmic binding fold ...
517-547 2.45e-03

Glutamine-binding domain of ABC transporter, a member of the type 2 periplasmic binding fold protein superfamily; Periplasmic glutamine binding domain GlnP serves as an initial receptor in the ABC transport of glutamine in eubacteria. GlnP belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270337 [Multi-domain]  Cd Length: 220  Bit Score: 39.99  E-value: 2.45e-03
                          10        20        30
                  ....*....|....*....|....*....|.
gi 1720420912 517 ADLAVAAFTITAEREKVIDFSKPFMTLGISI 547
Cdd:cd13619    60 ADGVIAGMSITDERKKTFDFSDPYYDSGLVI 90
PBP2_ArtJ_like cd13697
Putative substrate-binding domain of ABC arginine transporter; the type 2 periplasmic-binding ...
431-548 4.96e-03

Putative substrate-binding domain of ABC arginine transporter; the type 2 periplasmic-binding protein fold; The ArtJ domain belongs to the type 2 periplasmic binding protein fold superfamily (PBP2), whose many members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. The PBP2 proteins are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270415 [Multi-domain]  Cd Length: 228  Bit Score: 39.05  E-value: 4.96e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 431 LSQTLANKTLVVTTileNPYVmrrPNFQALSGNERFEGFCVDMLRELAELLRFRYRLRLVedglygapepngSWTGMVGE 510
Cdd:cd13697     1 LDEILASKKLVVGV---NPNL---PPLGAYDDKNVIEGFDVDVAKKLADRLGVKLELVPV------------SSADRVPF 62
                          90       100       110
                  ....*....|....*....|....*....|....*...
gi 1720420912 511 LINrQKADLAVAAFTITAEREKVIDFSKPFMTLGISIL 548
Cdd:cd13697    63 LMA-GKIDAVLGGLTRTPDRAKVIDFSDPVNTEVLGIL 99
PRK11917 PRK11917
bifunctional adhesin/ABC transporter aspartate/glutamate-binding protein; Reviewed
509-564 6.59e-03

bifunctional adhesin/ABC transporter aspartate/glutamate-binding protein; Reviewed


Pssm-ID: 183381 [Multi-domain]  Cd Length: 259  Bit Score: 38.75  E-value: 6.59e-03
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*.
gi 1720420912 509 GELINRQKADLAVAAFTITAEREKVIDFSKPFMTLGISILYRvhmgRKPGYFSFLD 564
Cdd:PRK11917   94 GPLLDNGSVDAVIATFTITPERKRIYNFSEPYYQDAIGLLVL----KEKNYKSLAD 145
PBP2_BvgS_D2 cd13707
The second of the two tandem periplasmic domains of sensor-kinase BvgS; the type 2 ...
463-542 7.17e-03

The second of the two tandem periplasmic domains of sensor-kinase BvgS; the type 2 peripasmic-binding fold protein; This group contains the second domain of the periplasmic solute-binding domains of BvgS and related proteins. BvgS is composed of two periplasmic domains homologous to bacterial periplasmic-binding proteins (PBPs), a transmembrane region followed successively by a cytoplasmic PAS (Per/ARNT/SIM), a Histidine-kinase (HK), a receiver and a Histidine phosphotransfer (Hpt) domains. The sensor protein BvgS can autophosphorylate and phosphorylate the response regulator BvgA. The BvgAS phosphorelay controls the expression of virulence factors in response to certain environmental stimuli in Bordetella pertussis. Its close homologs, Escherichia coli EvgS and Klebsiella pneumoniae KvgS, appear to be involved in the transcriptional regulation of drug efflux pumps and in countering free radical stresses and sensing iron limiting conditions, respectively. The periplasmic sensor domain of BvgS belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270425 [Multi-domain]  Cd Length: 221  Bit Score: 38.35  E-value: 7.17e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720420912 463 NERFEGFCVDMLRELAELLrfryrlrlvedGLYGAPEPNGSWTGMVgELINRQKADLAvAAFTITAEREKVIDFSKPFMT 542
Cdd:cd13707    21 NGQFRGISADLLELISLRT-----------GLRFEVVRASSPAEMI-EALRSGEADMI-AALTPSPEREDFLLFTRPYLT 87
MltF COG4623
Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, ...
510-550 7.79e-03

Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, Signal transduction mechanisms];


Pssm-ID: 443662 [Multi-domain]  Cd Length: 421  Bit Score: 39.27  E-value: 7.79e-03
                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 1720420912 510 ELINRQKADLAVAAFTITAEREKVIDFSKPFMTLGISILYR 550
Cdd:COG4623    74 PALNAGEGDIAAAGLTITPERKKQVRFSPPYYSVSQVLVYR 114
PBP2_AA_binding_like_2 cd13627
Substrate-binding domain of putative amino acid-binding protein; the type 2 ...
503-540 8.54e-03

Substrate-binding domain of putative amino acid-binding protein; the type 2 periplasmic-binding protein fold; This putative amino acid-binding protein belongs to the type 2 periplasmic-binding fold protein (PBP2) superfamily, whose members are involved in chemotaxis and uptake of nutrients and other small molecules from the extracellular space as a primary receptor. PBP2 typically comprises of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two receptor cytoplasmically-located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 270345 [Multi-domain]  Cd Length: 243  Bit Score: 38.54  E-value: 8.54e-03
                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 1720420912 503 SWTGMVGELiNRQKADLAVAAFTITAEREKVIDFSKPF 540
Cdd:cd13627    60 EWNGLIPAL-NSGDIDLIIAGMSKTPEREKTIDFSDPY 96
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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