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Conserved domains on  [gi|494456633|ref|WP_007246454|]
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MULTISPECIES: LysR family transcriptional regulator [Pseudomonas syringae group]

Protein Classification

LysR family transcriptional regulator( domain architecture ID 11426483)

LysR family transcriptional regulator containing an N-terminal HTH (helix-turn-helix) DNA-binding domain and a C-terminal substrate binding domain, which is structurally homologous to the type 2 periplasmic-binding (PBP2) fold proteins

CATH:  3.40.190.10
Gene Ontology:  GO:0003700|GO:0003677|GO:0006355
SCOP:  4000316

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
LysR COG0583
DNA-binding transcriptional regulator, LysR family [Transcription];
1-284 7.20e-45

DNA-binding transcriptional regulator, LysR family [Transcription];


:

Pssm-ID: 440348 [Multi-domain]  Cd Length: 256  Bit Score: 152.33  E-value: 7.20e-45
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:COG0583    1 MDLRQLRAFVAVAEEGSFTAAAERLGVSQPAVSRQIRRLEEELGVPLFERTGRGLRLTEAGERLLERARRILAELEEAEA 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  81 ATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAE--DRLVD-LVEEQFDVTIRINPDPDSSLVGRCF 157
Cdd:COG0583   81 ELRALRGGPRGTLRIGAPPSLARYLLPPLLARFRARHPGVRLELREGnsDRLVDaLLEGELDLAIRLGPPPDPGLVARPL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 158 ARDRLIVVAAPELPrpmpgAVRQTPAivtssfqpthwklddghlvlepipklwFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:COG0583  161 GEERLVLVASPDHP-----LARRAPL---------------------------VNSLEALLAAVAAGLGIALLPRFLAAD 208
                        250       260       270       280
                 ....*....|....*....|....*....|....*....|....*...
gi 494456633 238 QLARGELVQWGTISGAQP-ELWVLHTSRRLVSPKVRAFVDFICASYPD 284
Cdd:COG0583  209 ELAAGRLVALPLPDPPPPrPLYLVWRRRRHLSPAVRAFLDFLREALAE 256
 
Name Accession Description Interval E-value
LysR COG0583
DNA-binding transcriptional regulator, LysR family [Transcription];
1-284 7.20e-45

DNA-binding transcriptional regulator, LysR family [Transcription];


Pssm-ID: 440348 [Multi-domain]  Cd Length: 256  Bit Score: 152.33  E-value: 7.20e-45
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:COG0583    1 MDLRQLRAFVAVAEEGSFTAAAERLGVSQPAVSRQIRRLEEELGVPLFERTGRGLRLTEAGERLLERARRILAELEEAEA 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  81 ATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAE--DRLVD-LVEEQFDVTIRINPDPDSSLVGRCF 157
Cdd:COG0583   81 ELRALRGGPRGTLRIGAPPSLARYLLPPLLARFRARHPGVRLELREGnsDRLVDaLLEGELDLAIRLGPPPDPGLVARPL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 158 ARDRLIVVAAPELPrpmpgAVRQTPAivtssfqpthwklddghlvlepipklwFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:COG0583  161 GEERLVLVASPDHP-----LARRAPL---------------------------VNSLEALLAAVAAGLGIALLPRFLAAD 208
                        250       260       270       280
                 ....*....|....*....|....*....|....*....|....*...
gi 494456633 238 QLARGELVQWGTISGAQP-ELWVLHTSRRLVSPKVRAFVDFICASYPD 284
Cdd:COG0583  209 ELAAGRLVALPLPDPPPPrPLYLVWRRRRHLSPAVRAFLDFLREALAE 256
PRK14997 PRK14997
LysR family transcriptional regulator; Provisional
1-285 2.26e-39

LysR family transcriptional regulator; Provisional


Pssm-ID: 184959 [Multi-domain]  Cd Length: 301  Bit Score: 139.74  E-value: 2.26e-39
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:PRK14997   2 TDLNDFAWFVHVVEEGGFAAAGRALDEPKSKLSRRIAQLEERLGVRLIQRTTRQFNVTEVGQTFYEHCKAMLVEAQAAQD 81
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  81 ATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDP--DSSLVGRCFA 158
Cdd:PRK14997  82 AIAALQVEPRGIVKLTCPVTLLHVHIGPMLAKFMARYPDVSLQLEATNRRVDVVGEGVDVAIRVRPRPfeDSDLVMRVLA 161
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 159 RDRLIVVAAPEL----PRP-MPGAVRQTPAIVTSSFQPTH-WKL---DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAAL 229
Cdd:PRK14997 162 DRGHRLFASPDLiarmGIPsAPAELSHWPGLSLASGKHIHrWELygpQGARAEVHFTPRMITTDMLALREAAMAGVGLVQ 241
                        250       260       270       280       290
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 494456633 230 IPQSIAWSQLARGELVQwgTISGAQPELWVLHT---SRRLVSPKVRAFVDFICASYPDM 285
Cdd:PRK14997 242 LPVLMVKEQLAAGELVA--VLEEWEPRREVIHAvfpSRRGLLPSVRALVDFLTEEYARM 298
PBP2_CrgA_like cd08422
The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA and its ...
91-278 9.33e-39

The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA and its related homologs, contains the type 2 periplasmic binding domain; This CD includes the substrate binding domain of LysR-type transcriptional regulator (LTTR) CrgA and its related homologs. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis further showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176114 [Multi-domain]  Cd Length: 197  Bit Score: 134.88  E-value: 9.33e-39
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPEL 170
Cdd:cd08422    1 GRLRISAPVSFGRLHLAPLLAEFLARYPDVRLELVLSDRLVDLVEEGFDLAIRIGELPDSSLVARRLGPVRRVLVASPAY 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 171 --PRPMPgavrQTPA--------IVTSSFQPTHWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQ 238
Cdd:cd08422   81 laRHGTP----QTPEdlarhrclGYRLPGRPLRWRFrrGGGEVEVRVRGRLVVNDGEALRAAALAGLGIALLPDFLVAED 156
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....
gi 494456633 239 LARGELVQ----WgtiSGAQPELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08422  157 LASGRLVRvlpdW---RPPPLPIYAVYPSRRHLPAKVRAFIDFL 197
LysR_substrate pfam03466
LysR substrate binding domain; The structure of this domain is known and is similar to the ...
90-278 5.84e-18

LysR substrate binding domain; The structure of this domain is known and is similar to the periplasmic binding proteins. This domain binds a variety of ligands that caries in size and structure, such as amino acids, sugar phosphates, organic acids, metal cations, flavonoids, C6-ring carboxylic acids, H2O2, HOCl, homocysteine, NADPH, ATP, sulphate, muropeptides, acetate, salicylate, citrate, phenol- and quinolone derivatives, acetylserines, fatty acid CoA, shikimate, chorismate, homocysteine, indole-3-acetic acid, Na(I), c-di-GMP, ppGpp and hydrogen peroxide (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).


Pssm-ID: 460931 [Multi-domain]  Cd Length: 205  Bit Score: 80.03  E-value: 5.84e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   90 RGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAED--RLVDLVEE-QFDVTIRINPDPDSSLVGRCFARDRLIVVA 166
Cdd:pfam03466   1 SGRLRIGAPPTLASYLLPPLLARFRERYPDVELELTEGNseELLDLLLEgELDLAIRRGPPDDPGLEARPLGEEPLVLVA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  167 APELP----RPM-PGAVRQTPAIVTSSFQPTHWKLDD--GHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQL 239
Cdd:pfam03466  81 PPDHPlargEPVsLEDLADEPLILLPPGSGLRDLLDRalRAAGLRPRVVLEVNSLEALLQLVAAGLGIALLPRSAVAREL 160
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 494456633  240 ARGELVQWgTISGAQP--ELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:pfam03466 161 ADGRLVAL-PLPEPPLprELYLVWRKGRPLSPAVRAFIEFL 200
 
Name Accession Description Interval E-value
LysR COG0583
DNA-binding transcriptional regulator, LysR family [Transcription];
1-284 7.20e-45

DNA-binding transcriptional regulator, LysR family [Transcription];


Pssm-ID: 440348 [Multi-domain]  Cd Length: 256  Bit Score: 152.33  E-value: 7.20e-45
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:COG0583    1 MDLRQLRAFVAVAEEGSFTAAAERLGVSQPAVSRQIRRLEEELGVPLFERTGRGLRLTEAGERLLERARRILAELEEAEA 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  81 ATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAE--DRLVD-LVEEQFDVTIRINPDPDSSLVGRCF 157
Cdd:COG0583   81 ELRALRGGPRGTLRIGAPPSLARYLLPPLLARFRARHPGVRLELREGnsDRLVDaLLEGELDLAIRLGPPPDPGLVARPL 160
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 158 ARDRLIVVAAPELPrpmpgAVRQTPAivtssfqpthwklddghlvlepipklwFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:COG0583  161 GEERLVLVASPDHP-----LARRAPL---------------------------VNSLEALLAAVAAGLGIALLPRFLAAD 208
                        250       260       270       280
                 ....*....|....*....|....*....|....*....|....*...
gi 494456633 238 QLARGELVQWGTISGAQP-ELWVLHTSRRLVSPKVRAFVDFICASYPD 284
Cdd:COG0583  209 ELAAGRLVALPLPDPPPPrPLYLVWRRRRHLSPAVRAFLDFLREALAE 256
PRK14997 PRK14997
LysR family transcriptional regulator; Provisional
1-285 2.26e-39

LysR family transcriptional regulator; Provisional


Pssm-ID: 184959 [Multi-domain]  Cd Length: 301  Bit Score: 139.74  E-value: 2.26e-39
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:PRK14997   2 TDLNDFAWFVHVVEEGGFAAAGRALDEPKSKLSRRIAQLEERLGVRLIQRTTRQFNVTEVGQTFYEHCKAMLVEAQAAQD 81
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  81 ATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDP--DSSLVGRCFA 158
Cdd:PRK14997  82 AIAALQVEPRGIVKLTCPVTLLHVHIGPMLAKFMARYPDVSLQLEATNRRVDVVGEGVDVAIRVRPRPfeDSDLVMRVLA 161
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 159 RDRLIVVAAPEL----PRP-MPGAVRQTPAIVTSSFQPTH-WKL---DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAAL 229
Cdd:PRK14997 162 DRGHRLFASPDLiarmGIPsAPAELSHWPGLSLASGKHIHrWELygpQGARAEVHFTPRMITTDMLALREAAMAGVGLVQ 241
                        250       260       270       280       290
                 ....*....|....*....|....*....|....*....|....*....|....*....
gi 494456633 230 IPQSIAWSQLARGELVQwgTISGAQPELWVLHT---SRRLVSPKVRAFVDFICASYPDM 285
Cdd:PRK14997 242 LPVLMVKEQLAAGELVA--VLEEWEPRREVIHAvfpSRRGLLPSVRALVDFLTEEYARM 298
PBP2_CrgA_like cd08422
The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA and its ...
91-278 9.33e-39

The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA and its related homologs, contains the type 2 periplasmic binding domain; This CD includes the substrate binding domain of LysR-type transcriptional regulator (LTTR) CrgA and its related homologs. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis further showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176114 [Multi-domain]  Cd Length: 197  Bit Score: 134.88  E-value: 9.33e-39
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPEL 170
Cdd:cd08422    1 GRLRISAPVSFGRLHLAPLLAEFLARYPDVRLELVLSDRLVDLVEEGFDLAIRIGELPDSSLVARRLGPVRRVLVASPAY 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 171 --PRPMPgavrQTPA--------IVTSSFQPTHWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQ 238
Cdd:cd08422   81 laRHGTP----QTPEdlarhrclGYRLPGRPLRWRFrrGGGEVEVRVRGRLVVNDGEALRAAALAGLGIALLPDFLVAED 156
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....
gi 494456633 239 LARGELVQ----WgtiSGAQPELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08422  157 LASGRLVRvlpdW---RPPPLPIYAVYPSRRHLPAKVRAFIDFL 197
PBP2_CrgA_like_4 cd08473
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
89-277 1.42e-26

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 4. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176162 [Multi-domain]  Cd Length: 202  Bit Score: 103.02  E-value: 1.42e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  89 PRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRI--NPDPDSSLVGRCFARDRLIVVA 166
Cdd:cd08473    1 PRGTVRVSCPPALAQELLAPLLPRFMAAYPQVRLQLEATNRRVDLIEEGIDVALRVrfPPLEDSSLVMRVLGQSRQRLVA 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 167 APEL----PRPM-PGAVRQTPAIVTSSFQPTH-WKL--DDGHLVLEPI-PKLWFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:cd08473   81 SPALlarlGRPRsPEDLAGLPTLSLGDVDGRHsWRLegPDGESITVRHrPRLVTDDLLTLRQAALAGVGIALLPDHLCRE 160
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*..
gi 494456633 238 QLARGELV----QWGTISGaqpelwVLH---TSRRLVSPKVRAFVDF 277
Cdd:cd08473  161 ALRAGRLVrvlpDWTPPRG------IVHavfPSRRGLLPAVRALIDF 201
PBP2_CrgA_like_8 cd08477
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-278 2.16e-22

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 8. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176166  Cd Length: 197  Bit Score: 91.91  E-value: 2.16e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE- 169
Cdd:cd08477    1 GKLRISAPVTFGSHVLTPALAEYLARYPDVRVDLVLSDRLVDLVEEGFDAAFRIGELADSSLVARPLAPYRMVLCASPDy 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 LPR-PMPGAVRQTPAIVTSSFQPTH----WKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQLARG 242
Cdd:cd08477   81 LARhGTPTTPEDLARHECLGFSYWRarnrWRLegPGGEVKVPVSGRLTVNSGQALRVAALAGLGIVLQPEALLAEDLASG 160
                        170       180       190
                 ....*....|....*....|....*....|....*....
gi 494456633 243 ELVQwgTISGAQPE---LWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08477  161 RLVE--LLPDYLPPprpMHLLYPPDRRPTPKLRSFIDFL 197
PBP2_CrgA_like_2 cd08471
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-277 4.40e-21

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 2. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176160  Cd Length: 201  Bit Score: 88.35  E-value: 4.40e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPEL 170
Cdd:cd08471    1 GLLTVTAPVLFGRLHVLPIITDFLDAYPEVSVRLLLLDRVVNLLEEGVDVAVRIGHLPDSSLVATRVGSVRRVVCASPAY 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 171 ----PRPM-PGAVRQTPAIVTSS-FQPTHWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGG-GAALIPQSIAwSQLAR 241
Cdd:cd08471   81 larhGTPKhPDDLADHDCIAFTGlSPAPEWRFreGGKERSVRVRPRLTVNTVEAAIAAALAGLgLTRVLSYQVA-EELAA 159
                        170       180       190
                 ....*....|....*....|....*....|....*....
gi 494456633 242 GELVQwgTISGAQPELW---VLHTSRRLVSPKVRAFVDF 277
Cdd:cd08471  160 GRLQR--VLEDFEPPPLpvhLVHPEGRLAPAKVRAFVDF 196
PBP2_CrgA_like_5 cd08474
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
89-278 7.18e-20

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 5. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176163 [Multi-domain]  Cd Length: 202  Bit Score: 85.21  E-value: 7.18e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  89 PRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARD-RLIVVAA 167
Cdd:cd08474    1 PAGTLRINAPRVAARLLLAPLLARFLARYPDIRLELVVDDGLVDIVAEGFDAGIRLGESVEKDMVAVPLGPPlRMAVVAS 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 168 PEL----PRP-MPGAVRQTPAIV---TSSFQPTHWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:cd08474   81 PAYlarhGTPeHPRDLLNHRCIRyrfPTSGALYRWEFerGGRELEVDVEGPLILNDSDLMLDAALDGLGIAYLFEDLVAE 160
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*
gi 494456633 238 QLARGELVQ----WgtiSGAQPELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08474  161 HLASGRLVRvledW---SPPFPGGYLYYPSRRRVPPALRAFIDFL 202
PBP2_CrgA cd08478
The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA, contains ...
89-278 8.56e-19

The C-terminal substrate binding domain of LysR-type transcriptional regulator CrgA, contains the type 2 periplasmic binding domain; This CD represents the substrate binding domain of LysR-type transcriptional regulator (LTTR) CrgA. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis further showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176167 [Multi-domain]  Cd Length: 199  Bit Score: 82.39  E-value: 8.56e-19
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  89 PRGRLRV--ASPVLFSQLAmgRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVA 166
Cdd:cd08478    1 PSGLLRVdaATPFVLHLLA--PLIAKFRERYPDIELELVSNEGIIDLIERKTDVAIRIGELTDSTLHARPLGKSRLRILA 78
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 167 APE-LPRpmpgavRQTPAIVTS-------SF-QPTH---WKLDDG-HLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQS 233
Cdd:cd08478   79 SPDyLAR------HGTPQSIEDlaqhqllGFtEPASlntWPIKDAdGNLLKIQPTITASSGETLRQLALSGCGIACLSDF 152
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*...
gi 494456633 234 IAWSQLARGELVQW---GTISGAQPeLWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08478  153 MTDKDIAEGRLIPLfaeQTSDVRQP-INAVYYRNTALSLRIRCFIDFL 199
LysR_substrate pfam03466
LysR substrate binding domain; The structure of this domain is known and is similar to the ...
90-278 5.84e-18

LysR substrate binding domain; The structure of this domain is known and is similar to the periplasmic binding proteins. This domain binds a variety of ligands that caries in size and structure, such as amino acids, sugar phosphates, organic acids, metal cations, flavonoids, C6-ring carboxylic acids, H2O2, HOCl, homocysteine, NADPH, ATP, sulphate, muropeptides, acetate, salicylate, citrate, phenol- and quinolone derivatives, acetylserines, fatty acid CoA, shikimate, chorismate, homocysteine, indole-3-acetic acid, Na(I), c-di-GMP, ppGpp and hydrogen peroxide (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).


Pssm-ID: 460931 [Multi-domain]  Cd Length: 205  Bit Score: 80.03  E-value: 5.84e-18
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   90 RGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAED--RLVDLVEE-QFDVTIRINPDPDSSLVGRCFARDRLIVVA 166
Cdd:pfam03466   1 SGRLRIGAPPTLASYLLPPLLARFRERYPDVELELTEGNseELLDLLLEgELDLAIRRGPPDDPGLEARPLGEEPLVLVA 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  167 APELP----RPM-PGAVRQTPAIVTSSFQPTHWKLDD--GHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQL 239
Cdd:pfam03466  81 PPDHPlargEPVsLEDLADEPLILLPPGSGLRDLLDRalRAAGLRPRVVLEVNSLEALLQLVAAGLGIALLPRSAVAREL 160
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 494456633  240 ARGELVQWgTISGAQP--ELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:pfam03466 161 ADGRLVAL-PLPEPPLprELYLVWRKGRPLSPAVRAFIEFL 200
PBP2_CrgA_like_3 cd08472
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-276 2.45e-17

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 3. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176161  Cd Length: 202  Bit Score: 78.32  E-value: 2.45e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE- 169
Cdd:cd08472    1 GRLRVDVPGSLARLLLIPALPDFLARYPDIELDLGVSDRPVDLIREGVDCVIRVGELADSSLVARRLGELRMVTCASPAy 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 -----LPRpMPGAVRQTPAI---VTSSFQPTHWKL-DDGHLVLEPIPklwfsSLMMVRDAAVAGGGAAL------IPQSI 234
Cdd:cd08472   81 larhgTPR-HPEDLERHRAVgyfSARTGRVLPWEFqRDGEEREVKLP-----SRVSVNDSEAYLAAALAglgiiqVPRFM 154
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....*
gi 494456633 235 AWSQLARGELVQwgTISGAQPE---LWVLHTSRRLVSPKVRAFVD 276
Cdd:cd08472  155 VRPHLASGRLVE--VLPDWRPPplpVSLLYPHRRHLSPRVRVFVD 197
PBP2_CrgA_like_7 cd08476
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-278 4.55e-17

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 7. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176165  Cd Length: 197  Bit Score: 77.67  E-value: 4.55e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLfSQLAMGRIgAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE- 169
Cdd:cd08476    1 GRLRVSLPLV-GGLLLPVL-AAFMQRYPEIELDLDFSDRLVDVIDEGFDAVIRTGELPDSRLMSRRLGSFRMVLVASPDy 78
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 -----LPRpMPGAVRQTPAI-----VTSSFQPthWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWS 237
Cdd:cd08476   79 larhgTPE-TPADLAEHACLryrfpTTGKLEP--WPLrgDGGDPELRLPTALVCNNIEALIEFALQGLGIACLPDFSVRE 155
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|..
gi 494456633 238 QLARGELVQ-WGTISGAQPELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08476  156 ALADGRLVTvLDDYVEERGQFRLLWPSSRHLSPKLRVFVDFM 197
PBP2_CrgA_like_6 cd08475
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-276 1.80e-16

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 6. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176164 [Multi-domain]  Cd Length: 199  Bit Score: 76.05  E-value: 1.80e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDS-SLVGRCFARDRLIVVAAPE 169
Cdd:cd08475    1 GRLRIDLPVAFGRLCVAPLLLELARRHPELELELSFSDRFVDLIEEGIDLAVRIGELADStGLVARRLGTQRMVLCASPA 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 ------LPRpMPGAVRQTPAIV---TSSFQPTHWKLDDGHLV-LEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQL 239
Cdd:cd08475   81 ylarhgTPR-TLEDLAEHQCIAygrGGQPLPWRLADEQGRLVrFRPAPRLQFDDGEAIADAALAGLGIAQLPTWLVADHL 159
                        170       180       190
                 ....*....|....*....|....*....|....*...
gi 494456633 240 ARGELVQ-WGTISGAQPELWVLHTSRRLVSPKVRAFVD 276
Cdd:cd08475  160 QRGELVEvLPELAPEGLPIHAVWPRTRHLPPKVRAAVD 197
PBP2_CrgA_like_9 cd08479
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-278 5.01e-16

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 9. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176168 [Multi-domain]  Cd Length: 198  Bit Score: 74.56  E-value: 5.01e-16
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE- 169
Cdd:cd08479    1 GLLRVNASFGFGRRHIAPALSDFAKRYPELEVQLELTDRPVDLVEEGFDLDIRVGDLPDSSLIARKLAPNRRILCASPAy 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 -----LPRpMPGAVRQTPAIVT----SSFqpTHWKL--DDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQ 238
Cdd:cd08479   81 lerhgAPA-SPEDLARHDCLVIrendEDF--GLWRLrnGDGEATVRVRGALSSNDGEVVLQWALDGHGIILRSEWDVAPY 157
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|....
gi 494456633 239 LARGELV----QWgtiSGAQPELWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08479  158 LRSGRLVrvlpDW---QLPDADIWAVYPSRLSRSARVRVFVDFL 198
HTH_1 pfam00126
Bacterial regulatory helix-turn-helix protein, lysR family;
3-62 6.43e-16

Bacterial regulatory helix-turn-helix protein, lysR family;


Pssm-ID: 459683 [Multi-domain]  Cd Length: 60  Bit Score: 70.49  E-value: 6.43e-16
                          10        20        30        40        50        60
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633    3 LNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGE 62
Cdd:pfam00126   1 LRQLRLFVAVAETGSFTAAAERLGLSQPAVSRQIKRLEEELGVPLFERTTRGVRLTEAGE 60
PRK11139 PRK11139
DNA-binding transcriptional activator GcvA; Provisional
3-278 2.42e-15

DNA-binding transcriptional activator GcvA; Provisional


Pssm-ID: 182990 [Multi-domain]  Cd Length: 297  Bit Score: 74.49  E-value: 2.42e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   3 LNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTAT 82
Cdd:PRK11139   8 LNALRAFEAAARHLSFTRAAEELFVTQAAVSHQIKALEDFLGLKLFRRRNRSLLLTEEGQRYFLDIREIFDQLAEATRKL 87
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  83 RDGVAtpRGRLRVASPVLF-SQLAMGRIGAgFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDR 161
Cdd:PRK11139  88 RARSA--KGALTVSLLPSFaIQWLVPRLSS-FNEAHPDIDVRLKAVDRLEDFLRDDVDVAIRYGRGNWPGLRVEKLLDEY 164
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 162 LIVVAAPEL-----PRPMPGAVRQTPAIVTSSfqPTHWKLDDGHLVLEPIP---KLWFSSLMMVRDAAVAGGGAALIPQS 233
Cdd:PRK11139 165 LLPVCSPALlnggkPLKTPEDLARHTLLHDDS--REDWRAWFRAAGLDDLNvqqGPIFSHSSMALQAAIHGQGVALGNRV 242
                        250       260       270       280
                 ....*....|....*....|....*....|....*....|....*.
gi 494456633 234 IAWSQLARGELVQWGTISGAQPE-LWVLHTSRRLVSPKVRAFVDFI 278
Cdd:PRK11139 243 LAQPEIEAGRLVCPFDTVLPSPNaFYLVCPDSQAELPKVAAFRQWL 288
PBP2_GcdR_TrpI_HvrB_AmpR_like cd08432
The C-terminal substrate domain of LysR-type GcdR, TrPI, HvR and beta-lactamase regulators, ...
92-278 2.68e-15

The C-terminal substrate domain of LysR-type GcdR, TrPI, HvR and beta-lactamase regulators, and that of other closely related homologs; contains the type 2 periplasmic binding fold; This CD includes the C-terminal substrate domain of LysR-type transcriptional regulators involved in controlling the expression of glutaryl-CoA dehydrogenase (GcdH), S-adenosyl-L-homocysteine hydrolase, cell division protein FtsW, tryptophan synthase, and beta-lactamase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176123 [Multi-domain]  Cd Length: 194  Bit Score: 72.61  E-value: 2.68e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  92 RLRVASPVLFsqlAMG----RIgAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAA 167
Cdd:cd08432    1 VLTVSVTPSF---AARwlipRL-ARFQARHPDIDLRLSTSDRLVDFAREGIDLAIRYGDGDWPGLEAERLMDEELVPVCS 76
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 168 PEL----PRPMPGAVRQTPAI--VTSSFQPTHWKLDDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQLAR 241
Cdd:cd08432   77 PALlaglPLLSPADLARHTLLhdATRPEAWQWWLWAAGVADVDARRGPRFDDSSLALQAAVAGLGVALAPRALVADDLAA 156
                        170       180       190
                 ....*....|....*....|....*....|....*...
gi 494456633 242 GELVQWGTISGAQPEL-WVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08432  157 GRLVRPFDLPLPSGGAyYLVYPPGRAESPAVAAFRDWL 194
PBP2_CrgA_like_1 cd08470
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-278 3.57e-15

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding domain; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 1. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176159  Cd Length: 197  Bit Score: 72.34  E-value: 3.57e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE- 169
Cdd:cd08470    1 GLLRITCPVAYGERFIAPLVNDFMQRYPKLEVDIELTNRVVDLVSEGFDLAIRLGRLTDSSLMARRLASRRHYVCASPAy 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 170 -----LPRPMPGAVRQTPAIVTSsfqpTHWK-LDDGHLV-LEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQLARG 242
Cdd:cd08470   81 lerhgTPHSLADLDRHNCLLGTS----DHWRfQENGRERsVRVQGRWRCNSGVALLDAALKGMGLAQLPDYYVDEHLAAG 156
                        170       180       190
                 ....*....|....*....|....*....|....*....
gi 494456633 243 ELVQwgTISGAQPE---LWVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08470  157 RLVP--VLEDYRPPdegIWALYPHNRHLSPKVRLLVDYL 193
PRK09801 PRK09801
LysR family transcriptional regulator;
21-200 2.45e-14

LysR family transcriptional regulator;


Pssm-ID: 182085 [Multi-domain]  Cd Length: 310  Bit Score: 71.99  E-value: 2.45e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  21 ASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEM-------LMARTEGPLGEVAEAMTatrdgvaTPRGRL 93
Cdd:PRK09801  26 AAATLGQTPAFVTKRIQILENTLATTLLNRSARGVALTESGQRcyehaleILTQYQRLVDDVTQIKT-------RPEGMI 98
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  94 RVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPELPR- 172
Cdd:PRK09801  99 RIGCSFGFGRSHIAPAITELMRNYPELQVHFELFDRQIDLVQDNIDLDIRINDEIPDYYIAHLLTKNKRILCAAPEYLQk 178
                        170       180       190
                 ....*....|....*....|....*....|....
gi 494456633 173 -PMPGAVRQTP---AIVTSSFQPTH--WKLDDGH 200
Cdd:PRK09801 179 yPQPQSLQELSrhdCLVTKERDMTHgiWELGNGQ 212
PRK11242 PRK11242
DNA-binding transcriptional regulator CynR; Provisional
9-142 3.25e-14

DNA-binding transcriptional regulator CynR; Provisional


Pssm-ID: 183051 [Multi-domain]  Cd Length: 296  Bit Score: 71.14  E-value: 3.25e-14
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   9 FMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDGVAT 88
Cdd:PRK11242   9 FLAVAEHGNFTRAAEALHVSQPTLSQQIRQLEESLGVQLFDRSGRTVRLTDAGEVYLRYARRALQDLEAGRRAIHDVADL 88
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|....*..
gi 494456633  89 PRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTA--EDRL-VDLVEEQFDVTI 142
Cdd:PRK11242  89 SRGSLRLAMTPTFTAYLIGPLIDAFHARYPGITLTIREmsQERIeALLADDELDVGI 145
PBP2_CrgA_like_10 cd08480
The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional ...
91-169 2.31e-13

The C-terminal substrate binding domain of an uncharacterized LysR-type transcriptional regulator CrgA-like, contains the type 2 periplasmic binding fold; This CD represents the substrate binding domain of an uncharacterized LysR-type transcriptional regulator (LTTR) CrgA-like 10. The LTTRs are acting as both auto-repressors and activators of target promoters, controlling operons involved in a wide variety of cellular processes such as amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, nodule formation of nitrogen-fixing bacteria, and synthesis of virulence factors, to name a few. In contrast to the tetrameric form of other LTTRs, CrgA from Neisseria meningitides assembles into an octameric ring, which can bind up to four 63-bp DNA oligonucleotides. Phylogenetic cluster analysis showed that the CrgA-like regulators form a subclass of the LTTRs that function as octamers. The CrgA is an auto-repressor of its own gene and activates the expression of the mdaB gene which coding for an NADPH-quinone reductase and that its action is increased by MBL (alpha-methylene-gamma-butyrolactone), an inducer of NADPH-quinone oxidoreductase. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176169  Cd Length: 198  Bit Score: 67.36  E-value: 2.31e-13
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 494456633  91 GRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPE 169
Cdd:cd08480    1 GRLRVNASVPFGTHFLLPLLPAFLARYPEILVDLSLTDEVVDLLAERTDVAIRVGPLPDSSLVARKLGESRRVIVASPS 79
PRK10632 PRK10632
HTH-type transcriptional activator AaeR;
21-174 7.02e-12

HTH-type transcriptional activator AaeR;


Pssm-ID: 182601 [Multi-domain]  Cd Length: 309  Bit Score: 64.78  E-value: 7.02e-12
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  21 ASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMA---RTEGPLGEVAEAMTATRDgvaTPRGRLRVAS 97
Cdd:PRK10632  22 AARQLQMSVSSISQTVSKLEDELQVKLLNRSTRSIGLTEAGRIYYQgcrRMLHEVQDVHEQLYAFNN---TPIGTLRIGC 98
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  98 PVLFSQLAMGRIGAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRINPDPDSSLVGR---------CFARDRLIVVAAP 168
Cdd:PRK10632  99 SSTMAQNVLAGLTAKMLKEYPGLSVNLVTGIPAPDLIADGLDVVIRVGALQDSSLFSRrlgampmvvCAAKSYLAQYGTP 178

                 ....*.
gi 494456633 169 ELPRPM 174
Cdd:PRK10632 179 EKPADL 184
PRK10341 PRK10341
transcriptional regulator TdcA;
6-69 1.32e-08

transcriptional regulator TdcA;


Pssm-ID: 182391 [Multi-domain]  Cd Length: 312  Bit Score: 54.87  E-value: 1.32e-08
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 494456633   6 LIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTE 69
Cdd:PRK10341  12 LVVFQEVIRSGSIGSAAKELGLTQPAVSKIINDIEDYFGVELIVRKNTGVTLTPAGQVLLSRSE 75
PRK09791 PRK09791
LysR family transcriptional regulator;
3-142 9.29e-08

LysR family transcriptional regulator;


Pssm-ID: 182077 [Multi-domain]  Cd Length: 302  Bit Score: 52.46  E-value: 9.29e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   3 LNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTAT 82
Cdd:PRK09791   7 IHQIRAFVEVARQGSIRGASRMLNMSQPALTKSIQELEEGLAAQLFFRRSKGVTLTDAGESFYQHASLILEELRAAQEDI 86
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 494456633  83 RDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTaEDRLVDLVEE----QFDVTI 142
Cdd:PRK09791  87 RQRQGQLAGQINIGMGASIARSLMPAVISRFHQQHPQVKVRIM-EGQLVSMINElrqgELDFTI 149
PRK09986 PRK09986
LysR family transcriptional regulator;
1-69 1.09e-07

LysR family transcriptional regulator;


Pssm-ID: 182183 [Multi-domain]  Cd Length: 294  Bit Score: 52.03  E-value: 1.09e-07
                         10        20        30        40        50        60        70
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 494456633   1 MNLNALID------FMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTE 69
Cdd:PRK09986   1 MERLYRIDlkllryFLAVAEELHFGRAAARLNISQPPLSIHIKELEDQLGTPLFIRHSRSVVLTHAGKILMEESR 75
PRK10094 PRK10094
HTH-type transcriptional activator AllS;
5-118 7.50e-07

HTH-type transcriptional activator AllS;


Pssm-ID: 182237 [Multi-domain]  Cd Length: 308  Bit Score: 49.80  E-value: 7.50e-07
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   5 ALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTE---GPLGEVAEAMTA 81
Cdd:PRK10094   6 TLRTFIAVAETGSFSKAAERLCKTTATISYRIKLLEENTGVALFFRTTRSVTLTAAGEHLLSQARdwlSWLESMPSELQQ 85
                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 494456633  82 TRDGVaTPRGRLrVASPVLFSQLAMGRIGAGFYAAYP 118
Cdd:PRK10094  86 VNDGV-ERQVNI-VINNLLYNPQAVAQLLAWLNERYP 120
PRK10086 PRK10086
DNA-binding transcriptional regulator DsdC;
27-142 1.03e-06

DNA-binding transcriptional regulator DsdC;


Pssm-ID: 182231 [Multi-domain]  Cd Length: 311  Bit Score: 49.23  E-value: 1.03e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  27 ISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDgvATPRGRLRVASPVLFSQ-LA 105
Cdd:PRK10086  40 LTPSAVSHRINQLEEELGIKLFVRSHRKVELTEEGKRVFWALKSSLDTLNQEILDIKN--QELSGTLTVYSRPSIAQcWL 117
                         90       100       110
                 ....*....|....*....|....*....|....*..
gi 494456633 106 MGRIgAGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTI 142
Cdd:PRK10086 118 VPRL-ADFTRRYPSISLTILTGNENVNFQRAGIDLAI 153
PRK09906 PRK09906
DNA-binding transcriptional regulator HcaR; Provisional
1-65 2.74e-06

DNA-binding transcriptional regulator HcaR; Provisional


Pssm-ID: 182137 [Multi-domain]  Cd Length: 296  Bit Score: 47.84  E-value: 2.74e-06
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLM 65
Cdd:PRK09906   1 MELRHLRYFVAVAEELNFTKAAEKLHTAQPSLSQQIKDLENCVGVPLLVRDKRKVALTAAGEVFL 65
rbcR CHL00180
LysR transcriptional regulator; Provisional
20-124 6.60e-06

LysR transcriptional regulator; Provisional


Pssm-ID: 177082 [Multi-domain]  Cd Length: 305  Bit Score: 46.55  E-value: 6.60e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  20 KASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDGVATPRGRLRV-ASP 98
Cdd:CHL00180  24 KAAESLYISQPAVSLQIKNLEKQLNIPLFDRSKNKASLTEAGELLLRYGNRILALCEETCRALEDLKNLQRGTLIIgASQ 103
                         90       100
                 ....*....|....*....|....*.
gi 494456633  99 VLFSQLaMGRIGAGFYAAYPEVIIEV 124
Cdd:CHL00180 104 TTGTYL-MPRLIGLFRQRYPQINVQL 128
PBP2_LTTR_substrate cd05466
The substrate binding domain of LysR-type transcriptional regulators (LTTRs), a member of the ...
92-278 8.80e-06

The substrate binding domain of LysR-type transcriptional regulators (LTTRs), a member of the type 2 periplasmic binding fold protein superfamily; This model and hierarchy represent the the substrate-binding domain of the LysR-type transcriptional regulators that form the largest family of prokaryotic transcription factor. Homologs of some of LTTRs with similar domain organizations are also found in the archaea and eukaryotic organisms. The LTTRs are composed of two functional domains joined by a linker helix involved in oligomerization: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal substrate-binding domain, which is structurally homologous to the type 2 periplasmic binding proteins. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcriptional repressor undergoes a conformational change upon substrate binding which in turn changes the DNA binding affinity of the repressor. The genes controlled by the LTTRs have diverse functional roles including amino acid biosynthesis, CO2 fixation, antibiotic resistance, degradation of aromatic compounds, oxidative stress responses, nodule formation of nitrogen-fixing bacteria, synthesis of virulence factors, toxin production, attachment and secretion, to name a few. The structural topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the PBP2 superfamily includes the substrate-binding domains from ionotropic glutamate receptors, LysR-like transcriptional regulators, and unorthodox sensor proteins involved in signal transduction.


Pssm-ID: 176102 [Multi-domain]  Cd Length: 197  Bit Score: 45.67  E-value: 8.80e-06
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  92 RLRVASPVLFSQLAMGRIGAGFYAAYPEVIIEVTAE--DRLVDLVEE-QFDVTIRINPDPDSSLVGRCFARDRLIVVAAP 168
Cdd:cd05466    1 TLRIGASPSIAAYLLPPLLAAFRQRYPGVELSLVEGgsSELLEALLEgELDLAIVALPVDDPGLESEPLFEEPLVLVVPP 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 169 ELPRPMPGAVR-----QTPAIVTSSFQPTHWKLDD--GHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAwSQLAR 241
Cdd:cd05466   81 DHPLAKRKSVTladlaDEPLILFERGSGLRRLLDRafAEAGFTPNIALEVDSLEAIKALVAAGLGIALLPESAV-EELAD 159
                        170       180       190       200
                 ....*....|....*....|....*....|....*....|.
gi 494456633 242 GELVqwgTISGAQPELW----VLHTSRRLVSPKVRAFVDFI 278
Cdd:cd05466  160 GGLV---VLPLEDPPLSrtigLVWRKGRYLSPAARAFLELL 197
PRK10082 PRK10082
hypochlorite stress DNA-binding transcriptional regulator HypT;
6-104 2.11e-05

hypochlorite stress DNA-binding transcriptional regulator HypT;


Pssm-ID: 182228 [Multi-domain]  Cd Length: 303  Bit Score: 45.05  E-value: 2.11e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   6 LIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDG 85
Cdd:PRK10082  16 LYDFLTLEKCRNFSQAAVSRNVSQPAFSRRIRALEQAIGVELFNRQVTPLQLSEQGKIFHSQIRHLLQQLESNLAELRGG 95
                         90       100
                 ....*....|....*....|....*...
gi 494456633  86 VATPRGRLRVAS---------PVLFSQL 104
Cdd:PRK10082  96 SDYAQRKIKIAAahslslgllPSIISQM 123
PRK15421 PRK15421
HTH-type transcriptional regulator MetR;
14-182 2.20e-05

HTH-type transcriptional regulator MetR;


Pssm-ID: 185319 [Multi-domain]  Cd Length: 317  Bit Score: 45.39  E-value: 2.20e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  14 NNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDGVATprgRL 93
Cdd:PRK15421  15 NCGSLAAAAATLHQTQSALSHQFSDLEQRLGFRLFVRKSQPLRFTPQGEILLQLANQVLPQISQALQACNEPQQT---RL 91
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  94 RVA----SPVLFSQLAMgrigAGFYAAYPEVIIEVTAE---DRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVA 166
Cdd:PRK15421  92 RIAiechSCIQWLTPAL----ENFHKNWPQVEMDFKSGvtfDPQPALQQGELDLVMTSDILPRSGLHYSPMFDYEVRLVL 167
                        170
                 ....*....|....*.
gi 494456633 167 APElpRPMPGAVRQTP 182
Cdd:PRK15421 168 APD--HPLAAKTRITP 181
PRK13348 PRK13348
HTH-type transcriptional regulator ArgP;
9-69 2.48e-05

HTH-type transcriptional regulator ArgP;


Pssm-ID: 237357 [Multi-domain]  Cd Length: 294  Bit Score: 44.96  E-value: 2.48e-05
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 494456633   9 FMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSaRGLKLTEAGEMLMARTE 69
Cdd:PRK13348  10 LAAVVETGSFERAARRLHVTPSAVSQRIKALEESLGQPLLVRG-RPCRPTPAGQRLLRHLR 69
PRK12682 PRK12682
transcriptional regulator CysB-like protein; Reviewed
1-120 3.72e-05

transcriptional regulator CysB-like protein; Reviewed


Pssm-ID: 183679 [Multi-domain]  Cd Length: 309  Bit Score: 44.60  E-value: 3.72e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALiDFML--VANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLK-LTEAGEMLMARTEGPLGEVAE 77
Cdd:PRK12682   1 MNLQQL-RFVReaVRRNLNLTEAAKALHTSQPGVSKAIIELEEELGIEIFIRHGKRLKgLTEPGKAVLDVIERILREVGN 79
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 494456633  78 AMTATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEV 120
Cdd:PRK12682  80 IKRIGDDFSNQDSGTLTIATTHTQARYVLPRVVAAFRKRYPKV 122
PRK10837 PRK10837
putative DNA-binding transcriptional regulator; Provisional
20-171 4.38e-05

putative DNA-binding transcriptional regulator; Provisional


Pssm-ID: 182768 [Multi-domain]  Cd Length: 290  Bit Score: 44.29  E-value: 4.38e-05
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  20 KASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDGvatpRGRLRVASPV 99
Cdd:PRK10837  22 QASVMLALSQSAVSAALTDLEGQLGVQLFDRVGKRLVVNEHGRLLYPRALALLEQAVEIEQLFRED----NGALRIYASS 97
                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 494456633 100 LFSQLAMGRIGAGFYAAYPEVIIEVT---AEDRLVDLVEEQFDVTIRINPDPDSSLVGRCFARDRLIVVAAPELP 171
Cdd:PRK10837  98 TIGNYILPAMIARYRRDYPQLPLELSvgnSQDVINAVLDFRVDIGLIEGPCHSPELISEPWLEDELVVFAAPDSP 172
PRK11151 PRK11151
DNA-binding transcriptional regulator OxyR; Provisional
20-75 4.53e-05

DNA-binding transcriptional regulator OxyR; Provisional


Pssm-ID: 182999 [Multi-domain]  Cd Length: 305  Bit Score: 44.25  E-value: 4.53e-05
                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|....*.
gi 494456633  20 KASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEV 75
Cdd:PRK11151  20 RAADSCHVSQPTLSGQIRKLEDELGVMLLERTSRKVLFTQAGLLLVDQARTVLREV 75
PRK11716 PRK11716
HTH-type transcriptional activator IlvY;
27-65 8.35e-05

HTH-type transcriptional activator IlvY;


Pssm-ID: 236961 [Multi-domain]  Cd Length: 269  Bit Score: 43.27  E-value: 8.35e-05
                         10        20        30
                 ....*....|....*....|....*....|....*....
gi 494456633  27 ISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLM 65
Cdd:PRK11716   3 VSPSTLSRQIQRLEEELGQPLFVRDNRSVTLTEAGEELR 41
PBP2_GcdR_like cd08481
The C-terminal substrate binding domain of LysR-type transcriptional regulators GcdR-like, ...
93-278 1.71e-04

The C-terminal substrate binding domain of LysR-type transcriptional regulators GcdR-like, contains the type 2 periplasmic binding fold; GcdR is involved in the glutaconate/glutarate-specific activation of the Pg promoter driving expression of a glutaryl-CoA dehydrogenase-encoding gene (gcdH). The GcdH protein is essential for the anaerobic catabolism of many aromatic compounds and some alicyclic and dicarboxylic acids. The structural topology of this substrate-binding domain is most similar to the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176170 [Multi-domain]  Cd Length: 194  Bit Score: 41.51  E-value: 1.71e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  93 LRVAS-PVLFSQLAMGRIGaGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRI-NPDPDSSLVGRCFARDrLIVVAAPEL 170
Cdd:cd08481    2 LELAVlPTFGTRWLIPRLP-DFLARHPDITVNLVTRDEPFDFSQGSFDAAIHFgDPVWPGAESEYLMDEE-VVPVCSPAL 79
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 171 PRPMPGAVRQTPAIVT---SSFQPT---HWKLDDGHLVLEPIPKLWFSSLMMVRDAAVAGGGAALIPQSIAWSQLARGEL 244
Cdd:cd08481   80 LAGRALAAPADLAHLPllqQTTRPEawrDWFEEVGLEVPTAYRGMRFEQFSMLAQAAVAGLGVALLPRFLIEEELARGRL 159
                        170       180       190
                 ....*....|....*....|....*....|....*....
gi 494456633 245 VqwgtISGAQPEL-----WVLHTSRRLVSPKVRAFVDFI 278
Cdd:cd08481  160 V----VPFNLPLTsdkayYLVYPEDKAESPPVQAFRDWL 194
PRK12680 PRK12680
LysR family transcriptional regulator;
32-191 3.57e-04

LysR family transcriptional regulator;


Pssm-ID: 183677 [Multi-domain]  Cd Length: 327  Bit Score: 41.53  E-value: 3.57e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  32 LSRRVADLEEQLGVRLIERSARGLK-LTEAGEMLMARTEGPLGEVAEAMTATRDGVATPRGRLRVASPVLFSQLAMGRIG 110
Cdd:PRK12680  33 LSKQLKQLEDELGFLLFVRKGRSLEsVTPAGVEVIERARAVLSEANNIRTYAANQRRESQGQLTLTTTHTQARFVLPPAV 112
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 111 AGFYAAYPEVIIEV--TAEDRLVDLVeEQFDVTIRI----NPDPDSSLVGRCFARDRLIVVaapelPRPMP-GAVRQTPA 183
Cdd:PRK12680 113 AQIKQAYPQVSVHLqqAAESAALDLL-GQGDADIAIvstaGGEPSAGIAVPLYRWRRLVVV-----PRGHAlDTPRRAPD 186

                 ....*...
gi 494456633 184 IVTSSFQP 191
Cdd:PRK12680 187 MAALAEHP 194
PRK12683 PRK12683
transcriptional regulator CysB-like protein; Reviewed
1-120 3.92e-04

transcriptional regulator CysB-like protein; Reviewed


Pssm-ID: 237172 [Multi-domain]  Cd Length: 309  Bit Score: 41.18  E-value: 3.92e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNAL-IDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSA-RGLKLTEAGEMLMARTEGPLGEVAEA 78
Cdd:PRK12683   1 MNFQQLrIIREAVRQNFNLTEVANALYTSQSGVSKQIKDLEDELGVEIFIRRGkRLTGLTEPGKELLQIVERMLLDAENL 80
                         90       100       110       120
                 ....*....|....*....|....*....|....*....|..
gi 494456633  79 MTATRDGVATPRGRLRVASPVLFSQLAMGRIGAGFYAAYPEV 120
Cdd:PRK12683  81 RRLAEQFADRDSGHLTVATTHTQARYALPKVVRQFKEVFPKV 122
cbl PRK12679
HTH-type transcriptional regulator Cbl;
28-124 5.05e-04

HTH-type transcriptional regulator Cbl;


Pssm-ID: 183676 [Multi-domain]  Cd Length: 316  Bit Score: 40.95  E-value: 5.05e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  28 SKATLSRRVADLEEQLGVRL-IERSARGLKLTEAGEMLMARTEGPLGEVAEAMTATRDGVATPRGRLRVASPVLFSQLAM 106
Cdd:PRK12679  29 SQSGVSRHIRELEDELGIEIfIRRGKRLLGMTEPGKALLVIAERILNEASNVRRLADLFTNDTSGVLTIATTHTQARYSL 108
                         90
                 ....*....|....*...
gi 494456633 107 GRIGAGFYAAYPEVIIEV 124
Cdd:PRK12679 109 PEVIKAFRELFPEVRLEL 126
PBP2_HvrB cd08483
The C-terminal substrate-binding domain of LysR-type transcriptional regulator HvrB, an ...
93-170 7.53e-04

The C-terminal substrate-binding domain of LysR-type transcriptional regulator HvrB, an activator of S-adenosyl-L-homocysteine hydrolase expression, contains the type 2 periplasmic binding fold; The transcriptional regulator HvrB of the LysR family is required for the light-dependent activation of both ahcY, which encoding the enzyme S-adenosyl-L-homocysteine hydrolase (AdoHcyase) that responsible for the reversible hydrolysis of AdoHcy to adenosine and homocysteine, and orf5, a gene of unknown. The topology of this C-terminal domain of HvrB is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176172 [Multi-domain]  Cd Length: 190  Bit Score: 39.64  E-value: 7.53e-04
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  93 LRVA-SPVLFSQLAMGRIGaGFYAAYPEVIIEVTAEDRLVDLVEEQFDVTIRIN----PDPDSSLvgrcFARDRLIVVAA 167
Cdd:cd08483    2 LTVTlTPSFASNWLMPRLG-SFWAKHPEIELSLLPSADLVDLRPDGIDVAIRYGngdwPGLESEP----LTAAPFVVVAA 76

                 ...
gi 494456633 168 PEL 170
Cdd:cd08483   77 PGL 79
PRK11233 PRK11233
nitrogen assimilation transcriptional regulator; Provisional
1-106 2.67e-03

nitrogen assimilation transcriptional regulator; Provisional


Pssm-ID: 183045 [Multi-domain]  Cd Length: 305  Bit Score: 38.90  E-value: 2.67e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633   1 MNLNALIDFMLVANNEGLGKASRASGISKATLSRRVADLEEQLGVRLIERSARGLKLTEAGEMLMARTEGPLGEVAEAMT 80
Cdd:PRK11233   1 MNFRRLKYFVKIVDIGSLTQAAEVLHIAQPALSQQVATLEGELNQQLLIRTKRGVTPTEAGKILYTHARAILRQCEQAQL 80
                         90       100
                 ....*....|....*....|....*...
gi 494456633  81 ATRDGVATPRGRLRV--ASPVLFSQLAM 106
Cdd:PRK11233  81 AVHNVGQALSGQVSIglAPGTAASSLTM 108
PRK11074 PRK11074
putative DNA-binding transcriptional regulator; Provisional
36-197 8.45e-03

putative DNA-binding transcriptional regulator; Provisional


Pssm-ID: 182948 [Multi-domain]  Cd Length: 300  Bit Score: 37.23  E-value: 8.45e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633  36 VADLEEQLGVRLIERSARGLKLTEAGEMLM--ARtegplgEVAEAMTATRDG---VATP-RGRLRVA-----SPVLFSQL 104
Cdd:PRK11074  37 VRQLEEWLAVPLFERRHRDVELTPAGEWFVkeAR------SVIKKMQETRRQcqqVANGwRGQLSIAvdnivRPDRTRQL 110
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 494456633 105 AmgrigAGFYAAYPEVIIEVTAE------DRLVDlveEQFDVTI---RINPdpdsslVGRCFA-RDR-----LIVVAA-- 167
Cdd:PRK11074 111 I-----VDFYRHFDDVELIIRQEvfngvwDALAD---GRVDIAIgatRAIP------VGGRFAfRDMgmlswACVVSSdh 176
                        170       180       190
                 ....*....|....*....|....*....|....*...
gi 494456633 168 P--ELPRPMP-GAVRQTPAIV---TSSFQP--THWKLD 197
Cdd:PRK11074 177 PlaSMDGPLSdDELRPYPSLCledTSRTLPkrITWLLD 214
PBP2_CysL_like cd08420
C-terminal substrate binding domain of LysR-type transcriptional regulator CysL, which ...
111-171 9.52e-03

C-terminal substrate binding domain of LysR-type transcriptional regulator CysL, which activates the transcription of the cysJI operon encoding sulfite reductase, contains the type 2 periplasmic binding fold; CysL, also known as YwfK, is a regular of sulfur metabolism in Bacillus subtilis. Sulfur is required for the synthesis of proteins and essential cofactors in all living organism. Sulfur can be assimilated either from inorganic sources (sulfate and thiosulfate), or from organic sources (sulfate esters, sulfamates, and sulfonates). CysL activates the transcription of the cysJI operon encoding sulfite reductase, which reduces sulfite to sulfide. Both cysL mutant and cysJI mutant are unable to grow using sulfate or sulfite as the sulfur source. Like other LysR-type regulators, CysL also negatively regulates its own transcription. In Escherichia coli, three LysR-type activators are involved in the regulation of sulfur metabolism: CysB, Cbl and MetR. The topology of this substrate-binding domain is most similar to that of the type 2 periplasmic binding proteins (PBP2), which are responsible for the uptake of a variety of substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. The PBP2 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 cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.


Pssm-ID: 176112 [Multi-domain]  Cd Length: 201  Bit Score: 36.32  E-value: 9.52e-03
                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 494456633 111 AGFYAAYPEVIIEVTAED--RLVDLVEE-QFDVTIRINPDPDSSLVGRCFARDRLIVVAAPELP 171
Cdd:cd08420   20 ARFRKRYPEVRVSLTIGNteEIAERVLDgEIDLGLVEGPVDHPDLIVEPFAEDELVLVVPPDHP 83
 
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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