membrane-bound lytic murein transglycosylase F [Escherichia coli str. K-12 substr. MG1655]
Protein Classification
membrane-bound lytic murein transglycosylase F( domain architecture ID 11484996)
membrane-bound lytic murein transglycosylase F (MltF) cleaves the glycosidic bond between N-acetylmuramic acid and N-acetylglucosamin to allow for the regular growth and maintenance of the murein sacculus
List of domain hits
| Name | Accession | Description | Interval | E-value | ||||||||
| PRK10859 | PRK10859 | membrane-bound lytic murein transglycosylase MltF; |
1-483 | 0e+00 | ||||||||
membrane-bound lytic murein transglycosylase MltF; : Pssm-ID: 236778 [Multi-domain] Cd Length: 482 Bit Score: 859.56 E-value: 0e+00
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| Name | Accession | Description | Interval | E-value | ||||||||
| PRK10859 | PRK10859 | membrane-bound lytic murein transglycosylase MltF; |
1-483 | 0e+00 | ||||||||
membrane-bound lytic murein transglycosylase MltF; Pssm-ID: 236778 [Multi-domain] Cd Length: 482 Bit Score: 859.56 E-value: 0e+00
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| MltF | COG4623 | Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, ... |
26-454 | 0e+00 | ||||||||
Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, Signal transduction mechanisms]; Pssm-ID: 443662 [Multi-domain] Cd Length: 421 Bit Score: 514.23 E-value: 0e+00
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| MLTF-like | cd13403 | membrane-bound lytic murein transglycosylase F (MLTF) and similar proteins; This subfamily ... |
295-452 | 1.92e-83 | ||||||||
membrane-bound lytic murein transglycosylase F (MLTF) and similar proteins; This subfamily includes membrane-bound lytic murein transglycosylase F (MltF, murein lyase F) that degrades murein glycan strands. It is responsible for catalyzing the release of 1,6-anhydromuropeptides from peptidoglycan. Lytic transglycosylase catalyzes the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc) as do goose-type lysozymes. However, in addition, it also makes a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Pssm-ID: 381606 [Multi-domain] Cd Length: 161 Bit Score: 255.54 E-value: 1.92e-83
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| PBPb | smart00062 | Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in ... |
44-266 | 3.02e-41 | ||||||||
Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in PBPe Pssm-ID: 214497 [Multi-domain] Cd Length: 219 Bit Score: 147.47 E-value: 3.02e-41
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| SBP_bac_3 | pfam00497 | Bacterial extracellular solute-binding proteins, family 3; This is a sensor domain found in ... |
45-266 | 3.15e-28 | ||||||||
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: 112.00 E-value: 3.15e-28
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| Name | Accession | Description | Interval | E-value | ||||||||
| PRK10859 | PRK10859 | membrane-bound lytic murein transglycosylase MltF; |
1-483 | 0e+00 | ||||||||
membrane-bound lytic murein transglycosylase MltF; Pssm-ID: 236778 [Multi-domain] Cd Length: 482 Bit Score: 859.56 E-value: 0e+00
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| MltF | COG4623 | Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, ... |
26-454 | 0e+00 | ||||||||
Membrane-bound lytic murein transglycosylase MltF [Cell wall/membrane/envelope biogenesis, Signal transduction mechanisms]; Pssm-ID: 443662 [Multi-domain] Cd Length: 421 Bit Score: 514.23 E-value: 0e+00
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| MLTF-like | cd13403 | membrane-bound lytic murein transglycosylase F (MLTF) and similar proteins; This subfamily ... |
295-452 | 1.92e-83 | ||||||||
membrane-bound lytic murein transglycosylase F (MLTF) and similar proteins; This subfamily includes membrane-bound lytic murein transglycosylase F (MltF, murein lyase F) that degrades murein glycan strands. It is responsible for catalyzing the release of 1,6-anhydromuropeptides from peptidoglycan. Lytic transglycosylase catalyzes the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc) as do goose-type lysozymes. However, in addition, it also makes a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Pssm-ID: 381606 [Multi-domain] Cd Length: 161 Bit Score: 255.54 E-value: 1.92e-83
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| PBP2_YfhD_N | cd01009 | The solute binding domain of YfhD proteins, a member of the type 2 periplasmic binding fold ... |
43-267 | 1.65e-75 | ||||||||
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: 237.49 E-value: 1.65e-75
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| PBPb | smart00062 | Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in ... |
44-266 | 3.02e-41 | ||||||||
Bacterial periplasmic substrate-binding proteins; bacterial proteins, eukaryotic ones are in PBPe Pssm-ID: 214497 [Multi-domain] Cd Length: 219 Bit Score: 147.47 E-value: 3.02e-41
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| SBP_bac_3 | pfam00497 | Bacterial extracellular solute-binding proteins, family 3; This is a sensor domain found in ... |
45-266 | 3.15e-28 | ||||||||
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: 112.00 E-value: 3.15e-28
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| SLT | pfam01464 | Transglycosylase SLT domain; This family is distantly related to pfam00062. Members are found ... |
298-406 | 1.03e-23 | ||||||||
Transglycosylase SLT domain; This family is distantly related to pfam00062. Members are found in phages, type II, type III and type IV secretion systems. Pssm-ID: 396169 [Multi-domain] Cd Length: 114 Bit Score: 95.84 E-value: 1.03e-23
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| HisJ | COG0834 | ABC-type amino acid transport/signal transduction system, periplasmic component/domain [Amino ... |
45-267 | 2.01e-23 | ||||||||
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: 98.51 E-value: 2.01e-23
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| PBP2_peptides_like | cd13530 | Peptide-binding protein and related homologs; type 2 periplasmic binding protein fold; This ... |
44-265 | 1.26e-20 | ||||||||
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: 90.39 E-value: 1.26e-20
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| LT-like | cd00254 | lytic transglycosylase(LT)-like domain; Members include the soluble and insoluble ... |
305-396 | 4.77e-19 | ||||||||
lytic transglycosylase(LT)-like domain; Members include the soluble and insoluble membrane-bound LTs in bacteria and LTs in bacteriophage lambda. LTs catalyze the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc), as do "goose-type" lysozymes. However, in addition to this, they also make a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Pssm-ID: 381594 [Multi-domain] Cd Length: 111 Bit Score: 82.65 E-value: 4.77e-19
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| MltE | COG0741 | Soluble lytic murein transglycosylase or regulatory protein s ( may contain LysM/invasin ... |
292-387 | 9.54e-17 | ||||||||
Soluble lytic murein transglycosylase or regulatory protein s ( may contain LysM/invasin domain) [Cell wall/membrane/envelope biogenesis]; Pssm-ID: 440504 [Multi-domain] Cd Length: 244 Bit Score: 79.65 E-value: 9.54e-17
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| PBP2_Cystine_like | cd13626 | Substrate binding domain of cystine ABC transporters; the type 2 periplasmic binding protein ... |
53-267 | 1.14e-14 | ||||||||
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: 73.12 E-value: 1.14e-14
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| PBP2_AA_binding_like_1 | cd13625 | Substrate-binding domain of putative amino acid-binding protein; the type 2 ... |
39-265 | 2.23e-13 | ||||||||
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: 270343 [Multi-domain] Cd Length: 230 Bit Score: 69.71 E-value: 2.23e-13
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| Slt70-like | cd13401 | 70kDa soluble lytic transglycosylase (Slt70) and similar proteins; Catalytic domain of the ... |
292-387 | 2.56e-13 | ||||||||
70kDa soluble lytic transglycosylase (Slt70) and similar proteins; Catalytic domain of the 70kda soluble lytic transglycosylase (LT)-like proteins, which also have an N-terminal U-shaped U-domain and a linker L-domain. LTs catalyze the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc), as do "goose-type" lysozymes. However, in addition to this, they also make a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Proteins similar to this family include the soluble and insoluble membrane-bound LTs in bacteria and the LTs in bacteriophage lambda. Pssm-ID: 381604 [Multi-domain] Cd Length: 152 Bit Score: 67.50 E-value: 2.56e-13
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| PBP2_Dsm1740 | cd13629 | Amino acid-binding domain of the type 2 periplasmic binding fold superfamily; This subfamily ... |
44-266 | 2.24e-12 | ||||||||
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: 66.44 E-value: 2.24e-12
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| PBP2_Ngo0372_TcyA | cd13711 | Substrate binding domain of ABC transporters involved in cystine import; the type 2 ... |
43-267 | 2.79e-12 | ||||||||
Substrate binding domain of ABC transporters involved in cystine import; the type 2 periplasmic binding protein fold; This subgroup includes cystine-binding domain of periplasmic receptor-dependent ATP-binding cassette transporters from Neisseria gonorrhoeae and Bacillus subtilis and their 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: 270429 [Multi-domain] Cd Length: 222 Bit Score: 66.17 E-value: 2.79e-12
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| PBP2_HisK | cd13704 | The periplasmic sensor domain of histidine kinase receptors; the type 2 periplasmic binding ... |
53-266 | 3.33e-12 | ||||||||
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: 66.07 E-value: 3.33e-12
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| LT_Slt70-like | cd16896 | uncharacterized lytic transglycosylase subfamily with similarity to Slt70; Uncharacterized ... |
296-387 | 4.91e-12 | ||||||||
uncharacterized lytic transglycosylase subfamily with similarity to Slt70; Uncharacterized lytic transglycosylase (LT) with a conserved sequence pattern suggesting similarity to the Slt70, a 70kda soluble lytic transglycosylase which also has an N-terminal U-shaped U-domain and a linker L-domain. LTs catalyze the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc), as do "goose-type" lysozymes. However, in addition to this, they also make a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Pssm-ID: 381617 [Multi-domain] Cd Length: 146 Bit Score: 63.68 E-value: 4.91e-12
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| PBP2_PheC | cd01069 | Cyclohexadienyl dehydratase, a member of the type 2 periplasmic binding fold protein ... |
39-266 | 3.89e-11 | ||||||||
Cyclohexadienyl dehydratase, a member of the type 2 periplasmic binding fold protein superfamily; This subfamily includes cyclohexadienyl dehydratase PheC. These proteins catalyze the decarboxylation of prephenate to phenylpyruvate in the alternative phenylalanine biosynthesis pathway in some proteobacteria and archaea. The PheC 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. Since they the PheC proteins are so similar to periplasmic binding proteins, (PBP), it is evolutionarily plausible that several pre-existing PBP proteins might have been recruited to perform the enzymatic function. Pssm-ID: 270231 [Multi-domain] Cd Length: 232 Bit Score: 63.13 E-value: 3.89e-11
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| PBP2_BsGlnH | cd13689 | Substrate binding domain of ABC glutamine transporter from Bacillus subtilis; the type 2 ... |
36-267 | 9.78e-11 | ||||||||
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: 61.86 E-value: 9.78e-11
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| PBP2_BvgS_HisK_like | cd01007 | The type 2 periplasmic ligand-binding protein domain of the sensor-kinase BvgS and histidine ... |
53-208 | 2.81e-10 | ||||||||
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: 60.24 E-value: 2.81e-10
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| PBP2_BvgS_D2 | cd13707 | The second of the two tandem periplasmic domains of sensor-kinase BvgS; the type 2 ... |
44-202 | 3.15e-10 | ||||||||
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: 60.31 E-value: 3.15e-10
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| PBP2_TcyK | cd13710 | Substrate binding domain of an ABC transporter TcyJKLMN; the type 2 periplasmic binding ... |
53-267 | 6.79e-10 | ||||||||
Substrate binding domain of an ABC transporter TcyJKLMN; the type 2 periplasmic binding protein fold; This group contains periplasmic cystine-binding domain (TcyK) of an ATP-binding cassette transporter from Bacillus subtilus 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: 270428 [Multi-domain] Cd Length: 233 Bit Score: 59.23 E-value: 6.79e-10
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| PBP2_FliY | cd13712 | Substrate binding domain of an Escherichia coli ABC transporter; the type 2 periplasmic ... |
53-267 | 6.92e-10 | ||||||||
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: 58.94 E-value: 6.92e-10
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| PBP2_polar_AA | cd13693 | Substrate binding domain of polar amino-acid uptake ABC transporter; the type 2 periplasmic ... |
39-129 | 2.09e-08 | ||||||||
Substrate binding domain of polar amino-acid uptake ABC transporter; the type 2 periplasmic binding protein fold; This group includes the periplamic-binding protein component of putative polar amino acid ABC transporter. The polar amino-acid 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: 270411 [Multi-domain] Cd Length: 228 Bit Score: 55.01 E-value: 2.09e-08
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| PBP2_YxeM | cd13709 | Substrate binding domain of an ABC transporter YxeMNO; the type 2 periplasmic binding protein ... |
53-267 | 3.37e-08 | ||||||||
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: 54.28 E-value: 3.37e-08
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| MltD-like | cd16894 | Membrane-bound lytic murein transglycosylase D and similar proteins; Lytic transglycosylases ... |
307-427 | 3.48e-08 | ||||||||
Membrane-bound lytic murein transglycosylase D and similar proteins; Lytic transglycosylases (LT) catalyze the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc). Membrane-bound lytic murein transglycosylase D protein (MltD) family members may have one or more small LysM domains, which may contribute to peptidoglycan binding. Unlike the similar "goose-type" lysozymes, LTs also make a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Proteins similar to this family include the soluble and insoluble membrane-bound LTs in bacteria, the LTs in bacteriophage lambda, as well as the eukaryotic "goose-type" lysozymes (goose egg-white lysozyme; GEWL). Pssm-ID: 381615 [Multi-domain] Cd Length: 129 Bit Score: 52.13 E-value: 3.48e-08
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| PBP2_GluB | cd13690 | Substrate binding domain of ABC glutamate transporter; the type 2 periplasmic binding protein ... |
36-147 | 7.22e-08 | ||||||||
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: 53.43 E-value: 7.22e-08
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| Slt35-like | cd13399 | Slt35-like lytic transglycosylase; Lytic transglycosylase similar to Escherichia coli lytic ... |
301-394 | 7.37e-08 | ||||||||
Slt35-like lytic transglycosylase; Lytic transglycosylase similar to Escherichia coli lytic transglycosylase Slt35 and Pseudomonas aeruginosa Sltb1. Lytic transglycosylase (LT) catalyzes the cleavage of the beta-1,4-glycosidic bond between N-acetylmuramic acid (MurNAc) and N-acetyl-D-glucosamine (GlcNAc) as do "goose-type" lysozymes. However, in addition to this, they also make a new glycosidic bond with the C6 hydroxyl group of the same muramic acid residue. Proteins similar to this this family include the soluble and insoluble membrane-bound LTs in bacteria, the LTs in bacteriophage lambda, as well as the eukaryotic "goose-type" lysozymes (goose egg-white lysozyme; GEWL). Pssm-ID: 381602 [Multi-domain] Cd Length: 108 Bit Score: 50.77 E-value: 7.37e-08
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| PHA00368 | PHA00368 | internal virion protein D |
294-366 | 1.24e-07 | ||||||||
internal virion protein D Pssm-ID: 222785 [Multi-domain] Cd Length: 1315 Bit Score: 54.79 E-value: 1.24e-07
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| PRK11260 | PRK11260 | cystine ABC transporter substrate-binding protein; |
32-267 | 1.78e-07 | ||||||||
cystine ABC transporter substrate-binding protein; Pssm-ID: 183061 [Multi-domain] Cd Length: 266 Bit Score: 52.42 E-value: 1.78e-07
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| PBP2_HisJ_LAO_like | cd01001 | Substrate binding domain of ABC-type histidine/lysine/arginine/ornithine transporters and ... |
42-265 | 1.78e-07 | ||||||||
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: 51.91 E-value: 1.78e-07
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| PBP2_SMa0082_like | cd01072 | The substrate-binding domain of putatuve amino acid transporter; the type 2 periplasmic ... |
34-134 | 2.22e-07 | ||||||||
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: 51.88 E-value: 2.22e-07
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| PRK11619 | PRK11619 | lytic murein transglycosylase; Provisional |
292-387 | 3.56e-07 | ||||||||
lytic murein transglycosylase; Provisional Pssm-ID: 183236 [Multi-domain] Cd Length: 644 Bit Score: 52.76 E-value: 3.56e-07
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| PBP2_MidA_like | cd01004 | Mimosine binding domain of ABC-type transporter MidA and similar proteins; the type 2 ... |
43-265 | 1.77e-06 | ||||||||
Mimosine binding domain of ABC-type transporter MidA and similar proteins; the type 2 periplasmic binding protein fold; This subgroup includes the periplasmic binding component of ABC transporter involved in uptake of mimosine MidA and its similar proteins. This periplasmic binding 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: 270225 [Multi-domain] Cd Length: 230 Bit Score: 49.16 E-value: 1.77e-06
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| PBP2_Arg_Lys_His | cd13624 | Substrate binding domain of the arginine-, lysine-, histidine-binding protein ArtJ; the type 2 ... |
53-266 | 1.81e-06 | ||||||||
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: 49.03 E-value: 1.81e-06
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| PBP2_Cystine_like_1 | cd13713 | Substrate binding domain of putative ABC transporters involved in cystine import; the type 2 ... |
44-267 | 2.06e-06 | ||||||||
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: 48.82 E-value: 2.06e-06
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| PBP2_Cys_DEBP_like | cd01000 | Substrate-binding domain of cysteine- and aspartate/glutamate-binding proteins; the type 2 ... |
37-266 | 2.67e-06 | ||||||||
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: 48.46 E-value: 2.67e-06
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| PBP2_GltS | cd13620 | Substrate binding domain of glutamate or arginine ABC transporter, a member of the type 2 ... |
58-220 | 3.38e-06 | ||||||||
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: 48.11 E-value: 3.38e-06
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| PRK15437 | PRK15437 | histidine ABC transporter substrate-binding protein HisJ; Provisional |
29-273 | 1.16e-05 | ||||||||
histidine ABC transporter substrate-binding protein HisJ; Provisional Pssm-ID: 185334 [Multi-domain] Cd Length: 259 Bit Score: 46.95 E-value: 1.16e-05
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| CwlT-like | cd16891 | CwlT-like N-terminal lysozyme domain and similar domains; CwlT is a bifunctional cell wall ... |
292-387 | 6.74e-05 | ||||||||
CwlT-like N-terminal lysozyme domain and similar domains; CwlT is a bifunctional cell wall hydrolase containing an N-terminal lysozyme domain and a C-terminal NlpC/P60 endopeptidase domain (gamma-d-D-glutamyl-L-diamino acid endopeptidase), and has been implicated in the spread of transposons. Proteins similar to this family include the soluble and insoluble membrane-bound LTs in bacteria, the LTs in bacteriophage lambda, as well as the eukaryotic "goose-type" lysozymes (goose egg-white lysozyme; GEWL). Pssm-ID: 381612 [Multi-domain] Cd Length: 151 Bit Score: 42.97 E-value: 6.74e-05
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| PBP2_AatB_like | cd00996 | Polar amino acids-binding domain of ATP-binding cassette transporter-like systems that belong ... |
53-267 | 7.43e-05 | ||||||||
Polar amino acids-binding domain of ATP-binding cassette transporter-like systems that belong to the type 2 periplasmic binding fold protein superfamily; This subfamily includes periplasmic binding domain of ATP-binding cassette transporter-like systems that serve as initial receptors in the ABC transport of amino acids and their derivatives in eubacteria. After binding their ligand with high affinity, they interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically-located ATPase. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. The Abp proteins belong to the PBPI 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: 270217 [Multi-domain] Cd Length: 227 Bit Score: 44.11 E-value: 7.43e-05
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| PBP2_Ala | cd13628 | Periplasmic substrate binding domain of ABC-type transporter specific to alanine; the type 2 ... |
56-265 | 1.21e-04 | ||||||||
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: 43.61 E-value: 1.21e-04
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| PBP2_ArtJ | cd00999 | The solute binding domain of ArtJ protein, a member of the type 2 periplasmic binding fold ... |
41-265 | 1.13e-03 | ||||||||
The solute binding domain of ArtJ protein, a member of the type 2 periplasmic binding fold protein superfamily; An arginine-binding protein found in Chlamydiae trachomatis (CT-ArtJ) and pneumoniae (CPn-ArtJ) and its closely related proteins. CT- and CPn-ArtJ are shown to have different immunogenic properties despite a high sequence similarity. The ArtJ proteins display the type 2 periplasmic binding fold organized in two alpha-beta domains with arginine-binding region at their interface. Pssm-ID: 270220 [Multi-domain] Cd Length: 223 Bit Score: 40.39 E-value: 1.13e-03
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| PBP2_AA_binding_like_2 | cd13627 | Substrate-binding domain of putative amino acid-binding protein; the type 2 ... |
65-137 | 2.16e-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: 39.69 E-value: 2.16e-03
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| PBP2_Peb1a_like | cd13691 | Substrate binding domain of an ABC aspartate/glutamate transporter; the type 2 ... |
36-126 | 2.17e-03 | ||||||||
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: 39.74 E-value: 2.17e-03
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| PBP2_YckB | cd01003 | Substrate binding domain of an ABC cystine transporter; the type 2 periplasmic binding protein ... |
43-270 | 3.02e-03 | ||||||||
Substrate binding domain of an ABC cystine transporter; the type 2 periplasmic binding protein fold; Periplasmic cystine-binding domain (YckB) of an ATP-binding cassette (ABC) transporter from Bacillus subtilis 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 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: 270224 [Multi-domain] Cd Length: 229 Bit Score: 39.17 E-value: 3.02e-03
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| Periplasmic_Binding_Protein_Type_2 | cd00648 | Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent ... |
65-233 | 7.54e-03 | ||||||||
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. Pssm-ID: 270214 [Multi-domain] Cd Length: 196 Bit Score: 37.94 E-value: 7.54e-03
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| PBP2_Cysteine | cd13694 | Substrate binding domain of ABC cysteine transporter; the type 2 periplasmic binding protein ... |
36-133 | 7.81e-03 | ||||||||
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: 38.10 E-value: 7.81e-03
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| PBP2_AA_hypothetical | cd13623 | Substrate-binding domain of putative amino-acid transport system; the type 2 periplasmic ... |
61-125 | 9.72e-03 | ||||||||
Substrate-binding domain of putative amino-acid transport system; 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: 270341 [Multi-domain] Cd Length: 220 Bit Score: 37.65 E-value: 9.72e-03
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