TonB-dependent receptor similar to Bacteroides thetaiotaomicron starch-utilization system protein C (SusC), which mediates transport of starch oligosaccharides from the surface of the outer membrane to the periplasm for subsequent degradation
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade ...
122-1086
0e+00
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade among the TonB-linked outer membrane proteins (OMP). Members of this family are restricted to the Bacteriodetes lineage (except for Gemmatimonas aurantiaca T-27 from the novel phylum Gemmatimonadetes) and occur in high copy numbers, with over 100 members from Bacteroides thetaiotaomicron VPI-5482 alone. Published descriptions of members of this family are available for RagA from Porphyromonas gingivalis, SusC from Bacteroides thetaiotaomicron, and OmpW from Bacteroides caccae. Members form pairs with members of the SusD/RagB family (pfam07980). Transporter complexes including these outer membrane proteins are likely to import large degradation products of proteins (e.g. RagA) or carbohydrates (e.g. SusC) as nutrients, rather than siderophores. [Transport and binding proteins, Unknown substrate]
:
Pssm-ID: 274948 [Multi-domain] Cd Length: 981 Bit Score: 716.29 E-value: 0e+00
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of ...
61-111
1.18e-03
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of the Secretins of the bacterial type II/III secretory system as well as the TonB-dependent receptor proteins. These proteins are involved in TonB-dependent active uptake of selective substrates.
:
Pssm-ID: 429580 [Multi-domain] Cd Length: 51 Bit Score: 37.88 E-value: 1.18e-03
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade ...
122-1086
0e+00
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade among the TonB-linked outer membrane proteins (OMP). Members of this family are restricted to the Bacteriodetes lineage (except for Gemmatimonas aurantiaca T-27 from the novel phylum Gemmatimonadetes) and occur in high copy numbers, with over 100 members from Bacteroides thetaiotaomicron VPI-5482 alone. Published descriptions of members of this family are available for RagA from Porphyromonas gingivalis, SusC from Bacteroides thetaiotaomicron, and OmpW from Bacteroides caccae. Members form pairs with members of the SusD/RagB family (pfam07980). Transporter complexes including these outer membrane proteins are likely to import large degradation products of proteins (e.g. RagA) or carbohydrates (e.g. SusC) as nutrients, rather than siderophores. [Transport and binding proteins, Unknown substrate]
Pssm-ID: 274948 [Multi-domain] Cd Length: 981 Bit Score: 716.29 E-value: 0e+00
CarboxypepD_reg-like domain; This domain family is found in bacteria, archaea and eukaryotes, ...
124-203
3.84e-19
CarboxypepD_reg-like domain; This domain family is found in bacteria, archaea and eukaryotes, and is approximately 90 amino acids in length. The family is found in association with pfam07715 and pfam00593.
Pssm-ID: 433425 [Multi-domain] Cd Length: 88 Bit Score: 83.02 E-value: 3.84e-19
TonB dependent/Ligand-Gated channels are created by a monomeric 22 strand (22,24) ...
232-854
1.02e-13
TonB dependent/Ligand-Gated channels are created by a monomeric 22 strand (22,24) anti-parallel beta-barrel. Ligands apparently bind to the large extracellular loops. The N-terminal 150-200 residues form a plug from the periplasmic end of barrel. Energy (proton-motive force) and TonB-dependent conformational alteration of channel (parts of plug, and loops 7 and 8) allow passage of ligand. FepA residues 12-18 form the TonB box, which mediates the interaction with the TonB-containing inner membrane complex. TonB preferentially interacts with ligand-bound receptors. Transport thru the channel may resemble passage thru an air lock. In this model, ligand binding leads to closure of the extracellular end of pore, then a TonB-mediated signal facillitates opening of the interior side of pore, deforming the N-terminal plug and allowing passage of the ligand to the periplasm. Such a mechanism would prevent the free diffusion of small molecules thru the pore.
Pssm-ID: 238657 [Multi-domain] Cd Length: 635 Bit Score: 75.57 E-value: 1.02e-13
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of ...
61-111
1.18e-03
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of the Secretins of the bacterial type II/III secretory system as well as the TonB-dependent receptor proteins. These proteins are involved in TonB-dependent active uptake of selective substrates.
Pssm-ID: 429580 [Multi-domain] Cd Length: 51 Bit Score: 37.88 E-value: 1.18e-03
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade ...
122-1086
0e+00
TonB-linked outer membrane protein, SusC/RagA family; This model describes a distinctive clade among the TonB-linked outer membrane proteins (OMP). Members of this family are restricted to the Bacteriodetes lineage (except for Gemmatimonas aurantiaca T-27 from the novel phylum Gemmatimonadetes) and occur in high copy numbers, with over 100 members from Bacteroides thetaiotaomicron VPI-5482 alone. Published descriptions of members of this family are available for RagA from Porphyromonas gingivalis, SusC from Bacteroides thetaiotaomicron, and OmpW from Bacteroides caccae. Members form pairs with members of the SusD/RagB family (pfam07980). Transporter complexes including these outer membrane proteins are likely to import large degradation products of proteins (e.g. RagA) or carbohydrates (e.g. SusC) as nutrients, rather than siderophores. [Transport and binding proteins, Unknown substrate]
Pssm-ID: 274948 [Multi-domain] Cd Length: 981 Bit Score: 716.29 E-value: 0e+00
CarboxypepD_reg-like domain; This domain family is found in bacteria, archaea and eukaryotes, ...
124-203
3.84e-19
CarboxypepD_reg-like domain; This domain family is found in bacteria, archaea and eukaryotes, and is approximately 90 amino acids in length. The family is found in association with pfam07715 and pfam00593.
Pssm-ID: 433425 [Multi-domain] Cd Length: 88 Bit Score: 83.02 E-value: 3.84e-19
TonB-dependent Receptor Plug Domain; The Plug domain has been shown to be an independently ...
210-337
1.54e-15
TonB-dependent Receptor Plug Domain; The Plug domain has been shown to be an independently folding subunit of the TonB-dependent receptors. It acts as the channel gate, blocking the pore until the channel is bound by ligand. At this point it under goes conformational changes opens the channel.
Pssm-ID: 462243 [Multi-domain] Cd Length: 107 Bit Score: 73.46 E-value: 1.54e-15
TonB dependent/Ligand-Gated channels are created by a monomeric 22 strand (22,24) ...
232-854
1.02e-13
TonB dependent/Ligand-Gated channels are created by a monomeric 22 strand (22,24) anti-parallel beta-barrel. Ligands apparently bind to the large extracellular loops. The N-terminal 150-200 residues form a plug from the periplasmic end of barrel. Energy (proton-motive force) and TonB-dependent conformational alteration of channel (parts of plug, and loops 7 and 8) allow passage of ligand. FepA residues 12-18 form the TonB box, which mediates the interaction with the TonB-containing inner membrane complex. TonB preferentially interacts with ligand-bound receptors. Transport thru the channel may resemble passage thru an air lock. In this model, ligand binding leads to closure of the extracellular end of pore, then a TonB-mediated signal facillitates opening of the interior side of pore, deforming the N-terminal plug and allowing passage of the ligand to the periplasm. Such a mechanism would prevent the free diffusion of small molecules thru the pore.
Pssm-ID: 238657 [Multi-domain] Cd Length: 635 Bit Score: 75.57 E-value: 1.02e-13
TonB-dependent outer membrane receptor, SusC/RagA subfamily, signature region; This model ...
313-343
3.50e-13
TonB-dependent outer membrane receptor, SusC/RagA subfamily, signature region; This model describes a 31-residue signature region of the SusC/RagA family of outer membrane proteins from the Bacteriodetes. While many TonB-dependent outer membrane receptors are associated with siderophore import, this family seems to include generalized nutrient receptors that may convey fairly large oligomers of protein or carbohydrate. This family occurs in high copy numbers in the most abundant species of the human gut microbiome.
Pssm-ID: 274949 [Multi-domain] Cd Length: 31 Bit Score: 64.14 E-value: 3.50e-13
TonB-dependent heme/hemoglobin receptor family protein; This model represents the ...
198-828
6.69e-06
TonB-dependent heme/hemoglobin receptor family protein; This model represents the TonB-dependent outer membrane heme/hemoglobin receptor/transporter found in bacteria which live in contact with animals (which contain hemoglobin or other heme-bearing globins) or legumes (which contain leghemoglobin). Some species having hits to this model such as Nostoc, Caulobacter and Chlorobium do not have an obvious source of hemoglobin-like proteins in their biological niche and so the possibility exists that they act on some other substance. [Transport and binding proteins, Cations and iron carrying compounds, Transport and binding proteins, Porins]
Pssm-ID: 273807 [Multi-domain] Cd Length: 665 Bit Score: 50.08 E-value: 6.69e-06
Peptidase associated domain: C-terminal domain of M14 N/E carboxypeptidase; putative folding, regulation, or interaction domain; This domain is found C-terminal to the M14 carboxypeptidase (CP) N/E subfamily containing zinc-binding enzymes that hydrolyze single C-terminal amino acids from polypeptide chains, and have a recognition site for the free C-terminal carboxyl group, which is a key determinant of specificity. The N/E subfamily includes enzymatically active members (carboxypeptidase N, E, M, D, and Z), as well as non-active members (carboxypeptidase-like protein 1, -2, aortic CP-like protein, and adipocyte enhancer binding protein-1) which lack the critical active site and substrate-binding residues considered necessary for activity. The active N/E enzymes fulfill a variety of cellular functions, including prohormone processing, regulation of peptide hormone activity, alteration of protein-protein or protein-cell interactions and transcriptional regulation. For M14 CPs, it has been suggested that this domain may assist in folding of the CP domain, regulate enzyme activity, or be involved in interactions with other proteins or with membranes; for carboxypeptidase M, it may interact with the bradykinin 1 receptor at the cell surface. This domain may also be found in other peptidase families.
Pssm-ID: 200604 [Multi-domain] Cd Length: 76 Bit Score: 42.90 E-value: 3.45e-05
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of ...
61-111
1.18e-03
Secretin and TonB N terminus short domain; This is a short domain found at the N-terminus of the Secretins of the bacterial type II/III secretory system as well as the TonB-dependent receptor proteins. These proteins are involved in TonB-dependent active uptake of selective substrates.
Pssm-ID: 429580 [Multi-domain] Cd Length: 51 Bit Score: 37.88 E-value: 1.18e-03
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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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