Bug (Bordetella uptake gene) family tripartite tricarboxylate transporter (TTT) substrate binding protein is a periplasmic solute-binding (PBP) receptor that is a component of a TTT
Bug (Bordetella uptake gene) protein family of periplasmic solute-binding receptors; contains ...
26-319
3.90e-78
Bug (Bordetella uptake gene) protein family of periplasmic solute-binding receptors; contains the type 2 periplasmic binding fold; The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) proteins present in a number of bacterial species, but mainly in proteobacteria. In eubacteria, at least three families of periplasmic binding-protein dependent transporters are known: the ATP-binding cassette (ABC) transporters, the tripartite ATP-independent periplasmic transporters, and the tripartite tricarboxylate transporters (TTT). Bug proteins are the PBP components of the TTT. Their expansive expansion in proteobacteria indicates a large functional diversity. The best studied examples are Bordetella pertussis BugD, which is an aspartic acid transporter, and BugE, which is glutamate transporter.
Pssm-ID: 270234 Cd Length: 291 Bit Score: 240.45 E-value: 3.90e-78
Tripartite tricarboxylate transporter family receptor; These probable extra-cytoplasmic solute ...
49-318
2.56e-21
Tripartite tricarboxylate transporter family receptor; These probable extra-cytoplasmic solute receptors are strongly overrepresented in several beta-proteobacteria. This family, formerly known as Bug - Bordetella uptake gene (bug) product - is a family of bacterial tripartite tricarboxylate receptors of the extracytoplasmic solute binding receptor-dependent transporter group of families, distinct from the ABC and TRAP-T families. The TctABC system has been characterized in S. typhimurium, and TctC is the extracytoplasmic tricarboxylate-binding receptor which binds the transporters TctA and TctB, two integral membrane proteins. Complete three-component systems are found only in bacteria.
Pssm-ID: 397461 Cd Length: 274 Bit Score: 91.38 E-value: 2.56e-21
TRAP transporter solute receptor, TAXI family; This family is one of at least three major ...
1-204
1.63e-07
TRAP transporter solute receptor, TAXI family; This family is one of at least three major families of extracytoplasmic solute receptor (ESR) for TRAP (Tripartite ATP-independent Periplasmic Transporter) transporters. The others are the DctP (TIGR00787) and SmoM (pfam03480) families. These transporters are secondary (driven by an ion gradient) but composed of three polypeptides, although in some species the 4-TM and 12-TM integral membrane proteins are fused. Substrates for this transporter family are not fully characterized but, besides C4 dicarboxylates, may include mannitol and other compounds. [Transport and binding proteins, Unknown substrate]
Pssm-ID: 273982 [Multi-domain] Cd Length: 320 Bit Score: 51.95 E-value: 1.63e-07
Bug (Bordetella uptake gene) protein family of periplasmic solute-binding receptors; contains ...
26-319
3.90e-78
Bug (Bordetella uptake gene) protein family of periplasmic solute-binding receptors; contains the type 2 periplasmic binding fold; The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) proteins present in a number of bacterial species, but mainly in proteobacteria. In eubacteria, at least three families of periplasmic binding-protein dependent transporters are known: the ATP-binding cassette (ABC) transporters, the tripartite ATP-independent periplasmic transporters, and the tripartite tricarboxylate transporters (TTT). Bug proteins are the PBP components of the TTT. Their expansive expansion in proteobacteria indicates a large functional diversity. The best studied examples are Bordetella pertussis BugD, which is an aspartic acid transporter, and BugE, which is glutamate transporter.
Pssm-ID: 270234 Cd Length: 291 Bit Score: 240.45 E-value: 3.90e-78
Aromatic solutes transporter of Bug (Bordetella uptake gene) protein family; contains the ...
32-319
2.12e-32
Aromatic solutes transporter of Bug (Bordetella uptake gene) protein family; contains the type 2 periplasmic binding fold; Bug27 binds non-carboxylated solute nicotinamide, in contrast to BugD (aspartic acid transporter) and BugE (glutamate transporter) which both bind aliphatic carboxylated ligands. The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) receptors present in a number of bacterial species, but mainly in proteobacteria. Bug proteins are the PBP components of the tripartite carboxylate transporters (TTT). Their expansive expansion in proteobacteria indicates a large functional diversity.
Pssm-ID: 270296 Cd Length: 291 Bit Score: 121.84 E-value: 2.12e-32
Uncharacterized NagM-like protein of Bug (Bordetella uptake gene) protein family; contains the ...
22-310
4.57e-30
Uncharacterized NagM-like protein of Bug (Bordetella uptake gene) protein family; contains the type 2 periplasmic binding fold; The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) receptors present in a number of bacterial species, but mainly in proteobacteria. Bug proteins are the PBP components of the tripartite carboxylate transporters (TTT). Their expansive expansion in proteobacteria indicates a large functional diversity. The best studied examples are Bordetella pertussis BugD, which is an aspartic acid transporter, and BugE, which is glutamate transporter.
Pssm-ID: 270297 Cd Length: 292 Bit Score: 115.45 E-value: 4.57e-30
Tripartite tricarboxylate transporter family receptor; These probable extra-cytoplasmic solute ...
49-318
2.56e-21
Tripartite tricarboxylate transporter family receptor; These probable extra-cytoplasmic solute receptors are strongly overrepresented in several beta-proteobacteria. This family, formerly known as Bug - Bordetella uptake gene (bug) product - is a family of bacterial tripartite tricarboxylate receptors of the extracytoplasmic solute binding receptor-dependent transporter group of families, distinct from the ABC and TRAP-T families. The TctABC system has been characterized in S. typhimurium, and TctC is the extracytoplasmic tricarboxylate-binding receptor which binds the transporters TctA and TctB, two integral membrane proteins. Complete three-component systems are found only in bacteria.
Pssm-ID: 397461 Cd Length: 274 Bit Score: 91.38 E-value: 2.56e-21
Aspartic acid transporter of Bug (Bordetella uptake gene) protein family; contains the type 2 ...
32-319
1.20e-19
Aspartic acid transporter of Bug (Bordetella uptake gene) protein family; contains the type 2 periplasmic binding fold; The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) receptors present in a number of bacterial species, but mainly in proteobacteria. Bug proteins are the PBP components of the tripartite carboxylate transporters (TTT). Their expansive expansion in proteobacteria indicates a large functional diversity. The best studied examples are Bordetella pertussis BugD, which is an aspartic acid transporter, and BugE, which is glutamate transporter.
Pssm-ID: 270294 Cd Length: 294 Bit Score: 87.43 E-value: 1.20e-19
Glutamate transporter of Bug (Bordetella uptake gene) protein family; contains the type 2 ...
32-247
6.05e-19
Glutamate transporter of Bug (Bordetella uptake gene) protein family; contains the type 2 periplasmic binding fold; The Bug (Bordetella uptake gene) protein family is a large family of periplasmic solute-binding (PBP) receptors present in a number of bacterial species, but mainly in proteobacteria. Bug proteins are the PBP components of the tripartite carboxylate transporters (TTT). Their expansive expansion in proteobacteria indicates a large functional diversity. The best studied examples are Bordetella pertussis BugD, which is an aspartic acid transporter, and BugE, which is glutamate transporter.
Pssm-ID: 270295 Cd Length: 292 Bit Score: 85.09 E-value: 6.05e-19
TRAP transporter solute receptor, TAXI family; This family is one of at least three major ...
1-204
1.63e-07
TRAP transporter solute receptor, TAXI family; This family is one of at least three major families of extracytoplasmic solute receptor (ESR) for TRAP (Tripartite ATP-independent Periplasmic Transporter) transporters. The others are the DctP (TIGR00787) and SmoM (pfam03480) families. These transporters are secondary (driven by an ion gradient) but composed of three polypeptides, although in some species the 4-TM and 12-TM integral membrane proteins are fused. Substrates for this transporter family are not fully characterized but, besides C4 dicarboxylates, may include mannitol and other compounds. [Transport and binding proteins, Unknown substrate]
Pssm-ID: 273982 [Multi-domain] Cd Length: 320 Bit Score: 51.95 E-value: 1.63e-07
Substrate binding domain of TAXI proteins of the tripartite ATP-independent periplasmic ...
91-241
7.41e-05
Substrate binding domain of TAXI proteins of the tripartite ATP-independent periplasmic transporters; the type 2 periplasmic binding protein fold; This group includes Thermus thermophilus GluBP (TtGluBP) of TAXI-TRAP family and closely related proteins. TRAP transporters are ubiquitous in prokaryotes, but absent from eukaryotes. They are comprised of an SBP (substrate-binding protein) of the DctP or TAXI families and two unequally sized integral membrane components. Although TtGluBP is predicted to be an L-glutamate and/or an L-glutamine-binding protein, the substrate spectrum of TAXI proteins remains to be defined. A sequence-homology search also shows that TtGluBP shares low sequence homology with putative immunogenic proteins of uncharacterized function. The substrate-binding domain of TAXI proteins 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 tworeceptor cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis.
Pssm-ID: 270238 [Multi-domain] Cd Length: 285 Bit Score: 43.76 E-value: 7.41e-05
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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