osmoprotectant transport system substrate-binding [Erysipelotrichaceae bacterium]
Protein Classification
type 2 periplasmic-binding domain-containing protein( domain architecture ID 229383)
type 2 periplasmic-binding protein (PBP2) is typically comprised of two globular subdomains connected by a flexible hinge; it binds its ligand in the cleft between these domains in a manner resembling a Venus flytrap; similar to the ligand-binding domains found in solute binding proteins that serve as initial receptors in the transport, signal transduction and channel gating
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||
| Periplasmic_Binding_Protein_Type_2 super family | cl21456 | Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent ... |
28-302 | 8.56e-119 | |||||
Type 2 periplasmic binding fold superfamily; This evolutionary model and hierarchy represent the ligand-binding domains found in solute binding proteins that serve as initial receptors in the transport, signal transduction and channel gating. The PBP2 proteins share the same architecture as periplasmic binding proteins type 1 (PBP1), but have a different topology. They are typically comprised of two globular subdomains connected by a flexible hinge and bind their ligand in the cleft between these domains in a manner resembling a Venus flytrap. The origin of PBP module can be traced across the distant phyla, including eukaryotes, archebacteria, and prokaryotes. The majority of PBP2 proteins are involved in the uptake of a variety of soluble substrates such as phosphate, sulfate, polysaccharides, lysine/arginine/ornithine, and histidine. After binding their specific ligand with high affinity, they can interact with a cognate membrane transport complex comprised of two integral membrane domains and two cytoplasmically located ATPase domains. This interaction triggers the ligand translocation across the cytoplasmic membrane energized by ATP hydrolysis. Besides transport proteins, the family includes ionotropic glutamate receptors and unorthodox sensor proteins involved in signal transduction. The substrate binding domain of the LysR transcriptional regulators and the oligopeptide-like transport systems also contain the type 2 periplasmic binding fold and thus they are significantly homologous to that of the PBP2; however, these two families are grouped into a separate hierarchy of the PBP2 superfamily due to the large number of protein sequences. The actual alignment was detected with superfamily member cd13616: Pssm-ID: 473866 Cd Length: 274 Bit Score: 342.39 E-value: 8.56e-119
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| Name | Accession | Description | Interval | E-value | |||||
| PBP2_OsmF | cd13616 | Substrate-binding domain OsmF of an osmoregulated ABC-type transporter; the type 2 ... |
28-302 | 8.56e-119 | |||||
Substrate-binding domain OsmF of an osmoregulated ABC-type transporter; the type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein OsmF of an ABC transporter (YehZYXW) from Escherichia coli is predicted to be involved in uptake of compatible solutes such as choline, L-proline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. OsmF 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. Pssm-ID: 270334 Cd Length: 274 Bit Score: 342.39 E-value: 8.56e-119
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| OsmF | COG1732 | Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system ... |
1-305 | 2.19e-89 | |||||
Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system (osmoprotectant binding protein) [Cell wall/membrane/envelope biogenesis]; Pssm-ID: 441338 [Multi-domain] Cd Length: 294 Bit Score: 268.55 E-value: 2.19e-89
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| OpuAC | pfam04069 | Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity ... |
27-304 | 5.74e-40 | |||||
Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity multicomponent binding-protein-dependent transport system involved in bacterial osmoregulation. This domain is often fused to the permease component of the transporter complex. Family members are often integral membrane proteins or predicted to be attached to the membrane by a lipid anchor. Glycine betaine is involved in protection from high osmolarity environments for example in Bacillus subtilis. The family member OpuBC is closely related, and involved in choline transport. Choline is necessary for the biosynthesis of glycine betaine. L-carnitine is important for osmoregulation in Listeria monocytogenes. Family also contains proteins binding l-proline (ProX), histidine (HisX) and taurine (TauA). Pssm-ID: 397954 [Multi-domain] Cd Length: 257 Bit Score: 140.54 E-value: 5.74e-40
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| Name | Accession | Description | Interval | E-value | |||||
| PBP2_OsmF | cd13616 | Substrate-binding domain OsmF of an osmoregulated ABC-type transporter; the type 2 ... |
28-302 | 8.56e-119 | |||||
Substrate-binding domain OsmF of an osmoregulated ABC-type transporter; the type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein OsmF of an ABC transporter (YehZYXW) from Escherichia coli is predicted to be involved in uptake of compatible solutes such as choline, L-proline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. OsmF 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. Pssm-ID: 270334 Cd Length: 274 Bit Score: 342.39 E-value: 8.56e-119
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| OsmF | COG1732 | Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system ... |
1-305 | 2.19e-89 | |||||
Periplasmic glycine betaine/choline-binding (lipo)protein of an ABC-type transport system (osmoprotectant binding protein) [Cell wall/membrane/envelope biogenesis]; Pssm-ID: 441338 [Multi-domain] Cd Length: 294 Bit Score: 268.55 E-value: 2.19e-89
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| PBP2_osmoprotectants | cd13528 | Substrate-binding domain of osmoregulatory ABC-type transporters; the type 2 ... |
28-303 | 5.96e-70 | |||||
Substrate-binding domain of osmoregulatory ABC-type transporters; the type 2 periplasmic-binding protein fold; This family represents the periplasmic substrate-binding component of ABC transport systems that are involved in uptake of osmoprotectants (also termed compatible solutes) such as betaine, choline, proline betaine, carnitine, and L-proline. To counteract the efflux of water, bacteria and archaea accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270246 [Multi-domain] Cd Length: 264 Bit Score: 217.85 E-value: 5.96e-70
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| PBP2_YehZ | cd13611 | Substrate-binding domain YehZ of an osmoregulated ABC-type transporter; the type 2 ... |
37-303 | 2.17e-60 | |||||
Substrate-binding domain YehZ of an osmoregulated ABC-type transporter; the type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein YehZ of Clostridium sticklandii is predicted to be involved in uptake of compatible solutes such as choline, L-proline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. YehZ 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. Pssm-ID: 270329 Cd Length: 267 Bit Score: 193.57 E-value: 2.17e-60
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| PBP2_QAT_like | cd13614 | Substrate-binding domain of quaternary amine ABC-type transporter; the type 2 ... |
28-303 | 4.26e-53 | |||||
Substrate-binding domain of quaternary amine ABC-type transporter; the type 2 periplasmic-binding protein fold; This group includes the periplasmic substrate-binding component of a putative quaternary amine ABC transport system that is predicted to be involved in uptake of osmoprotectants (also termed compatible solutes) such as betaine, choline, proline betaine, carnitine, and L-proline. The relative substrate preference of this group is not known. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270332 Cd Length: 264 Bit Score: 174.50 E-value: 4.26e-53
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| PBP2_Opu_like_1 | cd13609 | Substrate-binding domain of putative ABC-type osmoprotectant uptake system; the type 2 ... |
29-303 | 5.62e-43 | |||||
Substrate-binding domain of putative ABC-type osmoprotectant uptake system; the type 2 periplasmic-binding protein fold; This group includes the periplasmic substrate-binding component of a putative ABC transport system that is predicted to be involved in uptake of osmoprotectants (also termed compatible solutes) such as betaine, choline, proline betaine, carnitine, and L-proline. The relative substrate preference of this group is not known. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270327 Cd Length: 263 Bit Score: 148.52 E-value: 5.62e-43
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| OpuAC | pfam04069 | Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity ... |
27-304 | 5.74e-40 | |||||
Substrate binding domain of ABC-type glycine betaine transport system; Part of a high affinity multicomponent binding-protein-dependent transport system involved in bacterial osmoregulation. This domain is often fused to the permease component of the transporter complex. Family members are often integral membrane proteins or predicted to be attached to the membrane by a lipid anchor. Glycine betaine is involved in protection from high osmolarity environments for example in Bacillus subtilis. The family member OpuBC is closely related, and involved in choline transport. Choline is necessary for the biosynthesis of glycine betaine. L-carnitine is important for osmoregulation in Listeria monocytogenes. Family also contains proteins binding l-proline (ProX), histidine (HisX) and taurine (TauA). Pssm-ID: 397954 [Multi-domain] Cd Length: 257 Bit Score: 140.54 E-value: 5.74e-40
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| PBP2_ProWY | cd13615 | Substrate-binding domain of ABC-type osmoregulated transporter; the type 2 periplasmic-binding ... |
28-302 | 1.58e-38 | |||||
Substrate-binding domain of ABC-type osmoregulated transporter; the type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein ProWY of Streptococcus thermophilus is predicted to be involved in uptake of compatible solutes such as choline, L-proline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. ProWY 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. Pssm-ID: 270333 Cd Length: 262 Bit Score: 136.80 E-value: 1.58e-38
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| PBP2_ProX_like | cd13606 | Bacterial substrate-binding protein ProX of ABC-type osmoregulated transporter and its related ... |
28-302 | 1.45e-34 | |||||
Bacterial substrate-binding protein ProX of ABC-type osmoregulated transporter and its related proteins; the type 2 periplasmic-binding protein fold; This group includes periplasmic substrate-binding component of ABC transport systems from gram-negative and -positive bacteria that are involved in uptake of osmoprotectants (also termed compatible solutes) such as betaine, choline, proline betaine, carnitine, and L-proline. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270324 Cd Length: 260 Bit Score: 126.14 E-value: 1.45e-34
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| PBP2_ChoS | cd13610 | Substrate-binding domain ChoS of an osmoregulated ABC-type transporter and related proteins; ... |
29-303 | 1.82e-33 | |||||
Substrate-binding domain ChoS of an osmoregulated ABC-type transporter and related proteins; type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein ChoS of Lactococcus lactis is predicted to be involved in uptake of compatible solutes such as choline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. ChoS 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. Pssm-ID: 270328 Cd Length: 264 Bit Score: 123.47 E-value: 1.82e-33
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| PBP2_ProWX | cd13612 | Substrate-binding protein ProWX of ABC-type osmoregulated transporter and its related proteins; ... |
28-305 | 2.51e-33 | |||||
Substrate-binding protein ProWX of ABC-type osmoregulated transporter and its related proteins; the type 2 periplasmic-binding protein fold; Osmoprotectant binding lipoprotein ProWX of Helicobacter pylori is predicted to be involved in uptake of compatible solutes such as choline, L-proline and glycine betaine, but the relative substrate preference is not known. To counteract the efflux of water, microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. ProWX 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. Pssm-ID: 270330 Cd Length: 267 Bit Score: 123.12 E-value: 2.51e-33
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| PBP2_OpuCC_like | cd13608 | Substrate-binding protein OpuCC of ABC-type osmoregulatory transporter and related proteins; ... |
28-302 | 1.54e-31 | |||||
Substrate-binding protein OpuCC of ABC-type osmoregulatory transporter and related proteins; the type 2 periplasmic-binding protein fold; This subfamily includes the periplasmic substrate-binding protein OpuCC of the ABC transporter OpuC (where Opu is osmoprotectant uptake), which can recognize a broad spectrum of compatible solutes, and its paralog OpuBC that can solely bind choline. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270326 Cd Length: 265 Bit Score: 118.49 E-value: 1.54e-31
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| PBP2_Opu_like_2 | cd13613 | Substrate-binding domain of putative ABC-type osmoprotectant uptake system; the type 2 ... |
28-302 | 1.60e-25 | |||||
Substrate-binding domain of putative ABC-type osmoprotectant uptake system; the type 2 periplasmic-binding protein fold; This group includes the periplasmic substrate-binding component of a putative ABC transport system that is predicted to be involved in uptake of osmoprotectants (also termed compatible solutes) such as betaine, choline, proline betaine, carnitine, and L-proline. The relative substrate preference of this group is not known. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. This substrate-binding domain 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. Pssm-ID: 270331 Cd Length: 264 Bit Score: 102.42 E-value: 1.60e-25
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| PBP2_AfProX_like | cd13607 | Substrate-binding protein ProX of ABC-type osmoregulatory transporter from Archaeoglobus ... |
28-303 | 9.94e-23 | |||||
Substrate-binding protein ProX of ABC-type osmoregulatory transporter from Archaeoglobus fulgidus and its related proteins; the type 2 periplasmic-binding protein fold; This subfamily includes the periplasmic substrate-binding protein ProX from the hyperthermophilic archaeon Archaeoglobus fulgidus and its related proteins. AfProX is involved in uptake of compatible solutes such as the trimethylammonium compound glycine betaine and the dimethylammonium compound proline betaine, but the relative substrate preference is not known. To counteract the efflux of water, many microorganisms accumulate the compatible solutes for a sustained adjustment to high osmolarity surroundings. AfProX 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. Pssm-ID: 270325 Cd Length: 261 Bit Score: 94.57 E-value: 9.94e-23
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