TroA family protein; most TroA-like proteins are encoded by ABC-type operons and appear to function as periplasmic components of ABC transporters in metal ion uptake.
Helical backbone metal receptor (TroA-like domain). These proteins have been shown to function ...
30-295
1.16e-129
Helical backbone metal receptor (TroA-like domain). These proteins have been shown to function in the ABC transport of ferric siderophores and metal ions such as Mn2+, Fe3+, Cu2+ and/or Zn2+. Their ligand binding site is formed in the interface between two globular domains linked by a single helix. Many of these proteins also possess a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence). The TroA-like proteins differ in their fold and ligand-binding mechanism from the PBPI and PBPII proteins, but are structurally similar, however, to the beta-subunit of the nitrogenase molybdenum-iron protein MoFe. Most TroA-like proteins are encoded by ABC-type operons and appear to function as periplasmic components of ABC transporters in metal ion uptake.
The actual alignment was detected with superfamily member cd01018:
Pssm-ID: 469696 [Multi-domain] Cd Length: 266 Bit Score: 369.38 E-value: 1.16e-129
Metal binding protein ZntC. These proteins are predicted to function as initial receptors in ...
30-295
1.16e-129
Metal binding protein ZntC. These proteins are predicted to function as initial receptors in ABC transport of metal ions. They belong to the TroA superfamily of helical backbone metal receptor proteins that share a distinct fold and ligand binding mechanism. They are comprised of two globular subdomains connected by a long alpha helix and bind their specific ligands in the cleft between these domains. In addition, many of these proteins possess a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238500 [Multi-domain] Cd Length: 266 Bit Score: 369.38 E-value: 1.16e-129
Zinc-uptake complex component A periplasmic; ZnuA includes periplasmic solute binding proteins ...
33-276
1.91e-71
Zinc-uptake complex component A periplasmic; ZnuA includes periplasmic solute binding proteins such as TroA that interacts with an ATP-binding cassette transport system in Treponema pallidum. ZnuA is part of the bacterial zinc-uptake complex ZnuABC, whose components are the following families, ZinT, pfam09223, pfam00950, pfam00005, all of which are regulated by the transcription-regulator family FUR, pfam01475. ZinT acts as a Zn2+-buffering protein that delivers Zn2+ to ZnuA (TroA), a high-affinity zinc-uptake protein. In Gram-negative bacteria the ZnuABC transporter system ensures an adequate import of zinc in Zn2+-poor environments, such as those encountered by pathogens within the infected host.
Pssm-ID: 460151 [Multi-domain] Cd Length: 269 Bit Score: 221.66 E-value: 1.91e-71
Metal binding protein ZntC. These proteins are predicted to function as initial receptors in ...
30-295
1.16e-129
Metal binding protein ZntC. These proteins are predicted to function as initial receptors in ABC transport of metal ions. They belong to the TroA superfamily of helical backbone metal receptor proteins that share a distinct fold and ligand binding mechanism. They are comprised of two globular subdomains connected by a long alpha helix and bind their specific ligands in the cleft between these domains. In addition, many of these proteins possess a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238500 [Multi-domain] Cd Length: 266 Bit Score: 369.38 E-value: 1.16e-129
Zinc-uptake complex component A periplasmic; ZnuA includes periplasmic solute binding proteins ...
33-276
1.91e-71
Zinc-uptake complex component A periplasmic; ZnuA includes periplasmic solute binding proteins such as TroA that interacts with an ATP-binding cassette transport system in Treponema pallidum. ZnuA is part of the bacterial zinc-uptake complex ZnuABC, whose components are the following families, ZinT, pfam09223, pfam00950, pfam00005, all of which are regulated by the transcription-regulator family FUR, pfam01475. ZinT acts as a Zn2+-buffering protein that delivers Zn2+ to ZnuA (TroA), a high-affinity zinc-uptake protein. In Gram-negative bacteria the ZnuABC transporter system ensures an adequate import of zinc in Zn2+-poor environments, such as those encountered by pathogens within the infected host.
Pssm-ID: 460151 [Multi-domain] Cd Length: 269 Bit Score: 221.66 E-value: 1.91e-71
Metal binding protein AdcA. These proteins have been shown to function in the ABC uptake of ...
28-299
1.55e-66
Metal binding protein AdcA. These proteins have been shown to function in the ABC uptake of Zn2+ and Mn2+ and in competence for genetic transformation and adhesion. The AdcA proteins belong to the TroA superfamily of helical backbone metal receptor proteins that share a distinct fold and ligand binding mechanism. They are comprised of two globular subdomains connected by a long alpha helix and they bind their ligand in the cleft between these domains. In addition, many of these proteins have a low complexity region containing metal binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238499 [Multi-domain] Cd Length: 282 Bit Score: 209.46 E-value: 1.55e-66
Metal binding protein PsaA. These proteins have been shown to function as initial receptors ...
24-274
5.02e-41
Metal binding protein PsaA. These proteins have been shown to function as initial receptors in ABC transport of Mn2+ and as surface adhesins in some eubacterial species. They belong to the TroA superfamily of periplasmic metal binding proteins that share a distinct fold and ligand binding mechanism. A typical TroA protein is comprised of two globular subdomains connected by a single helix and can bind the metal ion in the cleft between these domains. In addition, these proteins sometimes have a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238557 [Multi-domain] Cd Length: 287 Bit Score: 143.57 E-value: 5.02e-41
Zinc binding protein ZnuA. These proteins have been shown to function as initial receptors in ...
30-280
1.88e-39
Zinc binding protein ZnuA. These proteins have been shown to function as initial receptors in the ABC uptake of Zn2+. They belong to the TroA superfamily of periplasmic metal binding proteins that share a distinct fold and ligand binding mechanism. They are comprised of two globular subdomains connected by a single helix and bind their specific ligands in the cleft between these domains. A typical TroA protein is comprised of two globular subdomains connected by a single helix and can bind the metal ion in the cleft between these domains. In addition, these proteins sometimes have a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238501 [Multi-domain] Cd Length: 286 Bit Score: 139.43 E-value: 1.88e-39
Metal binding protein TroA_b. These proteins are predicted to function as initial receptors ...
45-296
1.82e-13
Metal binding protein TroA_b. These proteins are predicted to function as initial receptors in ABC transport of metal ions. They belong to the TroA superfamily of helical backbone metal receptor proteins that share a distinct fold and ligand binding mechanism. A typical TroA protein is comprised of two globular subdomains connected by a single helix and can bind the metal ion in the cleft between these domains. In addition, these proteins sometimes have a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238502 [Multi-domain] Cd Length: 264 Bit Score: 69.01 E-value: 1.82e-13
Periplasmic binding protein TroA_c. These proteins are predicted to function as initial ...
30-236
9.73e-10
Periplasmic binding protein TroA_c. These proteins are predicted to function as initial receptors in the ABC metal ion uptake in eubacteria and archaea. They belong to the TroA superfamily of helical backbone metal receptor proteins that share a distinct fold and ligand binding mechanism. A typical TroA protein is comprised of two globular subdomains connected by a single helix and can bind their ligands in the cleft between these domains.
Pssm-ID: 238565 [Multi-domain] Cd Length: 203 Bit Score: 57.12 E-value: 9.73e-10
Metal binding protein TroA. These proteins have been shown to function as initial receptors in ...
30-255
2.29e-08
Metal binding protein TroA. These proteins have been shown to function as initial receptors in ABC transport of Zn2+ and possibly Fe3+ in many eubacterial species. The TroA proteins belong to the TroA superfamily of periplasmic metal binding proteins that share a distinct fold and ligand binding mechanism. A typical TroA protein is comprised of two globular subdomains connected by a single helix and can bind the metal ion in the cleft between these domains. In addition, these proteins sometimes have a low complexity region containing a metal-binding histidine-rich motif (repetitive HDH sequence).
Pssm-ID: 238498 [Multi-domain] Cd Length: 276 Bit Score: 53.91 E-value: 2.29e-08
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.
Click on the triangle to view details about the feature, including a multiple sequence alignment
of your query sequence and the protein sequences used to curate the domain model,
where hash marks (#) above the aligned sequences show the location of the conserved feature residues.
The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
Click on the triangle for interactive 3D structure viewing options.
Functional characterization of the conserved domain architecture found on the query.
Click here to see more details.
This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
(labeled illustration) or all hits
(labeled illustration).
Domains are color coded according to superfamilies
to which they have been assigned. Hits with scores that pass a domain-specific threshold
(specific hits) are drawn in bright colors.
Others (non-specific hits) and
superfamily placeholders are drawn in pastel colors.
if a domain or superfamily has been annotated with functional sites (conserved features),
they are mapped to the query sequence and indicated through sets of triangles
with the same color and shade of the domain or superfamily that provides the annotation. Mouse over the colored bars or triangles to see descriptions of the domains and features.
click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
mapped to the query sequence.
Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
meet or exceed the RPS-BLAST threshold for statistical significance (default E-value cutoff of 0.01, or an E-value selected by user via the
advanced search options)
the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
(CDART).
Modify your query to search against a different database and/or use advanced search options
