trigger factor functions as a peptidylprolyl isomerase that is involved in protein export and acts as a chaperone by maintaining the newly synthesized protein in an open conformation
trigger factor; Trigger factor is a ribosome-associated molecular chaperone and is the first ...
11-400
7.14e-113
trigger factor; Trigger factor is a ribosome-associated molecular chaperone and is the first chaperone to interact with nascent polypeptide. Trigger factor can bind at the same time as the signal recognition particle (SRP), but is excluded by the SRP receptor (FtsY). The central domain of trigger factor has peptidyl-prolyl cis/trans isomerase activity. This protein is found in a single copy in virtually every bacterial genome. [Protein fate, Protein folding and stabilization]
Pssm-ID: 272913 [Multi-domain] Cd Length: 410 Bit Score: 338.38 E-value: 7.14e-113
Bacterial trigger factor protein (TF); In the E. coli cytosol, a fraction of the newly ...
1-149
4.35e-48
Bacterial trigger factor protein (TF); In the E. coli cytosol, a fraction of the newly synthesized proteins requires the activity of molecular chaperones for folding to the native state. The major chaperones implicated in this folding process are the ribosome-associated Trigger Factor (TF), and the DnaK and GroEL chaperones with their respective co-chaperones. Trigger Factor is an ATP-independent chaperone and displays chaperone and peptidyl-prolyl-cis-trans-isomerase (PPIase) activities in vitro. It is composed of at least three domains, an N-terminal domain which mediates association with the large ribosomal subunit, a central substrate binding and PPIase domain with homology to FKBP proteins, and a C-terminal domain of unknown function. The positioning of TF at the peptide exit channel, together with its ability to interact with nascent chains as short as 57 residues renders TF a prime candidate for being the first chaperone that binds to the nascent polypeptide chains. This family represents the N-terminal region of the protein.
Pssm-ID: 461717 [Multi-domain] Cd Length: 144 Bit Score: 161.87 E-value: 4.35e-48
trigger factor; Trigger factor is a ribosome-associated molecular chaperone and is the first ...
11-400
7.14e-113
trigger factor; Trigger factor is a ribosome-associated molecular chaperone and is the first chaperone to interact with nascent polypeptide. Trigger factor can bind at the same time as the signal recognition particle (SRP), but is excluded by the SRP receptor (FtsY). The central domain of trigger factor has peptidyl-prolyl cis/trans isomerase activity. This protein is found in a single copy in virtually every bacterial genome. [Protein fate, Protein folding and stabilization]
Pssm-ID: 272913 [Multi-domain] Cd Length: 410 Bit Score: 338.38 E-value: 7.14e-113
Bacterial trigger factor protein (TF); In the E. coli cytosol, a fraction of the newly ...
1-149
4.35e-48
Bacterial trigger factor protein (TF); In the E. coli cytosol, a fraction of the newly synthesized proteins requires the activity of molecular chaperones for folding to the native state. The major chaperones implicated in this folding process are the ribosome-associated Trigger Factor (TF), and the DnaK and GroEL chaperones with their respective co-chaperones. Trigger Factor is an ATP-independent chaperone and displays chaperone and peptidyl-prolyl-cis-trans-isomerase (PPIase) activities in vitro. It is composed of at least three domains, an N-terminal domain which mediates association with the large ribosomal subunit, a central substrate binding and PPIase domain with homology to FKBP proteins, and a C-terminal domain of unknown function. The positioning of TF at the peptide exit channel, together with its ability to interact with nascent chains as short as 57 residues renders TF a prime candidate for being the first chaperone that binds to the nascent polypeptide chains. This family represents the N-terminal region of the protein.
Pssm-ID: 461717 [Multi-domain] Cd Length: 144 Bit Score: 161.87 E-value: 4.35e-48
Bacterial trigger factor protein (TF) C-terminus; In the E. coli cytosol, a fraction of the ...
260-389
1.11e-16
Bacterial trigger factor protein (TF) C-terminus; In the E. coli cytosol, a fraction of the newly synthesized proteins requires the activity of molecular chaperones for folding to the native state. The major chaperones implicated in this folding process are the ribosome-associated Trigger Factor (TF), and the DnaK and GroEL chaperones with their respective co-chaperones. Trigger Factor is an ATP-independent chaperone and displays chaperone and peptidyl-prolyl-cis-trans-isomerase (PPIase) activities in vitro. It is composed of at least three domains, an N-terminal domain which mediates association with the large ribosomal subunit, a central substrate binding and PPIase domain with homology to FKBP proteins, and a C-terminal domain of unknown function. The positioning of TF at the peptide exit channel, together with its ability to interact with nascent chains as short as 57 residues renders TF a prime candidate for being the first chaperone that binds to the nascent polypeptide chains. This family represents the C-terminal region of the protein.
Pssm-ID: 428592 [Multi-domain] Cd Length: 162 Bit Score: 77.28 E-value: 1.11e-16
SurA N-terminal domain; This domain is found at the N-terminus of the chaperone SurA. It is a ...
329-388
6.10e-03
SurA N-terminal domain; This domain is found at the N-terminus of the chaperone SurA. It is a helical domain of unknown function. The C-terminus of the SurA protein folds back and forms part of this domain also but is not included in the current alignment.
Pssm-ID: 430518 [Multi-domain] Cd Length: 118 Bit Score: 36.49 E-value: 6.10e-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.
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
