pelota family protein similar to protein pelota, which is a component of the Pelota-HBS1L complex, a complex that recognizes stalled ribosomes and triggers the No-Go Decay (NGD) pathway
mRNA surveillance protein pelota; This model describes the Drosophila protein Pelota, the ...
1-370
5.66e-65
mRNA surveillance protein pelota; This model describes the Drosophila protein Pelota, the budding yeast protein DOM34 which it can replace, and a set of closely related archaeal proteins. Members contain a proposed RNA binding motif. The meiotic defect in pelota mutants may be a complex result of a protein translation defect, as suggested in yeast by ribosomal protein RPS30A being a multicopy suppressor and by an altered polyribosome profile in DOM34 mutants rescued by RPS30A. This family is homologous to a family of peptide chain release factors. Pelota is proposed to act in protein translation. [Protein synthesis, Translation factors]
Pssm-ID: 129217 [Multi-domain] Cd Length: 351 Bit Score: 210.44 E-value: 5.66e-65
eRF1 domain 1; The release factor eRF1 terminates protein biosynthesis by recognising stop ...
1-128
3.86e-54
eRF1 domain 1; The release factor eRF1 terminates protein biosynthesis by recognising stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase centre. The crystal structure of human eRF1 is known. The overall shape and dimensions of eRF1 resemble a tRNA molecule with domains 1, 2, and 3 of eRF1 corresponding to the anticodon loop, aminoacyl acceptor stem, and T stem of a tRNA molecule, respectively. The position of the essential GGQ motif at an exposed tip of domain 2 suggests that the Gln residue coordinates a water molecule to mediate the hydrolytic activity at the peptidyl transferase centre. A conserved groove on domain 1, 80 A from the GGQ motif, is proposed to form the codon recognition site. This family also includes other proteins for which the precise molecular function is unknown. Many of them are from Archaebacteria. These proteins may also be involved in translation termination but this awaits experimental verification.
Pssm-ID: 460930 [Multi-domain] Cd Length: 122 Bit Score: 174.60 E-value: 3.86e-54
mRNA surveillance protein pelota; This model describes the Drosophila protein Pelota, the ...
1-370
5.66e-65
mRNA surveillance protein pelota; This model describes the Drosophila protein Pelota, the budding yeast protein DOM34 which it can replace, and a set of closely related archaeal proteins. Members contain a proposed RNA binding motif. The meiotic defect in pelota mutants may be a complex result of a protein translation defect, as suggested in yeast by ribosomal protein RPS30A being a multicopy suppressor and by an altered polyribosome profile in DOM34 mutants rescued by RPS30A. This family is homologous to a family of peptide chain release factors. Pelota is proposed to act in protein translation. [Protein synthesis, Translation factors]
Pssm-ID: 129217 [Multi-domain] Cd Length: 351 Bit Score: 210.44 E-value: 5.66e-65
eRF1 domain 1; The release factor eRF1 terminates protein biosynthesis by recognising stop ...
1-128
3.86e-54
eRF1 domain 1; The release factor eRF1 terminates protein biosynthesis by recognising stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase centre. The crystal structure of human eRF1 is known. The overall shape and dimensions of eRF1 resemble a tRNA molecule with domains 1, 2, and 3 of eRF1 corresponding to the anticodon loop, aminoacyl acceptor stem, and T stem of a tRNA molecule, respectively. The position of the essential GGQ motif at an exposed tip of domain 2 suggests that the Gln residue coordinates a water molecule to mediate the hydrolytic activity at the peptidyl transferase centre. A conserved groove on domain 1, 80 A from the GGQ motif, is proposed to form the codon recognition site. This family also includes other proteins for which the precise molecular function is unknown. Many of them are from Archaebacteria. These proteins may also be involved in translation termination but this awaits experimental verification.
Pssm-ID: 460930 [Multi-domain] Cd Length: 122 Bit Score: 174.60 E-value: 3.86e-54
eRF1 domain 3; The release factor eRF1 terminates protein biosynthesis by recognising stop ...
271-370
2.71e-40
eRF1 domain 3; The release factor eRF1 terminates protein biosynthesis by recognising stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase centre. The crystal structure of human eRF1 is known. The overall shape and dimensions of eRF1 resemble a tRNA molecule with domains 1, 2, and 3 of eRF1 corresponding to the anticodon loop, aminoacyl acceptor stem, and T stem of a tRNA molecule, respectively. The position of the essential GGQ motif at an exposed tip of domain 2 suggests that the Gln residue coordinates a water molecule to mediate the hydrolytic activity at the peptidyl transferase centre. A conserved groove on domain 1, 80 A from the GGQ motif, is proposed to form the codon recognition site. This family also includes other proteins for which the precise molecular function is unknown. Many of them are from Archaebacteria. These proteins may also be involved in translation termination but this awaits experimental verification.
Pssm-ID: 397503 [Multi-domain] Cd Length: 100 Bit Score: 138.07 E-value: 2.71e-40
eRF1 domain 2; The release factor eRF1 terminates protein biosynthesis by recognising stop ...
136-268
3.34e-35
eRF1 domain 2; The release factor eRF1 terminates protein biosynthesis by recognising stop codons at the A site of the ribosome and stimulating peptidyl-tRNA bond hydrolysis at the peptidyl transferase centre. The crystal structure of human eRF1 is known. The overall shape and dimensions of eRF1 resemble a tRNA molecule with domains 1, 2, and 3 of eRF1 corresponding to the anticodon loop, aminoacyl acceptor stem, and T stem of a tRNA molecule, respectively. The position of the essential GGQ motif at an exposed tip of domain 2 suggests that the Gln residue coordinates a water molecule to mediate the hydrolytic activity at the peptidyl transferase centre. A conserved groove on domain 1, 80 A from the GGQ motif, is proposed to form the codon recognition site. This family also includes other proteins for which the precise molecular function is unknown. Many of them are from Archaebacteria. These proteins may also be involved in translation termination but this awaits experimental verification.
Pssm-ID: 397502 Cd Length: 133 Bit Score: 125.86 E-value: 3.34e-35
Peptide chain release factor 1 (eRF1) [Translation, ribosomal structure and biogenesis]; Peptide chain release factor 1 (eRF1) is part of the Pathway/BioSystem: Translation factors
Pssm-ID: 441112 [Multi-domain] Cd Length: 384 Bit Score: 51.43 E-value: 4.35e-07
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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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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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,
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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,
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specific hits meet or exceed a domain-specific e-value threshold
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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
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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
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