TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut ...
94-339
5.79e-52
TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut bacterium Enterococcus faecalis, are plasmid-borne homologs that are induced by pheromones. Induction rends the host bacterium insensitive to self-induction by its own pheromones, and prevents the transfer of the pheromone-inducible conjugative plasmids to bacteria that already contain it. Based on homology to Tiki activity, it has been proposed that TraB acts as a protease in the inactivation of mating pheromone, cleaving at the amino-terminus. The pheromones are small peptides (7-8 residues) encoded by the bacterial genome, and are specific for particular plasmids, or class of plasmids, which may contain several virulence factors and disseminate rapidly. Plasmid-borne antibiotic resistance and virulence determinants make these elements important contributors to medical problems. Trab/PrygY is a member of a Tiki-like superfamily. Tiki is a membrane-associated metalloprotease (MEROPS family M96) that inhibits Wnt via the cleavage of its amino terminus. Wnt is essential in animal development and homeostasis. In Xenopus, Tiki is critical in head development. In human cells, Tiki inhibits Wnt-signaling. Tiki proteins are also related to erythromycin esterase, gumN plant pathogens, RtxA containing toxins, and Campylobacter Jejuni ChaN heme-binding protein.
:
Pssm-ID: 350608 Cd Length: 177 Bit Score: 171.60 E-value: 5.79e-52
TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut ...
94-339
5.79e-52
TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut bacterium Enterococcus faecalis, are plasmid-borne homologs that are induced by pheromones. Induction rends the host bacterium insensitive to self-induction by its own pheromones, and prevents the transfer of the pheromone-inducible conjugative plasmids to bacteria that already contain it. Based on homology to Tiki activity, it has been proposed that TraB acts as a protease in the inactivation of mating pheromone, cleaving at the amino-terminus. The pheromones are small peptides (7-8 residues) encoded by the bacterial genome, and are specific for particular plasmids, or class of plasmids, which may contain several virulence factors and disseminate rapidly. Plasmid-borne antibiotic resistance and virulence determinants make these elements important contributors to medical problems. Trab/PrygY is a member of a Tiki-like superfamily. Tiki is a membrane-associated metalloprotease (MEROPS family M96) that inhibits Wnt via the cleavage of its amino terminus. Wnt is essential in animal development and homeostasis. In Xenopus, Tiki is critical in head development. In human cells, Tiki inhibits Wnt-signaling. Tiki proteins are also related to erythromycin esterase, gumN plant pathogens, RtxA containing toxins, and Campylobacter Jejuni ChaN heme-binding protein.
Pssm-ID: 350608 Cd Length: 177 Bit Score: 171.60 E-value: 5.79e-52
pheromone shutdown-related protein TraB; traB is a plasmid encoded gene that functions in the ...
89-339
1.09e-17
pheromone shutdown-related protein TraB; traB is a plasmid encoded gene that functions in the shutdown of the peptide sex pheromone cPD1 which is produced by the plasmid free recipient cell prior to conjugative transfer in Enterococcus faecalis. Once the recipient acquires the plasmid, production of cPD1 is shut down. The gene product may play another role in the other species in the family. [Unknown function, General]
Pssm-ID: 129363 Cd Length: 380 Bit Score: 83.75 E-value: 1.09e-17
TraB/PrgY/gumN family; This entry includes Tiki1/2 from humans, TraB/PrgY from the gut flora ...
90-334
2.65e-15
TraB/PrgY/gumN family; This entry includes Tiki1/2 from humans, TraB/PrgY from the gut flora Enterococcusfaecalis and gumN from the plant pathogen Xanthomonas. Tiki1 is homologous to TraB/PrgY. They have a pair of widely spaced GX2H motifs and a conserved glutamate. From the structural study, this group of proteins have been identified as an ancient metalloprotease clan with a common protein architecture (cobbled from the folds of the EreA/ChaN/PMT group) that mediates proteolytic activities. Tiki1 is a membrane-associated protease that inhibits Wnt via the cleavage of its amino terminus, diminishing Wnt's binding to receptors. TraB/PrgY is an inhibitor peptide that may act as a protease to inactivate the mating pheromone.
Pssm-ID: 426534 Cd Length: 262 Bit Score: 75.09 E-value: 2.65e-15
TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut ...
94-339
5.79e-52
TraB/PryY confer plasmid-borne pheromone resistance; TraB/PrgY proteins, identified in gut bacterium Enterococcus faecalis, are plasmid-borne homologs that are induced by pheromones. Induction rends the host bacterium insensitive to self-induction by its own pheromones, and prevents the transfer of the pheromone-inducible conjugative plasmids to bacteria that already contain it. Based on homology to Tiki activity, it has been proposed that TraB acts as a protease in the inactivation of mating pheromone, cleaving at the amino-terminus. The pheromones are small peptides (7-8 residues) encoded by the bacterial genome, and are specific for particular plasmids, or class of plasmids, which may contain several virulence factors and disseminate rapidly. Plasmid-borne antibiotic resistance and virulence determinants make these elements important contributors to medical problems. Trab/PrygY is a member of a Tiki-like superfamily. Tiki is a membrane-associated metalloprotease (MEROPS family M96) that inhibits Wnt via the cleavage of its amino terminus. Wnt is essential in animal development and homeostasis. In Xenopus, Tiki is critical in head development. In human cells, Tiki inhibits Wnt-signaling. Tiki proteins are also related to erythromycin esterase, gumN plant pathogens, RtxA containing toxins, and Campylobacter Jejuni ChaN heme-binding protein.
Pssm-ID: 350608 Cd Length: 177 Bit Score: 171.60 E-value: 5.79e-52
pheromone shutdown-related protein TraB; traB is a plasmid encoded gene that functions in the ...
89-339
1.09e-17
pheromone shutdown-related protein TraB; traB is a plasmid encoded gene that functions in the shutdown of the peptide sex pheromone cPD1 which is produced by the plasmid free recipient cell prior to conjugative transfer in Enterococcus faecalis. Once the recipient acquires the plasmid, production of cPD1 is shut down. The gene product may play another role in the other species in the family. [Unknown function, General]
Pssm-ID: 129363 Cd Length: 380 Bit Score: 83.75 E-value: 1.09e-17
TraB/PrgY/gumN family; This entry includes Tiki1/2 from humans, TraB/PrgY from the gut flora ...
90-334
2.65e-15
TraB/PrgY/gumN family; This entry includes Tiki1/2 from humans, TraB/PrgY from the gut flora Enterococcusfaecalis and gumN from the plant pathogen Xanthomonas. Tiki1 is homologous to TraB/PrgY. They have a pair of widely spaced GX2H motifs and a conserved glutamate. From the structural study, this group of proteins have been identified as an ancient metalloprotease clan with a common protein architecture (cobbled from the folds of the EreA/ChaN/PMT group) that mediates proteolytic activities. Tiki1 is a membrane-associated protease that inhibits Wnt via the cleavage of its amino terminus, diminishing Wnt's binding to receptors. TraB/PrgY is an inhibitor peptide that may act as a protease to inactivate the mating pheromone.
Pssm-ID: 426534 Cd Length: 262 Bit Score: 75.09 E-value: 2.65e-15
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.
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
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Domains are color coded according to superfamilies
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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,
or click on the triangles, if present, that represent functional sites (conserved features)
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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,
for each region on the query sequence:
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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