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UniProt functional annotation for P47047 | ||
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| UniProt code: P47047. |
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| Organism: | |
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast). |
| Taxonomy: | |
Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces. |
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| Function: | |
ATP-dependent RNA helicase required for the 3'-end formation of 5.8S RNA. Cofactor for the exosome complex that unwinds secondary structure in pre-rRNA. Required for nucleocytoplasmic transport of mRNA. May serve as a chaperone which translocates or normalizes the structure of mRNAs in preparation for export. Component of the TRAMP complex which has a poly(A) RNA polymerase activity and is involved in a post-transcriptional quality control mechanism limiting inappropriate expression of genetic information. Polyadenylation is required for the degradative activity of the exosome on several of its nuclear RNA substrates. {ECO:0000269|PubMed:15828860}. |
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| Catalytic activity: | |
Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.13; |
| Subunit: | |
Component of the TRAMP complex (also called TRF4 complex) composed of at least HUL4, MTR4, PAP2/TRF4 and either AIR1 or AIR2. {ECO:0000269|PubMed:15828860}. |
| Subcellular location: | |
Nucleus. |
| Miscellaneous: | |
Present with 12500 molecules/cell in log phase SD medium. {ECO:0000269|PubMed:14562106}. |
| Similarity: | |
Belongs to the helicase family. SKI2 subfamily. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.