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Term Information

Accession
GO:0005736
Name
RNA polymerase I complex
Ontology
cellular_component
Synonyms
DNA-directed RNA polymerase I complex, DNA-directed RNA polymerase I activity
Alternate IDs
None
Definition
RNA polymerase I, one of three nuclear DNA-directed RNA polymerases found in all eukaryotes, is a multisubunit complex; typically it produces rRNAs. Two large subunits comprise the most conserved portion including the catalytic site and share similarity with other eukaryotic and bacterial multisubunit RNA polymerases. The remainder of the complex is composed of smaller subunits (generally ten or more), some of which are also found in RNA polymerase III and others of which are also found in RNA polymerases II and III. Although the core is competent to mediate ribonucleic acid synthesis, it requires additional factors to select the appropriate template. Source: GOC:krc, GOC:mtg_sensu
Comment
None
History
See term history for GO:0005736 at QuickGO
Subset
None
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Graph of GO:0005736

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Parents of RNA polymerase I complex (GO:0005736)
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RNA polymerase I complex [is_a relation] is_a  nuclear DNA-directed RNA polymerase complex (GO:0055029)
RNA polymerase I complex [BFO:0000050 relation] BFO:0000050  nucleolus (GO:0005730)

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