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DNA-directed RNA polymerase II complex Overview

GO Annotations consist of four mandatory components: a gene product, a term from one of the three Gene Ontology (GO) controlled vocabularies (Molecular Function, Biological Process, and Cellular Component), a reference, and an evidence code.


Summary
Catalyzes the transcription of RNA from a DNA template by acting as a nucleotidyl transferase that polymerizes ribonucleotides at the 3' end of an RNA transcript. Synthesizes precursors of mRNAs, and most snRNA and microRNAs. During a transcription cycle, Pol II, general transcription factors and the mediator complex (CPX-3226) assemble as the preinitiation complex (PIC) at the promoter. 11-15 base pairs of DNA surrounding the transcription start site are melted and the single-stranded DNA template strand of the promoter is positioned deeply within the central active site cleft of Pol II to form the open complex. After synthesis of about 30 bases of RNA, Pol II releases its contacts with the core promoter and the rest of the transcription machinery (promoter clearance) and enters the stage of transcription elongation in which it moves on the template as the transcript elongates. Pol II appears to oscillate between inactive and active conformations at each step of nucleotide addition.
GO Slim Terms

The yeast GO Slim terms are higher level terms that best represent the major S. cerevisiae biological processes, functions, and cellular components. The GO Slim terms listed here are the broader parent terms for the specific terms to which this gene product is annotated, and thus represent the more general processes, functions, and components in which it is involved.

DNA binding, RNA binding, nucleotidyltransferase activity, transferase activity, DNA-templated transcription elongation, DNA-templated transcription initiation, biosynthetic process, nucleus, organelle