Gene Ontology Help

Mitochondrial DNA-directed RNA polymerase 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
Mitochondrial RNA polymerase resides in the mitochondrion and is responsible for transcription of all genes on the mitochondrial genome, both protein- and RNA-coding. Binding of the polymerase complex to the promoter consensus sequence 5-prime-(- 8)ATATAAGTA(+ 1) bends and opens promoter DNA. The ability to initiate transcription at mitochondrial promoters is conferred by the regulatory subunit Mtf1p. The transcriptional activity of mitochondrial RNA polymerase is repressed by the high ATP levels generated during growth on glucose, and activated at low ATP levels during growth on non-fermentable carbon sources.
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.

nucleotidyltransferase activity, transferase activity, DNA-templated transcription, biosynthetic process, mitochondrion, organelle, intracellular non-membrane-bounded organelle