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Gene Ontology Help

SAGA 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
A transcriptional co-activator complex with histone acetyltransferase activity. Recruited to gene loci by the interaction of TRA1 with specific transcriptional activators, and the bromodomain of GCN5 binds acetylated H3 and H4 N-terminal tails which potentiates cooperative nucleosome acetylation of histone H3 catalysed by the acetylation module. This opens up the chromatin landscape for binding of additional transcription factors and the pre-initiation complex. The DUB module facilitates elongation through deubiquitination of H2B which allows for the recruitment of the CTK1 kinase (Q03957) and subsequent Ser-2 phosophorylation of the Pol II C-terminal domain.
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, acyltransferase activity, chromatin binding, histone binding, hydrolase activity, peptidase activity, transferase activity, histone modification, peptidyl-amino acid modification, protein acylation, protein modification by small protein conjugation or removal

Biological Process

Manually curated GO annotations reflect our best understanding of the basic biological process for this protein complex. Manually curated annotations are assigned by curators based on published papers when available, or by curatorial statements if necessary. Curators periodically review all manually curated GO annotations for accuracy and completeness.

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Qualifier Gene Ontology Term Annotation Extension Evidence Source Assigned On Reference

Molecular Function

Manually curated GO annotations reflect our best understanding of the basic molecular function for this protein complex. Manually curated annotations are assigned by curators based on published papers when available, or by curatorial statements if necessary. Curators periodically review all manually curated GO annotations for accuracy and completeness.

Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.

Qualifier Gene Ontology Term Annotation Extension Evidence Source Assigned On Reference

Shared Annotations

This diagram displays Gene Ontology terms (green) that are shared between the given macromolecular complex (black) and other yeast complexes (yellow). Note: No diagram is shown ("No shared annotations") if there are less than 2 shared GO annotations between this complex and any other complexes.