Gene Ontology Help

Protein geranylgeranyltransferase type I 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 transfer of a 20-carbon lipid, the geranyl-geranyl moiety, from geranyl-geranyl pyrophosphate to a cysteine at the fourth position from the C-terminus of several proteins having the C-terminal sequence Cys-aliphatic-aliphatic-X (CaaX box). The Zn2+ is required for peptide, but not for isoprenoid, substrate binding. The hydrophobic geranyl-geranyl moiety aids membrane attachment of the target proteins which include many essential signal transduction proteins, including members of the Ras superfamily.
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.

transferase activity, transferase activity, transferring alkyl or aryl (other than methyl) groups, biological process