Gene Ontology Help

Protein geranylgeranyltransferase type 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 transfer of a 20-hydrocarbon geranyl-geranyl moiety from geranyl-geranyl pyrophosphate to a Rab protein having the C-terminal sequence -XXCC, -XCXC and -CCXX , where both cysteines may become modified. Requires both Zn2+ and Mg2+ for maximal activity. The Rab escort protein, MRS6, is the substrate-binding subunit (component A) of the complex which binds unprenylated Rab proteins and presents the substrate peptide to the catalytic component B. Component A is thought to be regenerated by transferring its prenylated Rab back to the donor membrane.
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