Gene Ontology Help

UBA3-ULA1 E1 enzyme 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
E1 enzyme complex that activates the Ubiquitin-like protein modifier RUB1 (Q03919) by adenylating its C-terminal glycine residue using ATP, then linking this residue to the side chain of the catalytic cysteine of UBA3 (Cys-168), yielding NEDD8-UBA3. This is conjugated by the E2 UBC12 (P52491) to a single site in the carboxyl termini of cullins, a family of hydrophobic proteins providing a scaffold for E3 ubiquitin ligases, thus modulating the E3 enzymatic activity.
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.

ion binding, ligase activity, protein modification by small protein conjugation or removal