go_id,ontology,go_term,term_definition,evidence
GO:0000139,CC,"Golgi membrane","The lipid bilayer surrounding any of the compartments of the Golgi apparatus.",IEA
GO:0000209,BP,"protein polyubiquitination","Addition of multiple ubiquitin groups to a protein, forming a ubiquitin chain.",IDA
GO:0008270,MF,"zinc ion binding","Interacting selectively and non-covalently with zinc (Zn) ions.",IEA
GO:0016021,CC,"integral component of membrane","The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.",IEA
GO:0042787,BP,"protein ubiquitination involved in ubiquitin-dependent protein catabolic process","The process in which a ubiquitin group, or multiple groups, are covalently attached to the target protein, thereby initiating the degradation of that protein.",IEA
GO:0043161,BP,"proteasome-mediated ubiquitin-dependent protein catabolic process","The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.",TAS
GO:0061630,MF,"ubiquitin protein ligase activity","Catalysis of the transfer of ubiquitin to a substrate protein via the reaction X-ubiquitin + S --> X + S-ubiquitin, where X is either an E2 or E3 enzyme, the X-ubiquitin linkage is a thioester bond, and the S-ubiquitin linkage is an isopeptide bond between the C-terminal glycine of ubiquitin and the epsilon-amino group of lysine residues in the substrate. Note that this may include the extension of ubiquitin chains.",IBA