EOG8NKF8F GO:0004842 31/105 ubiquitin-protein transferase activity molecular_function "Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages." [GOC:BioGRID, GOC:jh2, PMID:9635407] EOG8NKF8F GO:0005737 1/105 cytoplasm cellular_component "All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures." [ISBN:0198547684] EOG8NKF8F GO:0016874 1/105 ligase activity molecular_function "Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate." [EC:6, GOC:mah] EOG8NKF8F GO:0005634 1/105 nucleus cellular_component "A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent." [GOC:go_curators] EOG8NKF8F GO:0042787 1/105 protein ubiquitination involved in ubiquitin-dependent protein catabolic process biological_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." [GOC:go_curators]