. "\"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]" . . "protein ubiquitination involved in ubiquitin-dependent protein catabolic process" . "protein ubiquitination during ubiquitin-dependent protein breakdown" . "protein ubiquitination during ubiquitin-dependent protein catabolism" . "protein ubiquitination during ubiquitin-dependent protein degradation" . "protein ubiquitinylation during ubiquitin-dependent protein catabolic process" . "protein ubiquitinylation during ubiquitin-dependent protein catabolism" . "protein ubiquitylation during ubiquitin-dependent protein catabolic process" . "protein ubiquitylation during ubiquitin-dependent protein catabolism" . "Reactome:REACT_100004 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Canis familiaris\"" . "Reactome:REACT_100823 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Mus musculus\"" . "Reactome:REACT_101110 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Mus musculus\"" . "Reactome:REACT_103809 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Xenopus tropicalis\"" . "Reactome:REACT_104518 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Taeniopygia guttata\"" . "Reactome:REACT_105370 \"Multiubiquitination of APC/C-associated Cdh1, Danio rerio\"" . "Reactome:REACT_105620 \"Multiubiquitination of APC/C-associated Cdh1, Taeniopygia guttata\"" . "Reactome:REACT_106156 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Rattus norvegicus\"" . "Reactome:REACT_106906 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Xenopus tropicalis\"" . "Reactome:REACT_107379 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Xenopus tropicalis\"" . "Reactome:REACT_107829 \"Multiubiquitination of APC/C-associated Cdh1, Rattus norvegicus\"" . "Reactome:REACT_108446 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Danio rerio\"" . "Reactome:REACT_108589 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Mus musculus\"" . "Reactome:REACT_109071 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Drosophila melanogaster\"" . "Reactome:REACT_110158 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Gallus gallus\"" . "Reactome:REACT_114376 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Oryza sativa\"" . "Reactome:REACT_28669 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Drosophila melanogaster\"" . "Reactome:REACT_30747 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Bos taurus\"" . "Reactome:REACT_31985 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Danio rerio\"" . "Reactome:REACT_32728 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Gallus gallus\"" . "Reactome:REACT_32748 \"Multiubiquitination of APC/C-associated Cdh1, Mus musculus\"" . "Reactome:REACT_33468 \"Multiubiquitination of APC/C-associated Cdh1, Bos taurus\"" . "Reactome:REACT_6723 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Homo sapiens\"" . "Reactome:REACT_6735 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Homo sapiens\"" . "Reactome:REACT_6791 \"Multiubiquitination of APC/C-associated Cdh1, Homo sapiens\"" . "Reactome:REACT_6824 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Homo sapiens\"" . "Reactome:REACT_6914 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Homo sapiens\"" . "Reactome:REACT_77058 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Bos taurus\"" . "Reactome:REACT_78216 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Rattus norvegicus\"" . "Reactome:REACT_78475 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Taeniopygia guttata\"" . "Reactome:REACT_79393 \"Multiubiquitination of APC/C-associated Cdh1, Drosophila melanogaster\"" . "Reactome:REACT_79773 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Xenopus tropicalis\"" . "Reactome:REACT_79781 \"Multiubiquitination of APC/C-associated Cdh1, Oryza sativa\"" . "Reactome:REACT_80157 \"Multiubiquitination of APC/C-associated Cdh1, Xenopus tropicalis\"" . "Reactome:REACT_80243 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Taeniopygia guttata\"" . "Reactome:REACT_81796 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Canis familiaris\"" . "Reactome:REACT_81809 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Gallus gallus\"" . "Reactome:REACT_85194 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Drosophila melanogaster\"" . "Reactome:REACT_86043 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Danio rerio\"" . "Reactome:REACT_87217 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Gallus gallus\"" . "Reactome:REACT_87349 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Taeniopygia guttata\"" . "Reactome:REACT_89066 \"Ubiquitination of Securin by phospho-APC/C:Cdc20 complex, Mus musculus\"" . "Reactome:REACT_91216 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Oryza sativa\"" . "Reactome:REACT_91336 \"Multiubiquitination of APC/C-associated Cdh1, Gallus gallus\"" . "Reactome:REACT_91686 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Bos taurus\"" . "Reactome:REACT_91885 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Rattus norvegicus\"" . "Reactome:REACT_92341 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Dictyostelium discoideum\"" . "Reactome:REACT_92878 \"Multiubiquitination of APC/C-associated Cdh1, Canis familiaris\"" . "Reactome:REACT_94687 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Bos taurus\"" . "Reactome:REACT_94864 \"Ubiquitination of cell cycle proteins targeted by the APC/C:Cdh1complex, Canis familiaris\"" . "Reactome:REACT_95501 \"Ubiquitination of Cyclin A by APC/C:Cdc20 complex, Canis familiaris\"" . "Reactome:REACT_97971 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Drosophila melanogaster\"" . "Reactome:REACT_98894 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Rattus norvegicus\"" . "Reactome:REACT_99825 \"Ubiquitination of Cyclin B by phospho-APC/C:Cdc20 complex, Danio rerio\"" . . "protein degradation tagging activity" . "protein ubiquitination during ubiquitin-dependent protein catabolic process" . "myofibrillar protein ubiquitination during ubiquitin-dependent protein breakdown" . "myofibrillar protein ubiquitination during ubiquitin-dependent protein catabolic process" . "myofibrillar protein ubiquitination during ubiquitin-dependent protein catabolism" . "myofibrillar protein ubiquitination during ubiquitin-dependent protein degradation" .