is ubiquitination molecular_function gene product or complex activity ubiquitin-protein transferase activity true Reactome:R-HSA-3781009 ubiquitin protein-ligase activity Reactome:R-HSA-182986 Reactome:R-HSA-1912386 Reactome:R-HSA-68712 Reactome:R-HSA-5693108 Reactome:R-HSA-174057 Reactome:R-HSA-2186785 ubiquitin-conjugating enzyme activity Reactome:R-HSA-5483238 Reactome:R-HSA-5668454 Reactome:R-HSA-918224 Reactome:R-HSA-9645414 Reactome:R-HSA-182993 KEGG_REACTION:R03876 Reactome:R-HSA-205118 Reactome:R-HSA-5667107 Reactome:R-HSA-2187368 Reactome:R-HSA-5684250 GO:0004842 Reactome:R-HSA-5667111 Reactome:R-HSA-9013974 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. Reactome:R-HSA-201425 Reactome:R-HSA-174195 Reactome:R-HSA-173542 ubiquitin protein ligase activity Reactome:R-HSA-936942 Reactome:R-HSA-174227 Reactome:R-HSA-1980074 Reactome:R-HSA-975118 Reactome:R-HSA-3249386 Reactome:R-HSA-5652009 Reactome:R-HSA-2213017 Reactome:R-HSA-9793444 Reactome:R-HSA-2169050 Reactome:R-HSA-9750946 Reactome:R-HSA-1918095 Reactome:R-HSA-1918092 Reactome:R-HSA-5362412 Reactome:R-HSA-3134946 Reactome:R-HSA-983156 Reactome:R-HSA-1980118 Reactome:R-HSA-9861563 Reactome:R-HSA-69598 Reactome:R-HSA-9628444 Reactome:R-HSA-5668534 Reactome:R-HSA-9834070 Reactome:R-HSA-211734 Reactome:R-HSA-174104 Reactome:R-HSA-983153 Reactome:R-HSA-9796387 Reactome:R-HSA-183051 Reactome:R-HSA-2769007 Reactome:R-HSA-202453 Reactome:R-HSA-4332236 Reactome:R-HSA-9793679 Reactome:R-HSA-8948709 Reactome:R-HSA-2172172 Reactome:R-HSA-5675470 Reactome:R-HSA-2186747 Reactome:R-HSA-3780995 Reactome:R-HSA-9817362 Reactome:R-HSA-3000335 Reactome:R-HSA-983140 Reactome:R-HSA-1852623 Reactome:R-HSA-5610745 Reactome:R-HSA-5357757 Reactome:R-HSA-5610742 Reactome:R-HSA-2730904 Reactome:R-HSA-183084 Reactome:R-HSA-209063 Reactome:R-HSA-1253282 Reactome:R-HSA-9701000 ubiquitin ligase activity Reactome:R-HSA-183089 Reactome:R-HSA-5607756 Reactome:R-HSA-5610746 Reactome:R-HSA-5607757 Reactome:R-HSA-3134804 Reactome:R-HSA-5655170 Reactome:R-HSA-180597 Reactome:R-HSA-446877 Reactome:R-HSA-9758604 Reactome:R-HSA-2179276 Reactome:R-HSA-2900765 Reactome:R-HSA-1169405 Reactome:R-HSA-1169406 Reactome:R-HSA-8956106 Reactome:R-HSA-2682349 Reactome:R-HSA-1169402 Reactome:R-HSA-1977296 Reactome:R-HSA-264444 Reactome:R-HSA-179417 Reactome:R-HSA-451418 Reactome:R-HSA-936412 Reactome:R-HSA-173545 Reactome:R-HSA-75824 ubiquitin conjugating enzyme activity Reactome:R-HSA-9833155 Reactome:R-HSA-3797226 Reactome:R-HSA-5660753 Reactome:R-HSA-870449 Reactome:R-HSA-975147 Reactome:R-HSA-168915 Reactome:R-HSA-9014342 Reactome:R-HSA-5607725 Reactome:R-HSA-5607728 Reactome:R-HSA-5691108 Reactome:R-HSA-174159 Reactome:R-HSA-9013069 Reactome:R-HSA-936986 Reactome:R-HSA-741386 Reactome:R-HSA-1234163 Reactome:R-HSA-9793485 E3 E2 Reactome:R-HSA-1363331 Reactome:R-HSA-1358792 Reactome:R-HSA-9861640 Reactome:R-HSA-1358790 Reactome:R-HSA-1912357 Reactome:R-HSA-174144 Reactome:R-HSA-3788724 Reactome:R-HSA-9645394 Reactome:R-HSA-450358 Reactome:R-HSA-1358789 Reactome:R-HSA-1169397 Reactome:R-HSA-1169398 Reactome:R-HSA-9833973 Reactome:R-HSA-2737728 Reactome:R-HSA-1169395 Reactome:R-HSA-1169394 Reactome:R-HSA-187575 Reactome:R-HSA-9815507 Reactome:R-HSA-202534 Reactome:R-HSA-180540 Reactome:R-HSA-9796626 Reactome:R-HSA-9796346 Reactome:R-HSA-1234172 Reactome:R-HSA-9688831