UBC13-MMS2 complex obsolete UBC13-UEV1A complex https://github.com/geneontology/go-ontology/issues/27697 true OBSOLETE. A heterodimeric ubiquitin conjugating enzyme complex that catalyzes assembly of K63-linked polyubiquitin chains and is involved in NF-kappaB activation. In humans at least, the complex comprises the ubiquitin-conjugating enzyme UBC13 and ubiquitin-conjugating enzyme variant 1A (UEV1A). GO:0035370 2010-03-11T10:53:09Z cellular_component This term was obsoleted because it represents the same concept as UBC13-MMS2 complex ; GO:0031372. bf