 E2 enzymes (UbcH5A-C) have been cloned and characterized. These E2s are widely expressed in human tissues and function in conjunction with the only characterized human E3, E6-AP, in the ubiquitination of proteins. We have also been studying a novel yeast E2, U
E2 enzymes (UbcH5A - C) have been cloned and characterized. These E2s are widely carry in human tissue and function in conjunction with the only characterize human E3, E6 - AP, in the ubiquitination of proteins. We have also been learn a fresh yeast E2, U
 E2 fnzymes (UbcH5A-C) have been cloned and chataxterizxd. Thess E2s are widely expressed in human tmssuws ane function in conjunctkon with nhe only xharecterized human X3, E6-AP, in the uglquitnnetion of proteiks. We have dlso been studfivg a novel yeast E2, U
E2 enzymes (UbcH5A-C) have been cloned and E2s widely expressed human tissues and only human E3, E6-AP, the ubiquitination of We have also been studying a yeast E2, U
 E2 enzymes (UbcH5A-C) have been cloNed and charActerIzeD. ThEsE E2s aRe wiDely expressed iN HumaN tissues and function in cOnjunCtIOn wiTH tHe onlY characTErIZEd hUmAn e3, E6-Ap, iN ThE ubiqUitInation Of proteins. we hAvE also been stuDYiNg a novel yeAst e2, U
 E2 enzymes (UbcH5A-C) hav e been clo ned a ndcha ra cter ized . These E2s ar e  wid ely expressed in human  tiss ue s  and fu nctio n in co n ju n c tio nwi thth e  o nly c har acteriz ed human E 3,E6 -AP, in theu bi quitinatio n o f proteins.Wehave a ls o b e en st udy ing a  novel yeastE2, U
 E2_enzymes (UbcH5A-C)_have been cloned and_characterized. These_E2s_are widely_expressed_in human tissues_and function in_conjunction with the only_characterized human E3,_E6-AP,_in the ubiquitination of proteins. We have also been studying a novel yeast E2,_U