>2a4d_A mol:protein length:160 Ubiquitin-conjugating enzyme E2 variant 1MGSSHHHHHHSSGLVPRGSTGVKVPRNFRLLEELEEGQKGVGDGTVSWGLEDDEDMTLTRWTGMIIGPPRTIYENRIYSLKIECGPKYPEAPPFVRFVTKINMNGVNSSNGVVDPRAISVLAKWQNSYSIKVVLQELRRLMMSKENMKLPQPPEGQCYSN