##gff-version 3 P49428 UniProtKB Chain 1 204 . . . ID=PRO_0000082567;Note=Ubiquitin-conjugating enzyme E2-24 kDa P49428 UniProtKB Domain 2 196 . . . Note=UBC core;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00388 P49428 UniProtKB Active site 133 133 . . . Note=Glycyl thioester intermediate;Ontology_term=ECO:0000255,ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00388,ECO:0000255|PROSITE-ProRule:PRU10133 P49428 UniProtKB Mutagenesis 133 133 . . . Note=Loss of activity. C->S%2CA;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:8063827;Dbxref=PMID:8063827