##gff-version 3 A4X621 UniProtKB Chain 1 278 . . . ID=PRO_1000085578;Note=Orotidine 5'-phosphate decarboxylase A4X621 UniProtKB Active site 96 96 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01215