##gff-version 3 B1XXP1 UniProtKB Chain 1 284 . . . ID=PRO_1000138956;Note=Orotidine 5'-phosphate decarboxylase B1XXP1 UniProtKB Active site 95 95 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01215