##gff-version 3 O74712 UniProtKB Chain 1 838 . . . ID=PRO_0000135909;Note=Histidine biosynthesis trifunctional protein O74712 UniProtKB Region 1 271 . . . Note=Phosphoribosyl-AMP cyclohydrolase O74712 UniProtKB Region 272 360 . . . Note=Phosphoribosyl-ATP pyrophosphohydrolase O74712 UniProtKB Region 361 838 . . . Note=Histidinol dehydrogenase O74712 UniProtKB Active site 729 729 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O74712 UniProtKB Active site 730 730 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O74712 UniProtKB Binding site 660 660 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O74712 UniProtKB Binding site 663 663 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O74712 UniProtKB Binding site 764 764 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O74712 UniProtKB Binding site 823 823 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250