##gff-version 3 O81395 UniProtKB Chain 1 521 . . . ID=PRO_0000186358;Note=Bifunctional dihydrofolate reductase-thymidylate synthase O81395 UniProtKB Domain 17 194 . . . Note=DHFR O81395 UniProtKB Region 197 521 . . . Note=Thymidylate synthase O81395 UniProtKB Active site 403 403 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 21 21 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 23 23 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 29 35 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 43 43 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 67 69 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 88 91 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 130 130 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 131 138 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 151 151 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 258 258 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 404 404 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 422 426 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 434 434 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 O81395 UniProtKB Binding site 464 466 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250