##gff-version 3 Q5QQX7 UniProtKB Chain 1 503 . . . ID=PRO_0000051952;Note=Aromatase Q5QQX7 UniProtKB Transmembrane 19 39 . . . Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q5QQX7 UniProtKB Transmembrane 51 71 . . . Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q5QQX7 UniProtKB Transmembrane 303 323 . . . Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255 Q5QQX7 UniProtKB Binding site 309 309 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q5QQX7 UniProtKB Binding site 374 374 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250 Q5QQX7 UniProtKB Binding site 437 437 . . . Note=Axial binding residue;Ontology_term=ECO:0000250;evidence=ECO:0000250