##gff-version 3 Q4L7J1 UniProtKB Chain 1 154 . . . ID=PRO_0000300668;Note=Low molecular weight protein-tyrosine-phosphatase PtpA Q4L7J1 UniProtKB Active site 8 8 . . . Note=Nucleophile;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P11064 Q4L7J1 UniProtKB Active site 14 14 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P11064 Q4L7J1 UniProtKB Active site 120 120 . . . Note=Proton donor;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P11064