##gff-version 3 P18483 UniProtKB Chain 1 768 . . . ID=PRO_0000056854;Note=Multifunctional tryptophan biosynthesis protein P18483 UniProtKB Domain 25 223 . . . Note=Glutamine amidotransferase type-1 P18483 UniProtKB Region 253 517 . . . Note=Indole-3-glycerol phosphate synthase P18483 UniProtKB Region 533 768 . . . Note=N-(5'-phosphoribosyl)anthranilate isomerase P18483 UniProtKB Active site 102 102 . . . Note=Nucleophile%3B for GATase activity;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P00900 P18483 UniProtKB Active site 197 197 . . . Note=For GATase activity;Ontology_term=ECO:0000250;evidence=ECO:0000250 P18483 UniProtKB Active site 199 199 . . . Note=For GATase activity;Ontology_term=ECO:0000250;evidence=ECO:0000250 P18483 UniProtKB Binding site 74 76 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P00900 P18483 UniProtKB Binding site 106 106 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P00900 P18483 UniProtKB Binding site 152 153 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P00900