##gff-version 3 Q59Q46 UniProtKB Chain 1 521 . . . ID=PRO_0000415684;Note=Inosine-5'-monophosphate dehydrogenase Q59Q46 UniProtKB Domain 119 178 . . . Note=CBS 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Domain 182 238 . . . Note=CBS 2;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Active site 333 333 . . . Note=Thioimidate intermediate;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Active site 435 435 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 276 278 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 326 328 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 328 328 . . . Note=In other chain;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 330 330 . . . Note=In other chain;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 331 331 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 333 333 . . . Note=In other chain;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 366 368 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 389 390 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 413 417 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 447 447 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 506 506 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 507 507 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Binding site 508 508 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_03156 Q59Q46 UniProtKB Mutagenesis 251 251 . . . Note=In MPA-resistant strain%3B decreases the K(M) values for both substrates. Decreases sensitivity to MPA 4-fold%2C but increases sensitivity to mizoribine monophosphate 40-fold. A->T;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:15665003;Dbxref=PMID:15665003