##gff-version 3 Q1QAX7 UniProtKB Chain 1 523 . . . ID=PRO_0000330547;Note=Siroheme synthase Q1QAX7 UniProtKB Region 1 203 . . . Note=Precorrin-2 dehydrogenase /sirohydrochlorin ferrochelatase;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Region 231 523 . . . Note=Uroporphyrinogen-III C-methyltransferase;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Active site 263 263 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Active site 285 285 . . . Note=Proton donor;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 22 23 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 43 44 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 240 240 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 316 318 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 321 321 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 346 347 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 398 398 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Binding site 427 427 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646 Q1QAX7 UniProtKB Modified residue 128 128 . . . Note=Phosphoserine;Ontology_term=ECO:0000255;evidence=ECO:0000255|HAMAP-Rule:MF_01646