Uniprot ID	Q9Z734
Uniprot Name	RIBBA_CHLPN
Taxonomy ID	83558
Sequence	M I E T R E E V G S A N F V S L E R A I E D L R A G K F V I V V D E A S R E D E G D L I I A G E K I T V E K M T F L L Q H T T G V V C A A L S Q E R L L S L D L P P M V K D N R C R F K T P F T V S V D A A H G V T T G V S A A D R T K V V Q L L A D P K S K P E D F I S P G H F F P L A S S P G G V L K R A G H T E S T V D L M E L A G L Q P C G V L A E L V N E D Y S M M R L P Q I L E F A R K H N I A V I P V T S I I A H R M L S D R L V S K I S S A R L P T I Y G D F T I H V Y E S L L E G M Q H L A L V K G N V A G K S N V L V R V H S E C V T G D I L G S K R C D C G E Q L S S A M S Y I A E K G T G V L V Y L R G Q E G R G I G L G H K V R A Y A L Q D N G Y D T V D A N L A M G F P V D S R E Y G I G A Q I L V D L K L T T I K L I T H N P Q K Y F G L Q G F G L S I T E R V P L P V R I S E D N E Q Y L R T K Q E R M G H W L D L P C C N N R V Q
Cofactor	COFACTOR: Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-Rule:MF_01283}; Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000255|HAMAP-Rule:MF_01283}; Note=Binds 2 divalent metal cations per subunit. Magnesium or manganese. {ECO:0000255|HAMAP-Rule:MF_01283}; COFACTOR: Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP-Rule:MF_01283}; Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01283};
Active site	ACT_SITE 340 340 Proton acceptor; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.; ACT_SITE 342 342 Nucleophile; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.
Pfam	PF00926 PF00925
InterPro	IPR017945 IPR000422 IPR032677 IPR000926 IPR036144 IPR016299