Uniprot ID	P17620
Uniprot Name	RIBBA_BACSU
Taxonomy ID	224308
Sequence	M F H P I E E A L D A L K K G E V I I V V D D E D R E N E G D F V A L A E H A T P E V I N F M A T H G R G L I C T P L S E E I A D R L D L H P M V E H N T D S H H T A F T V S I D H R E T K T G I S A Q E R S F T V Q A L L D S K S V P S D F Q R P G H I F P L I A K K G G V L K R A G H T E A A V D L A E A C G S P G A G V I C E I M N E D G T M A R V P E L I E I A K K H Q L K M I T I K D L I Q Y R Y N L T T L V E R E V D I T L P T D F G T F K V Y G Y T N E V D G K E H V A F V M G D V P F G E E P V L V R V H S E C L T G D V F G S H R C D C G P Q L H A A L N Q I A A E G R G V L L Y L R Q E G R G I G L I N K L K A Y K L Q E Q G Y D T V E A N E A L G F L P D L R N Y G I G A Q I L R D L G V R N M K L L T N N P R K I A G L E G Y G L S I S E R V P L Q M E A K E H N K K Y L Q T K M N K L G H L L H F
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 328 328 Proton acceptor; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.; ACT_SITE 330 330 Nucleophile; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.
Pfam	PF00926 PF00925
InterPro	IPR017945 IPR000422 IPR032677 IPR000926 IPR036144 IPR016299