Uniprot ID	Q11WK6
Uniprot Name	RIBBA_CYTH3
Taxonomy ID	269798
Sequence	M E Q I K L D S I A D A I E A I R K G E V I I V V D D E D R E N E G D F I C A A E C V T P E I I N F M S K E G R G L I C A P I S E A R C T E L K L D L M V G S N T A T H E T P F T V S V D L L G N G C T T G I S A S D R S K T I R A L V D P D T K P E D L G R P G H I F P L K A K D E G V L R R V G H T E A A V D L A R L A G F K P A G V L I E I M S E D G S M A R L P E L K Q I A T K F N L K L I S I K D L I E Y R L T H E S L V K R E I G V D M P T N L G D F D L I A F R Q I S T G E V H L A L I K G T W E K D E P V M V R V H S S C V T G D I F G S C R C D C G P Q L H K A M E M I Q Q E G K G V I L Y M N Q E G R G I G L L N K L K A Y K L Q E Q G R D T V E A N L E L G F K M D Q R D Y G T G A Q I L R D L N I S K L R L I T N N P V K R A A L A G Y G L E I T E A V P I E I P S N P H N L E Y L K T K R D K M G H T I L K K D
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 333 333 Proton acceptor; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.; ACT_SITE 335 335 Nucleophile; for GTP cyclohydrolase activity. {ECO:0000255|HAMAP-Rule:MF_01283}.
Pfam	PF00926 PF00925
InterPro	IPR017945 IPR000422 IPR032677 IPR000926 IPR036144 IPR016299