ID H8MPR8_CORCM Unreviewed; 224 AA.
AC H8MPR8;
DT 16-MAY-2012, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2012, sequence version 1.
DT 27-MAR-2024, entry version 64.
DE RecName: Full=GTP cyclohydrolase-2 {ECO:0000256|HAMAP-Rule:MF_00179};
DE EC=3.5.4.25 {ECO:0000256|HAMAP-Rule:MF_00179};
DE AltName: Full=GTP cyclohydrolase II {ECO:0000256|HAMAP-Rule:MF_00179};
GN Name=ribA {ECO:0000256|HAMAP-Rule:MF_00179,
GN ECO:0000313|EMBL:AFE10137.1};
GN OrderedLocusNames=COCOR_03731 {ECO:0000313|EMBL:AFE10137.1};
OS Corallococcus coralloides (strain ATCC 25202 / DSM 2259 / NBRC 100086 / M2)
OS (Myxococcus coralloides).
OC Bacteria; Myxococcota; Myxococcia; Myxococcales; Cystobacterineae;
OC Myxococcaceae; Corallococcus.
OX NCBI_TaxID=1144275 {ECO:0000313|EMBL:AFE10137.1, ECO:0000313|Proteomes:UP000007587};
RN [1] {ECO:0000313|EMBL:AFE10137.1, ECO:0000313|Proteomes:UP000007587}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25202 / DSM 2259 / NBRC 100086 / M2
RC {ECO:0000313|Proteomes:UP000007587};
RX PubMed=22582372; DOI=10.1128/JB.00397-12;
RA Huntley S., Zhang Y., Treuner-Lange A., Kneip S., Sensen C.W.,
RA Sogaard-Andersen L.;
RT "Complete Genome Sequence of the Fruiting Myxobacterium Corallococcus
RT coralloides DSM 2259.";
RL J. Bacteriol. 194:3012-3013(2012).
RN [2] {ECO:0000313|Proteomes:UP000007587}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25202 / DSM 2259 / NBRC 100086 / M2
RC {ECO:0000313|Proteomes:UP000007587};
RA Huntley S., Zhang Y., Treuner-Lange A., Sensen C.W., Sogaard-Andersen L.;
RT "Genome sequence of the fruiting myxobacterium Corallococcus coralloides
RT DSM 2259.";
RL Submitted (MAR-2012) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the conversion of GTP to 2,5-diamino-6-
CC ribosylamino-4(3H)-pyrimidinone 5'-phosphate (DARP), formate and
CC pyrophosphate. {ECO:0000256|HAMAP-Rule:MF_00179}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=GTP + 4 H2O = 2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)-
CC pyrimidine + formate + 3 H(+) + 2 phosphate; Xref=Rhea:RHEA:23704,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15740,
CC ChEBI:CHEBI:37565, ChEBI:CHEBI:43474, ChEBI:CHEBI:58614; EC=3.5.4.25;
CC Evidence={ECO:0000256|ARBA:ARBA00029293, ECO:0000256|HAMAP-
CC Rule:MF_00179};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00179};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00179};
CC -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 5-amino-6-(D-
CC ribitylamino)uracil from GTP: step 1/4. {ECO:0000256|HAMAP-
CC Rule:MF_00179}.
CC -!- SIMILARITY: Belongs to the GTP cyclohydrolase II family.
CC {ECO:0000256|HAMAP-Rule:MF_00179}.
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DR EMBL; CP003389; AFE10137.1; -; Genomic_DNA.
DR RefSeq; WP_014396543.1; NC_017030.1.
DR AlphaFoldDB; H8MPR8; -.
DR STRING; 1144275.COCOR_03731; -.
DR KEGG; ccx:COCOR_03731; -.
DR eggNOG; COG0807; Bacteria.
DR HOGENOM; CLU_020273_2_1_7; -.
DR InParanoid; H8MPR8; -.
DR OrthoDB; 9793111at2; -.
DR UniPathway; UPA00275; UER00400.
DR Proteomes; UP000007587; Chromosome.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd00641; GTP_cyclohydro2; 1.
DR Gene3D; 3.40.50.10990; GTP cyclohydrolase II; 1.
DR HAMAP; MF_00179; RibA; 1.
DR InterPro; IPR032677; GTP_cyclohydro_II.
DR InterPro; IPR000926; RibA.
DR InterPro; IPR036144; RibA-like_sf.
DR NCBIfam; TIGR00505; ribA; 1.
DR PANTHER; PTHR21327; GTP CYCLOHYDROLASE II-RELATED; 1.
DR PANTHER; PTHR21327:SF48; RIBOFLAVIN BIOSYNTHESIS PROTEIN RIBBA; 1.
DR Pfam; PF00925; GTP_cyclohydro2; 1.
DR SUPFAM; SSF142695; RibA-like; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|HAMAP-
KW Rule:MF_00179};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00179};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00179};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00179}; Reference proteome {ECO:0000313|Proteomes:UP000007587};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619, ECO:0000256|HAMAP-
KW Rule:MF_00179}; Zinc {ECO:0000256|HAMAP-Rule:MF_00179}.
FT DOMAIN 21..186
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT REGION 1..24
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 142
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT ACT_SITE 144
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 65..69
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 70
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 81
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 83
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 86
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 108..110
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 130
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 165
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
FT BINDING 170
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00179"
SQ SEQUENCE 224 AA; 25037 MW; 14686BDFF3BC4D88 CRC64;
MSDTRSPQVL PTRKPTQHLE RYSEADVPTA RGVLKTIVFR DKRNGREHVA LVVGDPKGME
GVPVRIHSEC LTSEVFGSLK CDCREQLDRA LDFVSQNGLG VVLYLRQEGR GIGLGNKIKA
YALQSKGLDT YEANRQLGFA DDLRSYDIAA EMLRSLDVRS VDLITNNPLK IAGLVEEGVA
VRRRIPSRTE HNPHNVDYLK TKRERTGHLI ELFAEDDDTE AKAG
//
