ID T0PHI4_9CLOT Unreviewed; 326 AA.
AC T0PHI4;
DT 16-OCT-2013, integrated into UniProtKB/TrEMBL.
DT 16-OCT-2013, sequence version 1.
DT 27-MAR-2024, entry version 47.
DE RecName: Full=GTP cyclohydrolase II domain-containing protein {ECO:0000259|Pfam:PF00925};
DE Flags: Fragment;
GN ORFNames=M918_03090 {ECO:0000313|EMBL:EQB89513.1};
OS Clostridium sp. BL8.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=1354301 {ECO:0000313|EMBL:EQB89513.1, ECO:0000313|Proteomes:UP000015873};
RN [1] {ECO:0000313|EMBL:EQB89513.1, ECO:0000313|Proteomes:UP000015873}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BL8 {ECO:0000313|EMBL:EQB89513.1,
RC ECO:0000313|Proteomes:UP000015873};
RX PubMed=25076986; DOI=10.1186/1757-4749-6-30;
RA Marathe N.P., Shetty S.A., Lanjekar V.B., Rasane M.H., Ranade D.R.,
RA Shouche Y.S.;
RT "Genome sequencing of multidrug resistant novel Clostridium sp. BL8 reveals
RT its potential for pathogenicity.";
RL Gut Pathog. 6:30-30(2014).
CC -!- FUNCTION: Catalyzes the conversion of D-ribulose 5-phosphate to formate
CC and 3,4-dihydroxy-2-butanone 4-phosphate.
CC {ECO:0000256|ARBA:ARBA00002284}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-ribulose 5-phosphate = (2S)-2-hydroxy-3-oxobutyl phosphate +
CC formate + H(+); Xref=Rhea:RHEA:18457, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:15740, ChEBI:CHEBI:58121, ChEBI:CHEBI:58830;
CC EC=4.1.99.12; Evidence={ECO:0000256|ARBA:ARBA00000141};
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};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 2-hydroxy-3-
CC oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1.
CC {ECO:0000256|ARBA:ARBA00004904}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the DHBP synthase
CC family. {ECO:0000256|ARBA:ARBA00005520}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EQB89513.1}.
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DR EMBL; AUPA01000032; EQB89513.1; -; Genomic_DNA.
DR RefSeq; WP_021282116.1; NZ_AUPA01000032.1.
DR AlphaFoldDB; T0PHI4; -.
DR STRING; 1354301.M918_03090; -.
DR PATRIC; fig|1354301.3.peg.1016; -.
DR OrthoDB; 9793111at2; -.
DR UniPathway; UPA00275; UER00399.
DR Proteomes; UP000015873; Unassembled WGS sequence.
DR GO; GO:0008686; F:3,4-dihydroxy-2-butanone-4-phosphate synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003935; F:GTP cyclohydrolase II activity; IEA:UniProtKB-EC.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00641; GTP_cyclohydro2; 1.
DR Gene3D; 3.90.870.10; DHBP synthase; 1.
DR Gene3D; 3.40.50.10990; GTP cyclohydrolase II; 1.
DR HAMAP; MF_00179; RibA; 1.
DR InterPro; IPR017945; DHBP_synth_RibB-like_a/b_dom.
DR InterPro; IPR000422; DHBP_synthase_RibB.
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; PF00926; DHBP_synthase; 1.
DR Pfam; PF00925; GTP_cyclohydro2; 1.
DR PIRSF; PIRSF001259; RibA; 1.
DR SUPFAM; SSF142695; RibA-like; 1.
DR SUPFAM; SSF55821; YrdC/RibB; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Multifunctional enzyme {ECO:0000256|ARBA:ARBA00023268};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Reference proteome {ECO:0000313|Proteomes:UP000015873};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619}.
FT DOMAIN 129..294
FT /note="GTP cyclohydrolase II"
FT /evidence="ECO:0000259|Pfam:PF00925"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:EQB89513.1"
SQ SEQUENCE 326 AA; 36109 MW; 594D7D15FE93D927 CRC64;
SAHHTAFTVS IDAMETTTGI SAFERAATIK KVLDKNTLPK DFKRPGHIFP LEAKEGGVLK
RAGHTEAAVD LARLAGLYPA GVICEIMSED GTMARTPELM EYVKKHDLKI ITIADLIAYR
RQTEVYIKRM AECKLPAKYG EFKMIGYEST LTGEHHVALV KGDVGDVEPV LMRVHSECLT
GDAFGSLRCD CGQQLAAAMM EVEKEGRGII LYMRQEGRGI GLISKIKAYA LQDQGMDTVE
ANLALGFAAD LRDYGIGAQI LVDLGVKKVK LMTNNPKKMA GLTGYGIEIV ERKPIQMNHN
ERNEYYLKTK KEKLGHMLDF NESIEQ
//
