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Entry: A0A1G0R9B5_9BACT
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ID   A0A1G0R9B5_9BACT        Unreviewed;       144 AA.
AC   A0A1G0R9B5;
DT   15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT   15-FEB-2017, sequence version 1.
DT   24-JAN-2024, entry version 21.
DE   RecName: Full=6-carboxy-5,6,7,8-tetrahydropterin synthase {ECO:0000256|ARBA:ARBA00018141, ECO:0000256|PIRNR:PIRNR006113};
DE            EC=4.-.-.- {ECO:0000256|PIRNR:PIRNR006113};
GN   ORFNames=A2X64_10610 {ECO:0000313|EMBL:OGU56709.1};
OS   Ignavibacteria bacterium GWF2_33_9.
OC   Bacteria; Ignavibacteriota; Ignavibacteria.
OX   NCBI_TaxID=1798430 {ECO:0000313|EMBL:OGU56709.1, ECO:0000313|Proteomes:UP000179061};
RN   [1] {ECO:0000313|EMBL:OGU56709.1, ECO:0000313|Proteomes:UP000179061}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=27774985; DOI=10.1038/ncomms13219;
RA   Anantharaman K., Brown C.T., Hug L.A., Sharon I., Castelle C.J.,
RA   Probst A.J., Thomas B.C., Singh A., Wilkins M.J., Karaoz U., Brodie E.L.,
RA   Williams K.H., Hubbard S.S., Banfield J.F.;
RT   "Thousands of microbial genomes shed light on interconnected biogeochemical
RT   processes in an aquifer system.";
RL   Nat. Commun. 7:13219-13219(2016).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=7,8-dihydroneopterin 3'-triphosphate + H2O = 6-
CC         carboxy-5,6,7,8-tetrahydropterin + acetaldehyde + 2 H(+) +
CC         triphosphate; Xref=Rhea:RHEA:27966, ChEBI:CHEBI:15343,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:18036,
CC         ChEBI:CHEBI:58462, ChEBI:CHEBI:61032; EC=4.1.2.50;
CC         Evidence={ECO:0000256|ARBA:ARBA00001293,
CC         ECO:0000256|PIRNR:PIRNR006113};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000256|PIRNR:PIRNR006113,
CC         ECO:0000256|PIRSR:PIRSR006113-2};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000256|PIRNR:PIRNR006113,
CC       ECO:0000256|PIRSR:PIRSR006113-2};
CC   -!- PATHWAY: Purine metabolism; 7-cyano-7-deazaguanine biosynthesis.
CC       {ECO:0000256|ARBA:ARBA00005061, ECO:0000256|PIRNR:PIRNR006113}.
CC   -!- SIMILARITY: Belongs to the PTPS family. QueD subfamily.
CC       {ECO:0000256|ARBA:ARBA00008900, ECO:0000256|PIRNR:PIRNR006113}.
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:OGU56709.1}.
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DR   EMBL; MHAC01000073; OGU56709.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1G0R9B5; -.
DR   STRING; 1798430.A2X64_10610; -.
DR   UniPathway; UPA00391; -.
DR   Proteomes; UP000179061; Unassembled WGS sequence.
DR   GO; GO:0070497; F:6-carboxy-5,6,7,8-tetrahydropterin synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0003874; F:6-pyruvoyltetrahydropterin synthase activity; IEA:InterPro.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-KW.
DR   GO; GO:0006729; P:tetrahydrobiopterin biosynthetic process; IEA:InterPro.
DR   Gene3D; 3.30.479.10; 6-pyruvoyl tetrahydropterin synthase/QueD; 1.
DR   InterPro; IPR007115; 6-PTP_synth/QueD.
DR   InterPro; IPR038418; 6-PTP_synth/QueD_sf.
DR   InterPro; IPR022470; PTPS_Cys_AS.
DR   PANTHER; PTHR12589:SF7; 6-PYRUVOYL TETRAHYDROBIOPTERIN SYNTHASE; 1.
DR   PANTHER; PTHR12589; PYRUVOYL TETRAHYDROBIOPTERIN SYNTHASE; 1.
DR   Pfam; PF01242; PTPS; 1.
DR   PIRSF; PIRSF006113; PTP_synth; 1.
DR   SUPFAM; SSF55620; Tetrahydrobiopterin biosynthesis enzymes-like; 1.
DR   PROSITE; PS00987; PTPS_1; 1.
PE   3: Inferred from homology;
KW   Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|PIRNR:PIRNR006113};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW   ECO:0000256|PIRNR:PIRNR006113};
KW   Queuosine biosynthesis {ECO:0000256|PIRNR:PIRNR006113};
KW   Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|PIRNR:PIRNR006113}.
FT   ACT_SITE        33
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-1"
FT   ACT_SITE        80
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-1"
FT   ACT_SITE        124
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-1"
FT   BINDING         14
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-2"
FT   BINDING         39
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-2"
FT   BINDING         41
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006113-2"
SQ   SEQUENCE   144 AA;  16952 MW;  69B9D6F0E7E389BB CRC64;
     MVYITRKAQF SAAHRLNNPI LDDKENYEIY DKCNNYWGHG HNYTIEVTIC GTPNPDTGYL
     IDLKQLKKII NENIISKVDH KHLNFDVDFL KGKITTLENM SAIFWQQIQD KLPSGKLFKI
     KMWETENNSV EYFGEEFLIK SFEN
//
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