ID   QUEC_LEPBA              Reviewed;         248 AA.
AC   B0S9S9;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=7-cyano-7-deazaguanine synthase {ECO:0000255|HAMAP-Rule:MF_01633};
DE            EC=6.3.4.20 {ECO:0000255|HAMAP-Rule:MF_01633};
DE   AltName: Full=7-cyano-7-carbaguanine synthase {ECO:0000255|HAMAP-Rule:MF_01633};
DE   AltName: Full=PreQ(0) synthase {ECO:0000255|HAMAP-Rule:MF_01633};
DE   AltName: Full=Queuosine biosynthesis protein QueC {ECO:0000255|HAMAP-Rule:MF_01633};
GN   Name=queC {ECO:0000255|HAMAP-Rule:MF_01633}; OrderedLocusNames=LBF_0170;
OS   Leptospira biflexa serovar Patoc (strain Patoc 1 / Ames).
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=355278;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Patoc 1 / Ames;
RX   PubMed=18270594; DOI=10.1371/journal.pone.0001607;
RA   Picardeau M., Bulach D.M., Bouchier C., Zuerner R.L., Zidane N.,
RA   Wilson P.J., Creno S., Kuczek E.S., Bommezzadri S., Davis J.C., McGrath A.,
RA   Johnson M.J., Boursaux-Eude C., Seemann T., Rouy Z., Coppel R.L.,
RA   Rood J.I., Lajus A., Davies J.K., Medigue C., Adler B.;
RT   "Genome sequence of the saprophyte Leptospira biflexa provides insights
RT   into the evolution of Leptospira and the pathogenesis of leptospirosis.";
RL   PLoS ONE 3:E1607-E1607(2008).
CC   -!- FUNCTION: Catalyzes the ATP-dependent conversion of 7-carboxy-7-
CC       deazaguanine (CDG) to 7-cyano-7-deazaguanine (preQ(0)).
CC       {ECO:0000255|HAMAP-Rule:MF_01633}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=7-carboxy-7-deazaguanine + ATP + NH4(+) = 7-cyano-7-
CC         deazaguanine + ADP + H(+) + H2O + phosphate; Xref=Rhea:RHEA:27982,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:45075,
CC         ChEBI:CHEBI:61036, ChEBI:CHEBI:456216; EC=6.3.4.20;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01633};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01633};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01633};
CC   -!- PATHWAY: Purine metabolism; 7-cyano-7-deazaguanine biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01633}.
CC   -!- SIMILARITY: Belongs to the QueC family. {ECO:0000255|HAMAP-
CC       Rule:MF_01633}.
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DR   EMBL; CP000777; ABZ92716.1; -; Genomic_DNA.
DR   RefSeq; WP_012387209.1; NC_010842.1.
DR   AlphaFoldDB; B0S9S9; -.
DR   SMR; B0S9S9; -.
DR   KEGG; lbf:LBF_0170; -.
DR   HOGENOM; CLU_081854_1_1_12; -.
DR   OMA; CESCMRR; -.
DR   BioCyc; LBIF355278:LBF_RS00865-MON; -.
DR   UniPathway; UPA00391; -.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016879; F:ligase activity, forming carbon-nitrogen bonds; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01995; ExsB; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_01633; QueC; 1.
DR   InterPro; IPR018317; QueC.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   PANTHER; PTHR42914; PTHR42914; 1.
DR   Pfam; PF06508; QueC; 1.
DR   PIRSF; PIRSF006293; ExsB; 1.
DR   TIGRFAMs; TIGR00364; TIGR00364; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Metal-binding; Nucleotide-binding;
KW   Queuosine biosynthesis; Zinc.
FT   CHAIN           1..248
FT                   /note="7-cyano-7-deazaguanine synthase"
FT                   /id="PRO_0000336919"
FT   BINDING         22..32
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         216
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         225
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         228
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         231
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
SQ   SEQUENCE   248 AA;  26815 MW;  63BF346B958C57D4 CRC64;
     MVSILDSSFK SKTEKKGAIV LLSGGLDSTT CLYLAAKDFG YPKNKKLPLL ALSFDYSQKH
     KIELTKSKKI AKTLGIKHVI QKLDPGFFLG SSLTESKIKV RKNAKSLFSG DETEIPNTYV
     PGRNILFLSF ALSLAEGHGY DSIYIGVNAL DYSGYPDCRP EFIDSFQKMA NLGTKKGVSG
     TGDSIQIKTP LLHLGKKEII ELGMSVGAPL GLTHSCYDPV SGKPCGKCDS CILRAKGFLE
     VGLKDPAL