ID   QUEC_STAA3              Reviewed;         222 AA.
AC   Q2FIS8;
DT   25-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 91.
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};
GN   OrderedLocusNames=SAUSA300_0697;
OS   Staphylococcus aureus (strain USA300).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=367830;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=USA300;
RX   PubMed=16517273; DOI=10.1016/s0140-6736(06)68231-7;
RA   Diep B.A., Gill S.R., Chang R.F., Phan T.H., Chen J.H., Davidson M.G.,
RA   Lin F., Lin J., Carleton H.A., Mongodin E.F., Sensabaugh G.F.,
RA   Perdreau-Remington F.;
RT   "Complete genome sequence of USA300, an epidemic clone of community-
RT   acquired meticillin-resistant Staphylococcus aureus.";
RL   Lancet 367:731-739(2006).
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   -!- SUBUNIT: Homodimer. {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; CP000255; ABD20983.1; -; Genomic_DNA.
DR   RefSeq; WP_000446724.1; NZ_CP027476.1.
DR   AlphaFoldDB; Q2FIS8; -.
DR   SMR; Q2FIS8; -.
DR   PRIDE; Q2FIS8; -.
DR   EnsemblBacteria; ABD20983; ABD20983; SAUSA300_0697.
DR   KEGG; saa:SAUSA300_0697; -.
DR   HOGENOM; CLU_081854_0_0_9; -.
DR   OMA; CESCMRR; -.
DR   UniPathway; UPA00391; -.
DR   Proteomes; UP000001939; Chromosome.
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..222
FT                   /note="7-cyano-7-deazaguanine synthase"
FT                   /id="PRO_0000246936"
FT   BINDING         14..24
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         190
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         199
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         202
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         205
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
SQ   SEQUENCE   222 AA;  24887 MW;  00D0277C77C8DA6D CRC64;
     MESVLNNEKA IVVFSGGQDS TTCLFYAKKH FKEVELVTFN YGQRHDTEIE VAKQIAQDQG
     MKHHVLDMSL LSQLTPNALT QHDMEITNNE DGIPNTFVPA RNLLFLSFAG ALAYQIGAKH
     IITGVCETDF SGYPDCRDSF IKSMNVTLSL AMDKDFVIHT PLMWLNKAET WKLSDELEVL
     DYIRTKTLTC YNGIIGDGCG ECPACHLRQR GLNQYLESKG AL