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QUEC_ALKHC
ID   QUEC_ALKHC              Reviewed;         223 AA.
AC   Q9KAP3;
DT   25-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 107.
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=BH2244;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
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; BA000004; BAB05963.1; -; Genomic_DNA.
DR   PIR; D83930; D83930.
DR   RefSeq; WP_010898400.1; NC_002570.2.
DR   AlphaFoldDB; Q9KAP3; -.
DR   SMR; Q9KAP3; -.
DR   STRING; 272558.10174863; -.
DR   EnsemblBacteria; BAB05963; BAB05963; BAB05963.
DR   KEGG; bha:BH2244; -.
DR   eggNOG; COG0603; Bacteria.
DR   HOGENOM; CLU_081854_0_0_9; -.
DR   OMA; CESCMRR; -.
DR   OrthoDB; 1681374at2; -.
DR   UniPathway; UPA00391; -.
DR   Proteomes; UP000001258; 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; Reference proteome; Zinc.
FT   CHAIN           1..223
FT                   /note="7-cyano-7-deazaguanine synthase"
FT                   /id="PRO_0000246799"
FT   BINDING         12..22
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         189
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         198
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         201
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT   BINDING         204
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
SQ   SEQUENCE   223 AA;  24962 MW;  AEC78D0BF6008154 CRC64;
     MENKKKKAVV VFSGGQDSTT CLFWALKTFD EVATVTFDYG QRHAEEIECA KEIAEQLGVS
     FRVLDMTLLN QLTESALTRE EIAVKDGENG ELPSTFVPGR NQLFLSFAAV YAKQIGARHL
     VTGVCETDYS GYPDCRDVFI KSLNVTLNLA MDDQFVIHTP LMWLDKAETW KLADELGALD
     FVREKTLTCY HGIRGDGCGE CPACMLRRRG LELYLAEKEG DRA
 
 
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