QUEC_STRT2
ID QUEC_STRT2 Reviewed; 217 AA.
AC Q5M4S5;
DT 25-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-2005, sequence version 1.
DT 03-AUG-2022, entry version 96.
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=stu0825;
OS Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=264199;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-250 / LMG 18311;
RX PubMed=15543133; DOI=10.1038/nbt1034;
RA Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT "Complete sequence and comparative genome analysis of the dairy bacterium
RT Streptococcus thermophilus.";
RL Nat. Biotechnol. 22:1554-1558(2004).
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; CP000023; AAV60501.1; -; Genomic_DNA.
DR RefSeq; WP_002946194.1; NC_006448.1.
DR AlphaFoldDB; Q5M4S5; -.
DR SMR; Q5M4S5; -.
DR STRING; 264199.stu0825; -.
DR EnsemblBacteria; AAV60501; AAV60501; stu0825.
DR GeneID; 66898711; -.
DR KEGG; stl:stu0825; -.
DR PATRIC; fig|264199.4.peg.821; -.
DR eggNOG; COG0603; Bacteria.
DR HOGENOM; CLU_081854_0_0_9; -.
DR OMA; CESCMRR; -.
DR UniPathway; UPA00391; -.
DR Proteomes; UP000001170; 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..217
FT /note="7-cyano-7-deazaguanine synthase"
FT /id="PRO_0000246942"
FT BINDING 10..20
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT BINDING 185
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT BINDING 194
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT BINDING 197
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
FT BINDING 200
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01633"
SQ SEQUENCE 217 AA; 24090 MW; 0D174B454C39E805 CRC64;
MKRQSALVVF SGGQDSTTCL FWALKHYETV ELVTFAYGQR HSLEIEVAKE IAQEQGLKHH
VLDMSLLGQI TENALTSDIE IEAEKGEVPN TFVDGRNHLF LSFAAVLAKQ RGIIDIVTGV
CETDFSGYPD CRDVFVKSLN VTLNLAMAYD FVIQTPLMWL DKAETWALAD QLGAFDYVRE
KTLTCYNGII GTGCGDCPAC HLRQKGLEKY LAEKGDA
