ID   QUEF_RICCN              Reviewed;         273 AA.
AC   Q92JG5;
DT   22-NOV-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   03-AUG-2022, entry version 110.
DE   RecName: Full=NADPH-dependent 7-cyano-7-deazaguanine reductase {ECO:0000255|HAMAP-Rule:MF_00817};
DE            EC=1.7.1.13 {ECO:0000255|HAMAP-Rule:MF_00817};
DE   AltName: Full=7-cyano-7-carbaguanine reductase {ECO:0000255|HAMAP-Rule:MF_00817};
DE   AltName: Full=NADPH-dependent nitrile oxidoreductase {ECO:0000255|HAMAP-Rule:MF_00817};
DE   AltName: Full=PreQ(0) reductase {ECO:0000255|HAMAP-Rule:MF_00817};
GN   Name=queF {ECO:0000255|HAMAP-Rule:MF_00817}; OrderedLocusNames=RC0102;
OS   Rickettsia conorii (strain ATCC VR-613 / Malish 7).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=272944;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-613 / Malish 7;
RX   PubMed=11557893; DOI=10.1126/science.1061471;
RA   Ogata H., Audic S., Renesto-Audiffren P., Fournier P.-E., Barbe V.,
RA   Samson D., Roux V., Cossart P., Weissenbach J., Claverie J.-M., Raoult D.;
RT   "Mechanisms of evolution in Rickettsia conorii and R. prowazekii.";
RL   Science 293:2093-2098(2001).
CC   -!- FUNCTION: Catalyzes the NADPH-dependent reduction of 7-cyano-7-
CC       deazaguanine (preQ0) to 7-aminomethyl-7-deazaguanine (preQ1).
CC       {ECO:0000255|HAMAP-Rule:MF_00817}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=7-aminomethyl-7-carbaguanine + 2 NADP(+) = 7-cyano-7-
CC         deazaguanine + 3 H(+) + 2 NADPH; Xref=Rhea:RHEA:13409,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:45075, ChEBI:CHEBI:57783,
CC         ChEBI:CHEBI:58349, ChEBI:CHEBI:58703; EC=1.7.1.13;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00817};
CC   -!- PATHWAY: tRNA modification; tRNA-queuosine biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00817}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00817}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00817}.
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family. QueF type 2
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00817}.
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DR   EMBL; AE006914; AAL02640.1; -; Genomic_DNA.
DR   PIR; F97712; F97712.
DR   RefSeq; WP_010976785.1; NC_003103.1.
DR   AlphaFoldDB; Q92JG5; -.
DR   SMR; Q92JG5; -.
DR   EnsemblBacteria; AAL02640; AAL02640; RC0102.
DR   KEGG; rco:RC0102; -.
DR   PATRIC; fig|272944.4.peg.121; -.
DR   HOGENOM; CLU_054738_0_0_5; -.
DR   OMA; QCVERIY; -.
DR   UniPathway; UPA00392; -.
DR   Proteomes; UP000000816; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0046857; F:oxidoreductase activity, acting on other nitrogenous compounds as donors, with NAD or NADP as acceptor; IEA:InterPro.
DR   GO; GO:0033739; F:preQ1 synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.1130.10; -; 2.
DR   HAMAP; MF_00817; QueF_type2; 1.
DR   InterPro; IPR043133; GTP-CH-I_C/QueF.
DR   InterPro; IPR029500; QueF.
DR   InterPro; IPR029139; QueF_N.
DR   InterPro; IPR016428; QueF_type2.
DR   Pfam; PF14489; QueF; 1.
DR   Pfam; PF14819; QueF_N; 1.
DR   PIRSF; PIRSF004750; Nitrile_oxidored_YqcD_prd; 1.
DR   TIGRFAMs; TIGR03138; QueF; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; NADP; Oxidoreductase; Queuosine biosynthesis.
FT   CHAIN           1..273
FT                   /note="NADPH-dependent 7-cyano-7-deazaguanine reductase"
FT                   /id="PRO_0000163052"
FT   ACT_SITE        179
FT                   /note="Thioimide intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT   ACT_SITE        186
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT   BINDING         81..83
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT   BINDING         83..84
FT                   /ligand="NADPH"
FT                   /ligand_id="ChEBI:CHEBI:57783"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT   BINDING         218..219
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT   BINDING         247..248
FT                   /ligand="NADPH"
FT                   /ligand_id="ChEBI:CHEBI:57783"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
SQ   SEQUENCE   273 AA;  31215 MW;  B31146994074D23B CRC64;
     MPLSTSLLGK KSTYKDSYDV TLLFKIPRIN NRNELGINSN NLPFYGVDVW NTYELSCLNK
     NGKPWVGVGT FYIPTDSENI VESKSFKLYL NSFNNFVVES VKELERIILQ DLSNVTHAKV
     TGRIFPINTK VEFGVPSGKN IDDLDIVCNN YGAPDNSLIE YEDVLVEEEI NSHLLKSNCL
     VTGQPDWGTI VIKYKGKKLK YDSFLKYLIS FRNCNEFAEQ CAERIFTDIK NAISPDFLSI
     YIVYARRGGI DICPYRSTDK SYTLPSDKRF IRQ