ID   QUEF_RICAH              Reviewed;         273 AA.
AC   A8GM19;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   03-AUG-2022, entry version 84.
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=A1C_00555;
OS   Rickettsia akari (strain Hartford).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=293614;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Hartford;
RA   Madan A., Fahey J., Helton E., Ketteman M., Madan A., Rodrigues S.,
RA   Sanchez A., Whiting M., Dasch G., Eremeeva M.;
RT   "Complete genome sequence of Rickettsia akari.";
RL   Submitted (SEP-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000847; ABV74444.1; -; Genomic_DNA.
DR   RefSeq; WP_012013314.1; NC_009881.1.
DR   AlphaFoldDB; A8GM19; -.
DR   SMR; A8GM19; -.
DR   STRING; 293614.A1C_00555; -.
DR   PRIDE; A8GM19; -.
DR   EnsemblBacteria; ABV74444; ABV74444; A1C_00555.
DR   KEGG; rak:A1C_00555; -.
DR   eggNOG; COG0780; Bacteria.
DR   eggNOG; COG2904; Bacteria.
DR   HOGENOM; CLU_054738_0_0_5; -.
DR   OMA; QCVERIY; -.
DR   UniPathway; UPA00392; -.
DR   Proteomes; UP000006830; 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_1000062356"
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;  31112 MW;  F248107A23EFF3D8 CRC64;
     MPLSTSLLGK TSTYKDSYDA TLLFKIPRIN NRNALGINSN NLPFYGVDIW NTYELSCINK
     KGKPWVGVGT FYIPTDSENI VESKSFKLYL NSFNNFVVES VEELERIILQ DLSNVTHAKV
     TGRIFPINTK IAFGVPSGKN IDALDIVCNN YGPPDNSLVE YEEVLVEEEI NSNLLKSNCL
     VTGQPDWGSI VIKYKGKKLK HDSFLKYLIS FRNYHEFAEQ CAERIFTDIK NAIKPDFLSL
     YIVYTRRGGI DICPYRSTDK SYSLPSDKRL IRQ