ID   QUEF_ACICJ              Reviewed;         154 AA.
AC   A5FY70;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-JUN-2007, sequence version 1.
DT   16-JUN-2009, entry version 18.
DE   RecName: Full=NADPH-dependent 7-cyano-7-deazaguanine reductase;
DE            EC=1.7.1.13;
DE   AltName: Full=7-cyano-7-carbaguanine reductase;
DE   AltName: Full=PreQ(0) reductase;
DE   AltName: Full=NADPH-dependent nitrile oxidoreductase;
GN   Name=queF; OrderedLocusNames=Acry_1341;
OS   Acidiphilium cryptum (strain JF-5).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Acidiphilium.
OX   NCBI_TaxID=349163;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H.,
RA   Pitluck S., Sims D., Brettin T., Bruce D., Han C., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Magnuson T.,
RA   Richardson P.;
RT   "Complete sequence of chromosome of Acidiphilium cryptum JF-5.";
RL   Submitted (MAY-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) (By
CC       similarity).
CC   -!- CATALYTIC ACTIVITY: 7-aminomethyl-7-carbaguanine + 2 NADP(+) = 7-
CC       cyano-7-carbaguanine + 2 NADPH.
CC   -!- PATHWAY: tRNA modification; queuosine-tRNA biosynthesis.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm (Probable).
CC   -!- SIMILARITY: Belongs to the GTP cyclohydrolase I family. QueF type
CC       1 subfamily.
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DR   EMBL; CP000697; ABQ30552.1; -; Genomic_DNA.
DR   RefSeq; YP_001234471.1; -.
DR   GeneID; 5160166; -.
DR   GenomeReviews; CP000697_GR; Acry_1341.
DR   KEGG; acr:Acry_1341; -.
DR   OMA; A5FY70; LYLASFR.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003934; F:GTP cyclohydrolase I activity; IEA:InterPro.
DR   GO; GO:0046857; F:oxidoreductase activity, acting on other ni...; IEA:HAMAP.
DR   GO; GO:0033739; F:queuine synthase activity; IEA:EC.
DR   GO; GO:0055114; P:oxidation reduction; IEA:UniProtKB-KW.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IEA:HAMAP.
DR   GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:InterPro.
DR   HAMAP; MF_00818; -; 1.
DR   InterPro; IPR016856; CN_OxRdtase_NADPH-dep_QueF.
DR   InterPro; IPR001474; GTP_CycHdrlase_I.
DR   Pfam; PF01227; GTP_cyclohydroI; 1.
DR   PIRSF; PIRSF027377; Nitrile_oxidored_QueF; 1.
DR   TIGRFAMs; TIGR03139; QueF-II; 1.
PE   3: Inferred from homology;
KW   Complete proteome; Cytoplasm; NADP; Oxidoreductase;
KW   Queuosine biosynthesis.
FT   CHAIN         1    154       NADPH-dependent 7-cyano-7-deazaguanine
FT                                reductase.
FT                                /FTId=PRO_1000062373.
SQ   SEQUENCE   154 AA;  17313 MW;  F7A34AF5CB132297 CRC64;
     MTDTRYDALQ QLGRESRMPD SPEAAVLERV AAPSRGKNYV VRFTCPEFTS LCPITGQPDF
     AHVVIDYIPD SWIVESKSLK LYLGSFRNHG AFHEACTLMI AERLVDLLAP RWLRIGAYWY
     PRGGIPIDVF WQTGAPPEGA YLPDQGVPPY RGRG
//