QUEF_ECODH
ID QUEF_ECODH Reviewed; 282 AA.
AC B1XDK3;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 1.
DT 03-AUG-2022, entry version 75.
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};
GN OrderedLocusNames=ECDH10B_2963;
OS Escherichia coli (strain K12 / DH10B).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=316385;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=K12 / DH10B;
RX PubMed=18245285; DOI=10.1128/jb.01695-07;
RA Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA Posfai G., Weinstock G.M., Blattner F.R.;
RT "The complete genome sequence of Escherichia coli DH10B: insights into the
RT biology of a laboratory workhorse.";
RL J. Bacteriol. 190:2597-2606(2008).
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; CP000948; ACB03907.1; -; Genomic_DNA.
DR RefSeq; WP_000100421.1; NC_010473.1.
DR AlphaFoldDB; B1XDK3; -.
DR SMR; B1XDK3; -.
DR KEGG; ecd:ECDH10B_2963; -.
DR HOGENOM; CLU_054738_0_0_6; -.
DR OMA; QCVERIY; -.
DR BioCyc; ECOL316385:ECDH10B_RS15060-MON; -.
DR UniPathway; UPA00392; -.
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..282
FT /note="NADPH-dependent 7-cyano-7-deazaguanine reductase"
FT /id="PRO_1000213063"
FT ACT_SITE 190
FT /note="Thioimide intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT ACT_SITE 197
FT /note="Proton donor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT BINDING 88..90
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT BINDING 90..91
FT /ligand="NADPH"
FT /ligand_id="ChEBI:CHEBI:57783"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT BINDING 229..230
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
FT BINDING 258..259
FT /ligand="NADPH"
FT /ligand_id="ChEBI:CHEBI:57783"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00817"
SQ SEQUENCE 282 AA; 32588 MW; 3C22B9BA7AA3C79D CRC64;
MSSYANHQAL AGLTLGKSTD YRDTYDASLL QGVPRSLNRD PLGLKADNLP FHGTDIWTLY
ELSWLNAKGL PQVAVGHVEL DYTSVNLIES KSFKLYLNSF NQTRFNNWDE VRQTLERDLS
TCAQGKISVA LYRLDELEGQ PIGHFNGTCI DDQDITIDNY EFTTDYLENA TCGEKVVEET
LVSHLLKSNC LITHQPDWGS LQIQYRGRQI DREKLLRYLV SFRHHNEFHE QCVERIFNDL
LRFCQPEKLS VYARYTRRGG LDINPWRSNS DFVPSTTRLV RQ