From SubtiWiki
Jump to: navigation, search
  • Description: nitrile reductase (NADPH-dependent 7-cyano-7-deazaguanine reductase), synthesis of the modified ribonucleotide queuosine

Gene name queF
Synonyms ykvM
Essential no
Product nitrile reductase
Function tRNA modification
Gene expression levels in SubtiExpress: queF
MW, pI 19 kDa, 4.927
Gene length, protein length 495 bp, 165 aa
Immediate neighbours queE, ykvN
Sequences Protein DNA DNA_with_flanks
Genetic context
YkvM context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
QueF expression.png

Categories containing this gene/protein


This gene is a member of the following regulons

preQ1 riboswitch

The gene

Basic information

  • Locus tag: BSU13750

Phenotypes of a mutant

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: 7-aminomethyl-7-carbaguanine + 2 NADP+ = 7-cyano-7-carbaguanine + 2 NADPH (according to Swiss-Prot)
  • Protein family: QueF type 1 subfamily (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification: active site Cys56 is S-bacillithiolated by NaOCl stress PubMed
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure: 4F8B (covalent thioimide intermediate of the unimodular nitrile reductase QueF) PubMed
  • KEGG entry: [2]

Additional information

Expression and regulation

  • Sigma factor:
  • Additional information:
    • number of protein molecules per cell (minimal medium with glucose and ammonium): 303 PubMed
    • number of protein molecules per cell (complex medium with amino acids, without glucose): 913 PubMed

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks


Bui Khanh Chi, Alexandra A Roberts, Tran Thi Thanh Huyen, Katrin Bäsell, Dörte Becher, Dirk Albrecht, Chris J Hamilton, Haike Antelmann
S-bacillithiolation protects conserved and essential proteins against hypochlorite stress in firmicutes bacteria.
Antioxid. Redox Signal.: 2013, 18(11);1273-95
[PubMed:22938038] [WorldCat.org] [DOI] (I p)

Vimbai M Chikwana, Boguslaw Stec, Bobby W K Lee, Valérie de Crécy-Lagard, Dirk Iwata-Reuyl, Manal A Swairjo
Structural basis of biological nitrile reduction.
J. Biol. Chem.: 2012, 287(36);30560-70
[PubMed:22787148] [WorldCat.org] [DOI] (I p)

Mijeong Kang, Robert Peterson, Juli Feigon
Structural Insights into riboswitch control of the biosynthesis of queuosine, a modified nucleotide found in the anticodon of tRNA.
Mol. Cell: 2009, 33(6);784-90
[PubMed:19285444] [WorldCat.org] [DOI] (I p)

Bobby W K Lee, Steven G Van Lanen, Dirk Iwata-Reuyl
Mechanistic studies of Bacillus subtilis QueF, the nitrile oxidoreductase involved in queuosine biosynthesis.
Biochemistry: 2007, 46(44);12844-54
[PubMed:17929836] [WorldCat.org] [DOI] (P p)

Adam Roth, Wade C Winkler, Elizabeth E Regulski, Bobby W K Lee, Jinsoo Lim, Inbal Jona, Jeffrey E Barrick, Ankita Ritwik, Jane N Kim, Rüdiger Welz, Dirk Iwata-Reuyl, Ronald R Breaker
A riboswitch selective for the queuosine precursor preQ1 contains an unusually small aptamer domain.
Nat. Struct. Mol. Biol.: 2007, 14(4);308-17
[PubMed:17384645] [WorldCat.org] [DOI] (P p)

Manal A Swairjo, Robert R Reddy, Bobby Lee, Steven G Van Lanen, Shannon Brown, Valérie de Crécy-Lagard, Dirk Iwata-Reuyl, Paul Schimmel
Crystallization and preliminary X-ray characterization of the nitrile reductase QueF: a queuosine-biosynthesis enzyme.
Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun.: 2005, 61(Pt 10);945-8
[PubMed:16511203] [WorldCat.org] [DOI] (I p)

Steven G Van Lanen, John S Reader, Manal A Swairjo, Valérie de Crécy-Lagard, Bobby Lee, Dirk Iwata-Reuyl
From cyclohydrolase to oxidoreductase: discovery of nitrile reductase activity in a common fold.
Proc. Natl. Acad. Sci. U.S.A.: 2005, 102(12);4264-9
[PubMed:15767583] [WorldCat.org] [DOI] (P p)

John S Reader, David Metzgar, Paul Schimmel, Valérie de Crécy-Lagard
Identification of four genes necessary for biosynthesis of the modified nucleoside queuosine.
J. Biol. Chem.: 2004, 279(8);6280-5
[PubMed:14660578] [WorldCat.org] [DOI] (P p)