Difference between revisions of "IlvC"

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(Categories containing this gene/protein)
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= [[Categories]] containing this gene/protein =
 
= [[Categories]] containing this gene/protein =
{{SubtiWiki category|[[biosynthesis/ acquisition of amino acids]]}}
+
{{SubtiWiki category|[[biosynthesis/ acquisition of amino acids]]}},
 +
{{SubtiWiki category|[[phosphoproteins]]}}
  
 
= This gene is a member of the following [[regulons]] =
 
= This gene is a member of the following [[regulons]] =

Revision as of 15:20, 20 April 2012

  • Description: ketol-acid reductoisomerase (2,3-dihydroxy-3-methylbutanoate, 2-acetolactate)

Gene name ilvC
Synonyms
Essential no
Product ketol-acid reductoisomerase
(2,3-dihydroxy-3-methylbutanoate, 2-acetolactate)
Function biosynthesis of branched-chain amino acids
Metabolic function and regulation of this protein in SubtiPathways:
Ile, Leu, Val, Coenzyme A
MW, pI 37 kDa, 5.37
Gene length, protein length 1026 bp, 342 aa
Immediate neighbours leuA, ilvH
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
IlvC context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
IlvC expression.png




























Categories containing this gene/protein

biosynthesis/ acquisition of amino acids, phosphoproteins

This gene is a member of the following regulons

CcpA regulon, CodY regulon, T-box, TnrA regulon

The gene

Basic information

  • Locus tag: BSU28290

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: (R)-2,3-dihydroxy-3-methylbutanoate + NADP+ = (S)-2-hydroxy-2-methyl-3-oxobutanoate + NADPH (according to Swiss-Prot)
  • Protein family: ketol-acid reductoisomerase family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification: phosphorylated on Ser-338 PubMed
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure: 1NP3 (from Escherichia coli, 53% identity, 71% similarity) PubMed
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation: for a complete overview on the regulation of the ilv operon, see Brinsmade et al.
    • repressed by casamino acids PubMed
    • expression is stimulated in the presence of glucose PubMed
    • repressed in the absence of good nitrogen sources (glutamine or ammonium) (TnrA) PubMed
    • repressed during growth in the presence of branched chain amino acids (CodY, T-box) PubMed
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion: pGP521 (in pAC5), available in Stülke lab
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Shaun R Brinsmade, Roelco J Kleijn, Uwe Sauer, Abraham L Sonenshein
Regulation of CodY activity through modulation of intracellular branched-chain amino acid pools.
J Bacteriol: 2010, 192(24);6357-68
[PubMed:20935095] [WorldCat.org] [DOI] (I p)

Boumediene Soufi, Chanchal Kumar, Florian Gnad, Matthias Mann, Ivan Mijakovic, Boris Macek
Stable isotope labeling by amino acids in cell culture (SILAC) applied to quantitative proteomics of Bacillus subtilis.
J Proteome Res: 2010, 9(7);3638-46
[PubMed:20509597] [WorldCat.org] [DOI] (I p)

Ana Gutiérrez-Preciado, Tina M Henkin, Frank J Grundy, Charles Yanofsky, Enrique Merino
Biochemical features and functional implications of the RNA-based T-box regulatory mechanism.
Microbiol Mol Biol Rev: 2009, 73(1);36-61
[PubMed:19258532] [WorldCat.org] [DOI] (I p)

Shigeo Tojo, Takenori Satomura, Kanako Kumamoto, Kazutake Hirooka, Yasutaro Fujita
Molecular mechanisms underlying the positive stringent response of the Bacillus subtilis ilv-leu operon, involved in the biosynthesis of branched-chain amino acids.
J Bacteriol: 2008, 190(18);6134-47
[PubMed:18641142] [WorldCat.org] [DOI] (I p)

Shigeo Tojo, Takenori Satomura, Kaori Morisaki, Ken-Ichi Yoshida, Kazutake Hirooka, Yasutaro Fujita
Negative transcriptional regulation of the ilv-leu operon for biosynthesis of branched-chain amino acids through the Bacillus subtilis global regulator TnrA.
J Bacteriol: 2004, 186(23);7971-9
[PubMed:15547269] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Susanne Hennig, Michael Hecker, Georg Homuth
Transcriptional organization and posttranscriptional regulation of the Bacillus subtilis branched-chain amino acid biosynthesis genes.
J Bacteriol: 2004, 186(8);2240-52
[PubMed:15060025] [WorldCat.org] [DOI] (P p)

Virginie Molle, Yoshiko Nakaura, Robert P Shivers, Hirotake Yamaguchi, Richard Losick, Yasutaro Fujita, Abraham L Sonenshein
Additional targets of the Bacillus subtilis global regulator CodY identified by chromatin immunoprecipitation and genome-wide transcript analysis.
J Bacteriol: 2003, 185(6);1911-22
[PubMed:12618455] [WorldCat.org] [DOI] (P p)

Holger Ludwig, Christoph Meinken, Anastasija Matin, Jörg Stülke
Insufficient expression of the ilv-leu operon encoding enzymes of branched-chain amino acid biosynthesis limits growth of a Bacillus subtilis ccpA mutant.
J Bacteriol: 2002, 184(18);5174-8
[PubMed:12193635] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

F J Grundy, T M Henkin
Conservation of a transcription antitermination mechanism in aminoacyl-tRNA synthetase and amino acid biosynthesis genes in gram-positive bacteria.
J Mol Biol: 1994, 235(2);798-804
[PubMed:8289305] [WorldCat.org] [DOI] (P p)