Difference between revisions of "IlvC"

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(Expression and regulation)
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* '''[[Sigma factor]]:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/1577690 PubMed]
 
* '''[[Sigma factor]]:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/1577690 PubMed]
  
* '''Regulation:''' repressed by casamino acids [http://www.ncbi.nlm.nih.gov/pubmed/12107147 PubMed] ,  expressed in the absence of branched-chain amino acids (BCAA), expression is stimulated in the presence of glucose [http://www.ncbi.nlm.nih.gov/sites/entrez/12193635 PubMed], repressed by [[CodY]] [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
+
* '''Regulation:'''  
 +
** repressed by casamino acids [http://www.ncbi.nlm.nih.gov/pubmed/12107147 PubMed]  
 +
** expression is stimulated in the presence of glucose [http://www.ncbi.nlm.nih.gov/sites/entrez/12193635 PubMed]  
 
** repressed in the absence of good nitrogen sources (glutamine or ammonium) ([[TnrA]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/15547269 PubMed]
 
** repressed in the absence of good nitrogen sources (glutamine or ammonium) ([[TnrA]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/15547269 PubMed]
** repressed during growth in the presence of branched chain amino acids ([[CodY]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
+
** repressed during growth in the presence of branched chain amino acids ([[CodY]], [[T-box]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
  
* '''Regulatory mechanism:''' [[CodY]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed], glucose regulation: [[CcpA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/12193635 PubMed], repression by BCAA: tRNA-controlled RNA switch (T-box) that mediates termination/antitermination
+
* '''Regulatory mechanism:'''  
 +
** [[CodY]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]  
 +
** [[CcpA]]: transcription activation [http://www.ncbi.nlm.nih.gov/sites/entrez/12193635 PubMed]
 +
** [[T-box]]: tRNA-controlled [[RNA switch]] that mediates termination/antitermination
 
** [[TnrA]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/15547269 PubMed]
 
** [[TnrA]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/15547269 PubMed]
** [[CodY]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
 
  
 
* '''Additional information:'''
 
* '''Additional information:'''

Revision as of 18:26, 29 October 2009

  • 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







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:
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • Structure:
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
    • 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:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References