Difference between revisions of "LeuC"

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(Extended information on the protein)
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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:'''  
+
* '''Regulation:''' for a complete overview on the regulation of the ilv operon, see [http://www.ncbi.nlm.nih.gov/pubmed/20935095 Brinsmade ''et al''.]
 
** 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]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
 
** repressed by casamino acids [http://www.ncbi.nlm.nih.gov/pubmed/12107147 PubMed]  
 
** 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]
 
** 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]
 
 
** less expressed under conditions of extreme iron limitation ([[FsrA]]) [http://www.ncbi.nlm.nih.gov/pubmed/18697947 PubMed]
 
** less expressed under conditions of extreme iron limitation ([[FsrA]]) [http://www.ncbi.nlm.nih.gov/pubmed/18697947 PubMed]
  
 
* '''Regulatory mechanism:'''  
 
* '''Regulatory mechanism:'''  
 
** [[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]
 
 
** [[CodY]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/12618455 PubMed]
 
** [[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]
 
** 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
+
** repression by BCAA: tRNA-controlled [[RNA switch]] ([[T-box]]) that mediates termination/antitermination
 
** [[FsrA]]: translational repression [http://www.ncbi.nlm.nih.gov/pubmed/18697947 PubMed]
 
** [[FsrA]]: translational repression [http://www.ncbi.nlm.nih.gov/pubmed/18697947 PubMed]
  
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=References=
 
=References=
  
<pubmed>15060025,12193635,19258532,18697947,8289305,18641142,15547269,12618455,,15547269,12618455,12107147, </pubmed>
+
<pubmed>15060025,12193635,19258532,18697947,8289305,18641142,15547269,12618455,20935095,15547269,12618455,12107147, </pubmed>
  
 
[[Category:Protein-coding genes]]
 
[[Category:Protein-coding genes]]

Revision as of 10:37, 26 October 2010

  • Description: 3-isopropylmalate dehydratase (large subunit)

Gene name leuC
Synonyms
Essential no
Product 3-isopropylmalate dehydratase (large subunit)
Function biosynthesis of leucine
Metabolic function and regulation of this protein in SubtiPathways:
Ile, Leu, Val, Coenzyme A
MW, pI 52 kDa, 6.127
Gene length, protein length 1416 bp, 472 aa
Immediate neighbours leuD, leuB
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
LeuC context.gif
This image was kindly provided by SubtiList







The gene

Basic information

  • Locus tag: BSU28260

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: (2R,3S)-3-isopropylmalate = (2S)-2-isopropylmaleate + H2O (according to Swiss-Prot)
  • Protein family: LeuC type 1 subfamily (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s): contains an iron-sulfur cluster
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • Structure:
  • KEGG entry: [3]

Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation PubMed

Expression and regulation

  • Regulation: for a complete overview on the regulation of the ilv operon, see Brinsmade et al.
    • 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) PubMed
    • repressed by casamino acids PubMed
    • expression is stimulated in the presence of glucose PubMed
    • less expressed under conditions of extreme iron limitation (FsrA) PubMed
  • Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

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

Labs working on this gene/protein

Your additional remarks

References