Difference between revisions of "Icd"

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* '''Sigma factor:''' [[SigA]]
 
* '''Sigma factor:''' [[SigA]]
  
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* '''Regulation:''' repressed by glucose (2.2-fold) ([[CcpA]]) [http://www.ncbi.nlm.nih.gov/pubmed/12850135 PubMed],  ''[[citZ]]'': catabolite repression ([[CcpA]]), repression by glucose + glutamate ([[CcpC]])
+
* '''Regulation:'''  
 +
** ''[[citZ]]'': catabolite repression ([[CcpA]]) [http://www.ncbi.nlm.nih.gov/pubmed/12850135 PubMed]
 
** repressed in the presence of glucose and glutamate ([[CcpC]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/10656796 PubMed]
 
** repressed in the presence of glucose and glutamate ([[CcpC]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/10656796 PubMed]
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''[[icd]]'': constitutive  
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** ''[[icd]]'': constitutive  
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* '''Regulatory mechanism:''' [[CcpA]]: transcription repression
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* '''Regulatory mechanism:'''  
 +
** [[CcpA]]: transcription repression
 
** [[CcpC]]: transcription repression (molecular inducer: citrate) [http://www.ncbi.nlm.nih.gov/sites/entrez/10656796 PubMed]
 
** [[CcpC]]: transcription repression (molecular inducer: citrate) [http://www.ncbi.nlm.nih.gov/sites/entrez/10656796 PubMed]
  
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<pubmed>10656796,12850135 10348849 11751849 18763711 17726680 16493705 4147570 </pubmed>
 
<pubmed>10656796,12850135 10348849 11751849 18763711 17726680 16493705 4147570 </pubmed>
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# Blencke et al. (2003) Transcriptional profiling of gene expression in response to glucose in ''Bacillus subtilis'': regulation of the central metabolic pathways. ''Metab Eng.'' '''5:''' 133-149 [http://www.ncbi.nlm.nih.gov/pubmed/12850135 PubMed]
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# Matsuno K, Blais T, Serio AW, Conway T, Henkin TM, Sonenshein AL (1999) Metabolic imbalance and sporulation in an isocitrate dehydrogenase mutant of Bacillus subtilis. J Bacteriol 181:3382-3391. [http://www.ncbi.nlm.nih.gov/sites/entrez/10348849 PubMed]
 
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# Singh SK, Miller SP, Dean A, Banaszak LJ, LaPorte DC (2002) Bacillus subtilis isocitrate dehydrogenase. A substrate analogue for Escherichia coli isocitrate dehydrogenase kinase/ phosphatase. J Biol Chem 277: 7567-7573. [http://www.ncbi.nlm.nih.gov/sites/entrez/11751849 PubMed]
 
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# Hahne et al. (2008) From complementarity to comprehensiveness - targeting the membrane proteome of growing ''Bacillus subtilis'' by divergent approaches. Proteomics 8: 4123-4136 [http://www.ncbi.nlm.nih.gov/pubmed/18763711 PubMed]
 
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# Eymann et al. (2007) Dynamics of protein phosphorylation on Ser/Thr/Tyr in ''Bacillus subtilis''. Proteomics 7: 3509-3526. [http://www.ncbi.nlm.nih.gov/pubmed/17726680 PubMed]
 
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# Levine et al. (2006) Analysis of the dynamic ''Bacillus subtilis'' Ser/Thr/Tyr phosphoproteome implicated in a wide variety of cellular processes. Proteomics 6, 2157-2173. [http://www.ncbi.nlm.nih.gov/pubmed/16493705 PubMed]
 
 
# Author1, Author2 & Author3 (year) Title ''Journal'' '''volume:''' page-page. [http://www.ncbi.nlm.nih.gov/sites/entrez/PMID PubMed]
 
# Author1, Author2 & Author3 (year) Title ''Journal'' '''volume:''' page-page. [http://www.ncbi.nlm.nih.gov/sites/entrez/PMID PubMed]

Revision as of 20:12, 12 June 2009

  • Description: isocitrate dehydrogenase

Gene name icd
Synonyms citC
Essential no
Product isocitrate dehydrogenase
Function TCA cycle
Metabolic function and regulation of this protein in SubtiPathways:
Central C-metabolism
MW, pI 46 kDa, 4.833
Gene length, protein length 1269 bp, 423 aa
Immediate neighbours citZ, mdh
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
Icd context.gif
This image was kindly provided by SubtiList



The gene

Basic information

  • Locus tag: BSU29130

Phenotypes of a mutant

reduced ability to sporulate PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Isocitrate + NADP+ = 2-oxoglutarate + CO2 + NADPH (according to Swiss-Prot)
  • Protein family: isocitrate and isopropylmalate dehydrogenases family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information: Reversible Michaelis-Menten PubMed
  • Domains:
  • Cofactor(s): Mg2+, Mn2+
  • Effectors of protein activity:
    • Inhibited by glyoxylate, oxaloacetate and oxalomalate PubMed
      • Better inhibition when glyoxylate and oxaloacetate is combined, probably due to the non-enzymatic conversion into oxalomalate, which is a strong inhibitor PubMed
  • Interactions:
  • Localization: attached to the membrane PubMed

Database entries

  • KEGG entry: [3]

Additional information

This enzyme requires NADP+ exclusively. No activity was seen on the presence on NAD+ PubMed

Expression and regulation

  • Regulation:
  • Regulatory mechanism:
    • CcpA: transcription repression
    • CcpC: transcription repression (molecular inducer: citrate) PubMed
  • Additional information:

Biological materials

  • Mutant: GP666 (spc), GP672 (erm), available in Stülke lab
  • Expression vector:
    • pGP1121 (N-terminal Strep-tag, for SPINE, purification from B. subtilis, in pGP380) (available in Stülke lab)
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab

Labs working on this gene/protein

[Linc Sonenshein|Linc Sonenshein]], Tufts University, Boston, MA, USA Homepage

Your additional remarks

References


  1. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed
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