PdhC

• Description: pyruvate dehydrogenase (dihydrolipoamide acetyltransferase E2 subunit)
  
  

Gene name	pdhC
Synonyms
Essential	no
Product	pyruvate dehydrogenase (dihydrolipoamide acetyltransferase E2 subunit)
Function	links glycolysis and TCA cycle
Metabolic function and regulation of this protein in SubtiPathways: Central C-metabolism
MW, pI	47 kDa, 4.855
Gene length, protein length	1326 bp, 442 aa
Immediate neighbours	pdhB, pdhD
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU14600

Phenotypes of a mutant

• defects in sporulation and unable to grow on glucose as single carbon source PubMed

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Acetyl-CoA + enzyme N(6)-(dihydrolipoyl)lysine = CoA + enzyme N(6)-(S-acetyldihydrolipoyl)lysine (according to Swiss-Prot)

• Protein family: lipoyl-binding domain (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information: Michaelis-Menten PubMed

• Domains:

• Modification: phosphorylated (Ser/Thr/Tyr) PubMed

• Cofactor(s):

• Effectors of protein activity:
  • Inhibited thiamine 2-thiothiazolone diphosphate and NADH PubMed
  • Low sensibility to NADPH

• Interactions: PdhA-PdhB-PdhC-PdhD

• Localization: membrane associated PubMed

Database entries

• Structure: 1W88 (E1 in complex with subunit binding domain of E2, Geobacillus stearothermophilus), 2PDE (peripheral subunit binding domain, Geobacillus stearothermophilus), 1LAC (lipoyl domain, Geobacillus stearothermophilus), 1B5S (catalytic domain (residues 184-425) , Geobacillus stearothermophilus)
• Swiss prot entry: P21883

• KEGG entry: [3]

• E.C. number: 2.3.1.12 2

Expression and regulation

• Operon: pdhA-pdhB-pdhC-pdhD

• Sigma factor: SigA

• Regulation: expression activated by glucose (1.9 fold) PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Arthur Aronson, Purdue University, West Lafayette, USA homepage

References

1. 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 PubMed
2. Hahne et al. (2008) From complementarity to comprehensiveness - targeting the membrane proteome of growing Bacillus subtilis by divergent approaches. Proteomics 8: 4123-4136 PubMed
3. Gao et al. (2002) The E1beta and E2 subunits of the Bacillus subtilis pyruvate dehydrogenase complex are involved in regulation of sporulation.J. Bacteriol. 184: 2780-2788. PubMed
4. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed