pyruvate dehydrogenase (dihydrolipoamide acetyltransferase E2 subunit)
function
links glycolysis and TCA cycle
product
pyruvate dehydrogenase (dihydrolipoamide acetyltransferase E2 subunit)
Genomic Context
categories
[category|SW 2|Metabolism] → [category|SW 2.2|Carbon metabolism] → [category|SW 2.2.1|Carbon core metabolism] → [category|SW 2.2.1.4|TCA cycle][category|SW 3|Information processing] → [category|SW 3.1|Genetics] → [category|SW 3.1.9|Newly identified competence genes][category|SW 6|Groups of genes] → [category|SW 6.2|Membrane proteins]Gene
Coordinates
1,530,537 → 1,531,865
Phenotypes of a mutant
defects in sporulation and unable to grow on glucose as single carbon source [Pubmed|11976308]The protein
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)
[protein|C4B6C3EE560C8BD353FEABB1A607C89C20DC8D34|AcoC], [protein|262C9FD20C7A70B6F1FEB57735FA800F38EAB25A|BkdB], [protein|02BA02D10DFB06E51101D8CF76BCF5BED94D7CA2|OdhB]Kinetic information
Michaelis-Menten [Pubmed|6414463]Modification
phosphorylated (Ser/Thr/Tyr) [Pubmed|17726680][SW|Cofactors]
lipoic acid (on Lys-43), can probably be removed by [protein|A0A6CB19191A251BB5600C18E039978A9A34933C|SrtN] [pubmed|28900027]Effectors of protein activity
Inhibited by thiamine 2-thiothiazolone diphosphate and NADH [Pubmed|6414463]Low sensibility to NADPHStructure
[PDB|1W88] (E1 in complex with subunit binding domain of E2, ''Geobacillus stearothermophilus''), [PDB|2PDE] (peripheral subunit binding domain, ''Geobacillus stearothermophilus''), [PDB|1LAC] (lipoyl domain, ''Geobacillus stearothermophilus''), [PDB|1B5S] (catalytic domain (residues 184-425) , ''Geobacillus stearothermophilus'')[SW|Localization]
membrane associated [Pubmed|18763711]cytoplasm (homogeneously distributed throughout the cell) [Pubmed|24825009]additional information
belongs to the 100 [SW|most abundant proteins] [PubMed|15378759]Expression and Regulation
Operons
genes
[gene|953DE0F0B81894ECFF4C0693511AC238BF3D0C0A|pdhA]-[gene|458E967052D1093A0F48AE0E6B6CCA0F52EAC44D|pdhB]-[gene|2F40086E35FA32136B9A89C530A86D714FE9460C|pdhC]-[gene|E9BBAE86DF3E536A987179CC394B472F6F710498|pdhD]
description
[Pubmed|11976308]
sigma factors
[protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|20081037], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]regulatory mechanism
[regulon|stringent response|stringent response]: negative regulation, due to presence of guanine at 1 position of the transcript [Pubmed|20081037], in [regulon|stringent response|stringent response]regulation
''[protein|search|pdhA]'': expression activated by glucose (1.9-fold) [Pubmed|12850135]view in new tabgenes
[gene|2F40086E35FA32136B9A89C530A86D714FE9460C|pdhC]-[gene|E9BBAE86DF3E536A987179CC394B472F6F710498|pdhD]
description
[Pubmed|11976308]
regulation
''[protein|search|pdhA]'': expression activated by glucose (1.9-fold) [Pubmed|12850135]view in new tabBiological materials
Mutant
BKE14600 (Δ[gene|2F40086E35FA32136B9A89C530A86D714FE9460C|pdhC]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE14600 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CACAGTTCTCGACCTCCTAG, downstream forward: _UP4_TTAATTTTAATGGAGGCGTABKK14600 (Δ[gene|2F40086E35FA32136B9A89C530A86D714FE9460C|pdhC]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK14600 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CACAGTTCTCGACCTCCTAG, downstream forward: _UP4_TTAATTTTAATGGAGGCGTALabs working on this gene/protein
[SW|Arthur Aronson], Purdue University, West Lafayette, USA [http://wwwdev.gradschool.purdue.edu/PULSe/faculty.cfm?fid=5&range=0 homepage]References
Reviews
19476487,9655937,2227213,6805383,1794583,24798336,27074917 Original publications
9352926,24825009,9352926,17726680,12850135,18763711,6414463,11976308,20081037,22862776,15378759,28900027