Biology:Pyruvate dehydrogenase (quinone)

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Pyruvate dehydrogenase (quinone)
Identifiers
EC number1.2.5.1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Pyruvate dehydrogenase (quinone) (EC 1.2.5.1, pyruvate dehydrogenase, pyruvic dehydrogenase, pyruvic (cytochrome b1) dehydrogenase, pyruvate:ubiquinone-8-oxidoreductase, pyruvate oxidase (ambiguous)) is an enzyme with systematic name pyruvate:ubiquinone oxidoreductase.[1][2][3][4][5][6][7][8] This enzyme catalyses the following chemical reaction

pyruvate + ubiquinone + H2O [math]\displaystyle{ \rightleftharpoons }[/math] acetate + CO2 + ubiquinol

This bacterial enzyme is located on the inner surface of the cytoplasmic membrane.

References

  1. "Reconstitution of native Escherichia coli pyruvate oxidase from apoenzyme monomers and FAD". The Journal of Biological Chemistry 257 (21): 12878–86. November 1982. PMID 6752142. 
  2. "Reactivation of the lipid-depleted pyruvate oxidase system from Escherichia coli with cell envelope neutral lipids". The Journal of Biological Chemistry 250 (18): 7139–46. September 1975. PMID 1100621. 
  3. "Reconstitution of the membrane-bound, ubiquinone-dependent pyruvate oxidase respiratory chain of Escherichia coli with the cytochrome d terminal oxidase". Biochemistry 23 (3): 445–53. January 1984. doi:10.1021/bi00298a008. PMID 6367818. 
  4. "In vivo function of Escherichia coli pyruvate oxidase specifically requires a functional lipid binding site". Biochemistry 25 (13): 3748–51. July 1986. doi:10.1021/bi00361a003. PMID 3527254. 
  5. "Role of the tetrameric structure of Escherichia coli pyruvate oxidase in enzyme activation and lipid binding". The Journal of Biological Chemistry 266 (17): 10959–66. June 1991. PMID 2040613. 
  6. "Sulfhydryl chemistry detects three conformations of the lipid binding region of Escherichia coli pyruvate oxidase". Biochemistry 36 (39): 11564–73. September 1997. doi:10.1021/bi9709102. PMID 9305946. 
  7. "Preparation of Escherichia coli pyruvate oxidase utilizing a thiamine pyrophosphate affinity column". Biochimica et Biophysica Acta (BBA) - Enzymology 452 (1): 13–29. November 1976. doi:10.1016/0005-2744(76)90054-1. PMID 791368. 
  8. "Role of flavin in acetoin production by two bacterial pyruvate oxidases". Archives of Biochemistry and Biophysics 300 (1): 364–71. January 1993. doi:10.1006/abbi.1993.1049. PMID 8424670. 

External links