Rates of fatty acid oxidations by P450 compound I are pH dependent

Chembiochem. 2012 Sep 24;13(14):2061-4. doi: 10.1002/cbic.201200387. Epub 2012 Aug 13.

Abstract

The rates of oxidation of fatty acids by CYP119 compound I were dependent on the pH of the medium. The plot shows log k values for reactions of acids as a function of pH, where the slopes indicate mixed third-order and fourth-order dependence on base concentration. For palmitic acid, the rate increased 50-fold over the pH range 6.8-7.3.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Archaeal Proteins / chemistry
  • Archaeal Proteins / metabolism*
  • Caprylates / chemistry
  • Caprylates / metabolism
  • Cytochrome P-450 Enzyme System / chemistry
  • Cytochrome P-450 Enzyme System / metabolism*
  • Fatty Acids / chemistry
  • Fatty Acids / metabolism*
  • Hydrogen-Ion Concentration
  • Kinetics
  • Lauric Acids / chemistry
  • Lauric Acids / metabolism
  • Oxidation-Reduction
  • Palmitic Acid / chemistry
  • Palmitic Acid / metabolism
  • Stereoisomerism

Substances

  • Archaeal Proteins
  • Caprylates
  • Fatty Acids
  • Lauric Acids
  • lauric acid
  • Palmitic Acid
  • Cytochrome P-450 Enzyme System
  • CYP119 protein, Sulfolobus solfataricus
  • octanoic acid