Synthesis of Fatty Acids by Yeast Particles
AUTOR(ES)
Klein, Harold P.
RESUMO
Klein, Harold P. (Ames Research Center, Moffett Field, Calif.). Synthesis of fatty acids by yeast particles. J. Bacteriol. 92:130–135. 1966.—When a mitochondria-free homogenate of Saccharomyces cerevisiae was centrifuged at 100,000 × g for 60 min, the sedimented crude particles incorporated acetate into fatty acids, but not into nonsaponifiable lipids. Degradation of the fatty acids formed indicated this to be de novo synthesis rather than chain elongation. Subfractions of the crude particles were obtained. The “ribosomal” fraction was unable to synthesize fatty acids, but had properties indicating the presence of acetokinase, fatty acid desaturase, and, probably, acetyl-coenzyme A carboxylase. A “light” particle fraction with a high specific activity of fatty acid synthetase was also obtained. Fatty acid synthesis by the “soluble” supernatant fluid appeared to be the result of contamination by the “light” particles. The data suggested the presence of several particulate entities in mitochondria-free homogenates.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=276206Documentos Relacionados
- THE ENZYMATIC SYNTHESIS OF FATTY ACIDS BY ALDOL CONDENSATION
- Synthesis and utilization of fatty acids by wild-type and fatty acid auxotrophs of Caulobacter crescentus.
- Propionate-induced synthesis of odd-chain-length fatty acids by Escherichia coli.
- Very Long-Chain Fatty Acids in Yeast
- Substrate Specificity for the Synthesis of Cyclic Fatty Acids by a Flaxseed Extract 1
