Effects of double bond configuration on lecithin synthesis (original) (raw)

Abstract

Stearyl-CoA, oleyl-CoA and elaidyl-CoA were prepared and tested as substances in synthesizing lecithin from 1- and 2-acyglycerol-3-phosphorylcholine. The rates of acyltransfer were followed by a continuous spectrophotometric assay. The enzyme(s) used to catalyze esterification at the 2-position did not discriminate appreciably between the_cis_ and_trans_ isomers of octadecenoate and transferred them more rapidly than the saturated acid, octadecanoate. However, the enzyme(s) which acted at the 1-position discriminated markedly between the geometric isomers and rapidly transferred to_trans_- octadecenoate and octadecanoate.

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References

  1. Sinclair, R. G., J. Biol. Chem.111, 515–526 (1935).
    CAS Google Scholar
  2. Coots, R. H., J. Lipid Res.5, 468–472 (1964).
    CAS Google Scholar
  3. Ono, K., and D. S. Fredrickson, J. Biol. Chem.239, 2482–2488 (1964).
    CAS Google Scholar
  4. Sinclair, R. G., J. Biol. Chem.134, 89–94 (1940).
    CAS Google Scholar
  5. Lands, W. E. M., and P. Hart, J. Biol. Chem.240, in press.
  6. Hanahan, D. J., in M. J. Coon (Ed.) Biochemical Preparations, Vol. 9, Wiley, New York, 1962, p. 55–58.
    Google Scholar
  7. Seubert, W., in H. A. Lardy (Ed.) Biochemical Preparations, Vol. 7, Wiley, New York, 1960, p. 80–83.
    Google Scholar
  8. Ellman, G. L., Arch. Biochem. Biophys.82, 70–79 (1959).
    Article CAS Google Scholar
  9. Kennedy, E. P., Ann. Rev. Biochem.26, 119–148 (1957).
    Article CAS Google Scholar
  10. Raulin, J., C. Loriette and G. Clement, Biochim. Biophys. Acta_70_, 642–646 (1963).
    Article CAS Google Scholar
  11. Weigensberg, B. I., and G. C. McMillan, Expt. Molec. Path.3, 201–214 (1964).
    Article CAS Google Scholar
  12. Anderson, J. T., F. Grande and A. Keys, J. Nutr.75, 388–394 (1961).
    CAS Google Scholar

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Authors and Affiliations

  1. Department of Biological Chemistry, The University of Michigan, Ann Arbor, Michigan
    W. E. M. Lands

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Lands, W.E.M. Effects of double bond configuration on lecithin synthesis.J Am Oil Chem Soc 42, 465–467 (1965). https://doi.org/10.1007/BF02540085

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