Journal of Lipid Research, Vol 28, 949-954, Copyright © 1987 by Lipid Research, Inc.
Synthesis of a thiophosphate analog of dioctanoylphosphatidylcholine: a phospholipase C substrate
WR Snyder
Department of Chemistry, Northern Illinois University, DeKalb 60115.
Dioctanoylthiophosphatidylcholine, a racemic thiophosphate analog of L-
alpha-dioctanoylphosphatidylcholine, has been synthesized and isolated by
flash chromatography. In contrast with the
didecanoylthiophosphatidylcholine synthesized previously, the analog is
easily dispersed on sonication in aqueous media and is rapidly hydrolyzed
to produce a free thiol group in the presence of the extracellular
phospholipase C from either Bacillus cereus or Clostridium perfringens.
When 5,5'-dithiobis (2-nitro-benzoic acid) was included as a thiol reactive
chromogenic agent, the resultant measurement of product release, as an
increase in absorbance at 412 nm, showed a linear relationship with added
enzyme.