Abstract
Abstract From the deacylated lipids of yeast cells grown on labeled inositol or 32Pi two compounds were isolated by ion exchange and paper chromatography. These were indistinguishable from glycerophosphorylinositol phosphate and glycerophosphorylinositol diphosphate from rat brain. The compounds treated with alkaline phosphatase gave rise to glycerophosphorylinositol and Pi in the expected ratios. The alkaline hydrolysis products were the same as those from the respective compounds obtained from rat brain. It is probable that the acylated parent lipids, diphosphoinositide and triphosphoinositide, are present in bakers' yeast.
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