A Genetic Screen for Aminophospholipid Transport Mutants Identifies the Phosphatidylinositol 4-Kinase, Stt4p, as an Essential Component in Phosphatidylserine Metabolism

Abstract excerpt

In an effort to understand molecular mechanisms of intracellular lipid transport, we have focused upon specific events required for de novo aminophospholipid synthesis in the yeast Saccharomyces cerevisiae. A genetic system for examining the steps between phosphatidylserine (PtdSer) synthesis in the endoplasmic reticulum and its transport to and decarboxylation by PtdSer decarboxylase 2 in the Golgi/vacuole has...

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