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Saccharomyces cerevisiae csg2Delta mutants accumulate the sphingolipid inositolphosphorylceramide, which renders the cells Ca2+-sensitive. Temperature-sensitive mutations that suppress the Ca2+(More)
Saccharomyces cerevisiae cells require two genes, CSG1/SUR1 and CSG2, for growth in 50 mM Ca2+, but not 50 mM Sr2+. CSG2 was previously shown to be required for the mannosylation of(More)
Serine palmitoyltransferase (SPT) catalyzes the first step in sphingolipid biosynthesis, and downregulation of this enzyme provides a means for exploring sphingolipid function in cells. We have(More)