Title

Yeast Pgc1p (YPL206c) controls the amount of phosphatidylglycerol via a phospholipase C-type degradation mechanism

DOI

10.1074/jbc.M800868200

Document Type

Journal Article

Publication Date

6-20-2008

Publication Title

Journal of Biological Chemistry

Volume

283

Issue

25

First Page

17107

Last Page

17115

ISSN

219258

Abstract

The product of the open reading frame YPL206c, Pgc1p, of the yeast Saccharomyces cerevisiae displays homology to bacterial and mammalian glycerophosphodiester phosphodiesterases. Deletion of PGC1 causes an accumulation of the anionic phospholipid, phosphatidylglycerol (PG), especially under conditions of inositol limitation. This PG accumulation was not caused by increased production of phosphatidylglycerol phosphate or by decreased consumption of PG in the formation of cardiolipin, the end product of the pathway. PG accumulation in the pgc1Δ strain was caused rather by inactivation of the PG degradation pathway. Our data demonstrate an existence of a novel regulatory mechanism in the cardiolipin biosynthetic pathway in which Pgc1p is required for the removal of excess PG via a phospholipase C-type degradation mechanism. © 2008 by The American Society for Biochemistry and Molecular Biology, Inc.

Open Access

Green Final

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