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Trends Cell Biol. 2006 Jul;16(7):351-61. Epub 2006 Jun 21.

Phosphatidylinositol 4-kinases: old enzymes with emerging functions.

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  • 1Endocrinology and Reproduction Research Branch, NICHD, National Institutes of Health, Bethesda, MD 20892, USA.

Abstract

Phosphoinositides account for only a tiny fraction of cellular phospholipids but are extremely important in the regulation of the recruitment and activity of many signaling proteins in cellular membranes. Phosphatidylinositol (PtdIns) 4-kinases generate PtdIns 4-phosphate, the precursor of important regulatory phosphoinositides but also an emerging regulatory molecule in its own right. The four mammalian PtdIns 4-kinases regulate a diverse array of signaling events, as well as vesicular trafficking and lipid transport, but the mechanisms by which their lipid product PtdIns 4-phosphate controls these processes is only beginning to unfold.

PMID:
16793271
[PubMed - indexed for MEDLINE]
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