(redirected from phosphatidyl inositol 4,5-biphosphate)
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phos·pha·ti·dyl (Ptd),

The radical of a phosphatidic acid; for example, phosphatidylcholine.


any of several univalent groups derived from phosphatidic acid; includes phosphatidyl choline, phosphatidyl ethanolamine, phosphatidyl inositol, and phosphatidyl serine.

phosphatidyl inositol 4,5-biphosphate
activated form of sulfur for S transfer.
phosphatidyl serine
a phospholipid found in mammalian cells.