Platelet-activating factor acetylhydrolase 2, cytoplasmic

Definition:

Catalyzes the hydrolyze of the acetyl group at the sn-2 position of platelet-activating factor (PAF) and its analogs, leading to their inactivation. Hydrolyzes propionyl and butyroyl moieties approximately half as effectively as PAF (By similarity). Also catalyzes transacetylation of the acetyl group from platelet-activating factor (PAF) to lysoplasmalogen and to sphingosine, producing plasmalogen analogs of PAF and N-acetylsphingosine (C2-ceramide) respectively. Has a marked selectivity for phospholipids with short acyl chains at the sn-2 position (By similarity).

References:

[1]. S Q Rice, et al. Expression, purification and characterization of a human serine-dependent phospholipase A2 with high specificity for oxidized phospholipids and platelet activating factor. Biochem J. 1998 Mar 15;330 ( Pt 3)(Pt 3):1309-15. [Content Brief]

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