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  Domain Name: PX_PLD
The phosphoinositide binding Phox Homology domain of Phospholipase D. The PX domain is a phosphoinositide (PI) binding module present in many proteins with diverse functions such as cell signaling, vesicular trafficking, protein sorting, and lipid modification, among others. Phospholipase D (PLD) catalyzes the hydrolysis of the phosphodiester bond of phosphatidylcholine to generate membrane-bound phosphatidic acid and choline. Members of this subfamily contain PX and Pleckstrin Homology (PH) domains in addition to the catalytic domain. PLD activity has been detected in viruses, bacteria, yeast, plants, and mammals, but the PX domain is not present in PLDs from viruses and bacteria. PLDs are implicated in many cellular functions like signaling, cytoskeletal reorganization, vesicular transport, stress responses, and the control of differentiation, proliferation, and survival. Vertebrates contain two PLD isozymes, PLD1 and PLD2. PLD1 is located mainly in intracellular membranes while PLD2 is associated with plasma membranes. The PX domain is involved in targeting of proteins to PI-enriched membranes, and may also be involved in protein-protein interaction.
No pairwise interactions are available for this conserved domain.

Total Mutations Found: 1
Total Disease Mutations Found: 0
This domain occurred 2 times on human genes (4 proteins).




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Range on the Protein:  

   Protein ID            Protein Position

Domain Position:  


Feature Name:Total Found:
phosphoinositide binding














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Please Cite: Peterson, T.A., Adadey, A., Santana-Cruz ,I., Sun, Y., Winder A, Kann, M.G., (2010) DMDM: Domain Mapping of Disease Mutations. Bioinformatics 26 (19), 2458-2459.

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