Figure 5 - full size

 

Figure 5.
Figure 5 Lipid-binding specificity of the PH[N]-PDZ-PH[C] supramodule using phospholipid strip overlay assay. (A) Binding of the PH[N]-PDZ-PH[C] tandem to the phospholipids spotted on a cellulose membrane. The amount of lipid per spot was 100 pmol. Abbreviations for the lipids: S1P: sphingosine-1-phosphate; LPA: lysophosphatidic acid; LPC: lysophosphocholine; PE: phosphatidylethanolamine; PS: phosphatidylserine; PA: phosphatidic acid; PC: phosphatidylcholine; PtdIns: phosphatidylinositol. The amount of protein used in the assay is 0.5 g/ml. (B) Binding isotherms of PH[N]-PDZ-PH[C] with PC/PS liposomes containing either 10 or 20% PI(3,5)P[2]. (C) Identification of the residues in the split PH domain of the PH[N]-PDZ-PH[C] tandem that are involved in the lipid binding.

The above figure is reprinted by permission from Macmillan Publishers Ltd: Embo J (2005, 24, 3985-3995) copyright 2005.