Figure 4.
The C1 domain of Vav1. (A) Overlap of the C1 domain of Vav1 (orange) with that of the typical C1 domain of PKCδ bound to phorbol-13-acetate (1PTR, blue) and the atypical C1 domain of Raf1 (1FAR, green). The ligand bound to PKCδ is shown in a ball-and-stick representation. (B) Surface representation of the C1 domain of PKCδ with bound phorbol acetate. (C) Surface representation of Vav1 DH–PH–C1 shows a pocket in the C1 domain in the same position in which phorbol acetate is bound to PKCδ (shown for comparison). DH, Dbl homology; PH, pleckstrin homology; PKCδ, protein kinase Cδ.