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DEP (Dishevelled, Egl-10, and Pleckstrin) domain 2 found in P-Rex-like proteins. The P-Rex family is the guanine-nucleotide exchange factor (GEF) for the small GTPase Rac that contains an N-terminal RhoGEF domain, two DEP and PDZ domains. Rac-GEF activity is stimulated by phosphatidylinositol (3,4,5)-trisphosphate (PtdIns(3,4,5)P3), a lipid second messenger, and the G beta-gamma subunits of heterotrimeric G proteins. The DEP domains are not involved in mediating these stimuli, but may be of importance for basal and stimulated levels Rac-GEF activity.