Probably involved in the organization of the actin cytoskeleton by acting downstream of CDC42, inducing actin filament assembly. Alters CDC42-induced cell shape changes. In activated T-cells, may play a role in CDC42-mediated F-actin accumulation at the immunological synapse. May play a role in early contractile events in phagocytosis in macrophages.
Subcellular locations: Cytoplasm, Cytoskeleton, Cell membrane, Cell projection, Phagocytic cup
Recruited to the activated TCR prior actin polymerization. Localizes at the phagocytic cup of macrophages.
Widely expressed. Expressed at higher level in T-lymphocytes. Highly expressed in CCRF-CEM T-lymphocytes, Jurkat T-lymphocytes, and Raji B-lymphocytes compared (at protein level).