Bnip-2 interacts with Cdc42 through its Bnip-2 and Cdc42GAP homology (BCH) domain and thus it acts as a linkage between the CDO receptor and the Cdc42 activity. Formation of a CDO-Bnip-2-Cdc42 complex stimulates Cdc42 activation which in turn promotes p38 alpha/beta activity and cell differentiation.
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