Cryo-EM and biochemical characterization of a BRAF/CRAF heterodimer shows that the NtA motif negative charge is dispensable for RAF activation.
Upon RAS-driven membrane recruitment, RAF kinases ARAF, BRAF, and CRAF are activated through homo- or heterodimerization to initiate MAP kinase signaling. Although RAF heterodimers drive physiologic and oncogenic signaling, they remain little studied structurally and biochemically. Here, we report the preparation, bioc...