The disordered hypervariable region and the folded catalytic domain of oncogenic K-Ras4B partner in phospholipid binding.

Abstract excerpt

The C-terminal hypervariable region (HVR) of the splice variant KRAS4B is disordered. Classically, the role of the post-translationally-modified HVR is to navigate Ras in the cell and to anchor it in localized plasma membrane regions. Here, we propose additional regulatory roles, including auto-inhibition by shielding the effector binding site in the GDP-bound state and release upon GTP binding and in the...

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