Discovery of a Cushing’s syndrome protein kinase A mutant that biases signaling through type I AKAPs

Abstract excerpt

Adrenal Cushing’s syndrome is a disease of cortisol hypersecretion often caused by mutations in protein kinase A catalytic subunit (PKAc). Using a personalized medicine screening platform, we discovered a Cushing’s driver mutation, PKAc-W196G, in ~20% of patient samples analyzed. Proximity proteomics and photokinetic imaging reveal that PKAc W196G is unexpectedly distinct from other described Cushing’s variants,...

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