Hybrid insulin receptors. Molecular mechanisms of negative-dominant mutations in receptor-mediated insulin resistance.

Abstract excerpt

Certain syndromes of extreme insulin resistance are the result of negative-dominant mutations of the insulin receptor. The insulin-receptor heterotetramer appears to be the minimal functional unit for insulin signal transduction probably due to a requirement for intersubunit interactions. The observation that insulin and insulinlike growth factor I receptors can be found in hybrid heterotetramers suggests that...

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