Mechanism of a hereditary cataract phenotype. Mutations in alphaA-crystallin activate substrate binding.

Abstract excerpt

We present a novel hypothesis for the molecular mechanism of autosomal dominant cataract linked to two mutations in the alphaA-crystallin gene of the ocular lens. AlphaA-crystallin is a molecular chaperone that plays a critical role in the suppression of protein aggregation and hence in the long term maintenance of lens optical properties. Using a steady state binding assay in which the chaperone-substrate...

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