Evidence that a salt bridge in the light chain contributes to the physical stability difference between heavy and light human ferritins.

Abstract excerpt

Human ferritin, a multimeric iron storage protein, is composed by various proportions of two subunit types: the H- and L-chains. The biological functions of these two genic products have not been clarified, although differences in reactivity with iron have been shown. Starting from the hypothesis that the high stability typical of ferritin is an important property which may be relevant for its iron storage...

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