Understanding the binding properties of an unusual metal-binding protein--a study of bacterial frataxin.

Abstract excerpt

Deficiency of the small mitochondrial protein frataxin causes Friedreich's ataxia, a severe neurodegenerative pathology. Frataxin, which has been highly conserved throughout evolution, is thought to be involved in, among other processes, Fe-S cluster formation. Independent evidence shows that it binds iron directly, although with very distinct features and low affinity. Here, we have carried out an extensive...

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