Santiago E. Faraj

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The N-terminal stretch of human frataxin (hFXN) intermediate (residues 42-80) is not conserved throughout evolution and, under defined experimental conditions, behaves as a random-coil. Overexpression of hFXN56-210 in Escherichia coli yields a multimer, whereas the mature form of hFXN (hFXN81-210) is monomeric. Thus, cumulative experimental evidence points(More)
Frataxin (FXN) is an α/β protein that plays an essential role in iron homeostasis. Apparently, the function of human FXN (hFXN) depends on the cooperative formation of crucial interactions between helix α1, helix α2, and the C-terminal region (CTR) of the protein. In this work we quantitatively explore these relationships using a purified recombinant(More)
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