The folding pathway of an FF domain: characterization of an on-pathway intermediate state under folding conditions by (15)N, (13)C(alpha) and (13)C-methyl relaxation dispersion and (1)H/(2)H-exchange NMR spectroscopy.

Abstract excerpt

The FF domain from the human protein HYPA/FBP11 folds via a low-energy on-pathway intermediate (I). Elucidation of the structure of such folding intermediates and denatured states under conditions that favour folding are difficult tasks. Here, we investigated the millisecond time-scale equilibrium folding transition of the 71-residue four-helix bundle wild-type protein by (15)N, (13)C(alpha) and methyl(13)C...

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