A cross‐strand Trp–Trp pair stabilizes the hPin1 WW domain at the expense of function

Abstract excerpt

Using the human Pin1 WW domain (hPin1 WW), we show that replacement of two nearest neighbor non-hydrogen-bonded residues on adjacent beta-strands with tryptophan (Trp) residues increases beta-sheet thermodynamic stability by 4.8 kJ mol(-1) at physiological temperature. One-dimensional NMR studies confirmed that introduction of the Trp-Trp pair does not globally perturb the structure of the triple-stranded...

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