Extensively hydrated but folded: a novel state of globular proteins stabilized at high pressure and low temperature.

Abstract excerpt

We studied conformational fluctuations of the transcription factor c-Myb R2 subdomain (52 residues with three Trp) at high pressure and low temperature (5°C) using two different spectroscopic methods, Trp fluorescence and (1)H NMR, on its chemically stable mutant C130I (pseudo-wild-type (WT(S))), which has a large internal cavity. As pressure was increased from 3 to 300 MPa, the Trp fluorescence λ(max) of WT(S)...

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