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Default Investigation of Intrinsically Disordered Proteins through Exchange with Hyperpolarized Water

From The DNP-NMR Blog:

Investigation of Intrinsically Disordered Proteins through Exchange with Hyperpolarized Water

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Kurzbach, D., et al., Investigation of Intrinsically Disordered Proteins through Exchange with Hyperpolarized Water. Angew. Chem. Int. Ed., 2017. 56(1): p. 389-392.


http://dx.doi.org/10.1002/anie.201608903


Hyperpolarized water can selectively enhance NMR signals of rapidly exchanging protons in osteopontin (OPN), a metastasis-associated intrinsically disordered protein (IDP), at near-physiological pH and temperature. The transfer of magnetization from hyperpolarized water is limited to solvent-exposed residues and therefore selectively enhances signals in 1H-15N correlation spectra. Binding to the polysaccharide heparin was found to induce the unfolding of preformed structural elements in OPN.
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