Determining hydrogen-bond interactions in spider silk with 1H-13C HETCOR fast MAS solid-state NMR and DFT proton chemical shift calculations.
Related Articles Determining hydrogen-bond interactions in spider silk with 1H-13C HETCOR fast MAS solid-state NMR and DFT proton chemical shift calculations.
Chem Commun (Camb). 2013 Jul 28;49(59):6680-2
Authors: Holland GP, Mou Q, Yarger JL
Abstract
Two-dimensional (2D) (1)H-(13)C heteronuclear correlation (HETCOR) solid-state NMR spectra collected with fast magic angle spinning (MAS) are used in conjunction with density functional
theory (DFT) proton chemical shift calculations to determine the hydrogen-bonding strength for ordered ?-sheet and disordered 310-helical structures in spider dragline silk. The hydrogen-bond strength is determined to be identical for both structures in spider silk with a 1.83-1.84 Å NH···OC hydrogen-bond distance.
PMID: 23774714 [PubMed - indexed for MEDLINE]
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