Quantifying the fraction of glycine and alanine in β-sheet and helical conformations in spider dragline silk using solid-state NMR

Literature Information

Publication Date 2008-09-29
DOI 10.1039/B812928B
Impact Factor 6.222
Authors

Gregory P. Holland, Janelle E. Jenkins, Melinda S. Creager, Randolph V. Lewis, Jeffery L. Yarger


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Abstract

Solid-state two-dimensional refocused INADEQUATE MAS NMR experiments resolve distinct helical and β-sheet conformational environments for both alanine and glycine in Nephila clavipes dragline silk fibers; the fraction of alanine and glycine in β-sheet structures is determined to be 82% ± 4% and 28% ± 5%, respectively.

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