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Chem. Commun., 2008, 5568 - 5570, DOI: 10.1039/b812928b

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

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

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

Graphical abstract image for this article (ID: b812928b)