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NMR characterization of native liquid spider dragline silk from Nephila edulis

Hronska, M., van Beek, J.D., Williamson, P.T.F., Vollrath, Fritz and Meier, Beat H. (2004) NMR characterization of native liquid spider dragline silk from Nephila edulis Biomacromolecules, 5, (3), pp. 834-839. (doi:10.1021/bm0343904).

Record type: Article


Solid spider dragline silk is well-known for its mechanical properties. Nonetheless a detailed picture of the spinning process is lacking. Here we report NMR studies on the liquid silk within the wide sac of the major ampullate (m.a.) gland from the spider Nephila edulis. The resolution in the NMR spectra is shown to be significantly improved by the application of magic-angle spinning (MAS). From the narrow width of the resonance lines and the chemical shifts observed, it is concluded that the silk protein within the wide sac of the m.a. gland is dynamically disordered throughout the molecule in the sense that each amino acid of a given type senses an identical environment, on average. The NMR data obtained are consistent with an isotropic liquid phase.

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Published date: May 2004


Local EPrints ID: 56445
ISSN: 1525-7797
PURE UUID: 5f73dd2b-ef17-453d-bd1f-bae8df7a5b97
ORCID for P.T.F. Williamson: ORCID iD

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Date deposited: 07 Aug 2008
Last modified: 17 Jul 2017 14:30

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Author: M. Hronska
Author: J.D. van Beek
Author: Fritz Vollrath
Author: Beat H. Meier

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