Mapping molecular orientation in dry and wetNephila clavipesdragline spider silk
نویسندگان
چکیده
منابع مشابه
Molecular nanosprings in spider capture-silk threads.
Spider capture silk is a natural material that outperforms almost any synthetic material in its combination of strength and elasticity. The structure of this remarkable material is still largely unknown, because spider-silk proteins have not been crystallized. Capture silk is the sticky spiral in the webs of orb-weaving spiders. Here we are investigating specifically the capture spiral threads ...
متن کاملThe molecular structure of spider dragline silk: folding and orientation of the protein backbone.
The design principles of spider dragline silk, nature's high-performance fiber, are still largely unknown, in particular for the noncrystalline glycine-rich domains, which form the bulk of the material. Here we apply two-dimensional solid-state NMR to determine the distribution of the backbone torsion angles (phi,psi) as well as the orientation of the polypeptide backbone toward the fiber at bo...
متن کاملSpider Silk
Some things about spider silk are difficult to understand.The genetic code for one of the more perplexing types of silk—the strands spiders use to weave their egg cases. Each case must be tough enough to keep out parasites, impermeable to rain and fungus, and breathable while insulating eggs from temperature extremes. These qualities alone would make an impressive fabric.The egg cases may even ...
متن کاملNanostructure and molecular mechanics of spider dragline silk protein assemblies.
Spider silk is a self-assembling biopolymer that outperforms most known materials in terms of its mechanical performance, despite its underlying weak chemical bonding based on H-bonds. While experimental studies have shown that the molecular structure of silk proteins has a direct influence on the stiffness, toughness and failure strength of silk, no molecular-level analysis of the nanostructur...
متن کاملSpider Dragline Silk Molecular Properties and Recombinant Expression
Rising, A. 2007. Spider dragline silk – molecular properties and recombinant production. Doctor’s dissertation. ISSN: 1652-6880, ISBN: 978-91-576-7337-4 Spider dragline silk possesses several desirable features of a biomaterial; it has extraordinary mechanical properties, is biocompatible and biodegradable. It consists of large proteins, major ampullate spidroins (MaSp:s), that contain alternat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2009
ISSN: 1742-6596
DOI: 10.1088/1742-6596/186/1/012089