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Spider prey-wrapping silk is an α-helical coiled-coil/β-sheet hybrid nanofiber†‡
Chemical Communications ( IF 4.3 ) Pub Date : 2018-08-31 00:00:00 , DOI: 10.1039/c8cc05246h
B. Addison 1, 2, 3, 4 , D. Onofrei 1, 2, 3, 4 , D. Stengel 1, 2, 3, 4 , B. Blass 4, 5, 6, 7 , B. Brenneman 4, 5, 6, 7 , J. Ayon 4, 5, 6, 7 , G. P. Holland 1, 2, 3, 4
Affiliation  

Solid-State NMR results on 13C-Ala/Ser and 13C-Val enriched Argiope argentata prey-wrapping silk show that native, freshly spun aciniform silk nanofibers are dominated by α-helical (∼50% total) and random-coil (∼35% total) secondary structures, with minor β-sheet nanocrystalline domains (∼15% total). This is the most in-depth study to date characterizing the protein structural conformation of the toughest natural biopolymer: aciniform prey-wrapping silks.

中文翻译:

蜘蛛猎物包裹的丝绸是一种α螺旋卷曲线圈/β片状混杂纳米纤维

13 C-Ala / Ser和13 C-Val富集的Argiope argentata猎物包缠丝上的固态NMR结果表明,天然,新鲜纺制的针状丝纳米纤维主要由α-螺旋(约占50%)和无规卷曲(二级结构总计约35%),具有次要的β-sheet纳米晶域(约15%)。迄今为止,这是最深入的研究,它表征了最坚韧的天然生物聚合物的蛋白质结构构象:腺形猎物包裹丝。
更新日期:2018-08-31
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