Biomimetic spinning of artificial spider silk from a chimeric minispidroin

Biomimetic spinning of artificial spider silk from a chimeric minispidroin
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从嵌合小蜘蛛中仿生纺制人造蜘蛛丝

DOI:
10.1038/nchembio.2269
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发表时间:
2017-03-01
影响因子:
14.8
通讯作者:
Rising, Anna
Rising, Anna
中科院分区:
生物学1区
文献类型:
--
作者:
Andersson, Marlene;Jia, Qiupin;Rising, Anna

文献摘要

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在此,我们提出了一种嵌合重组蜘蛛丝蛋白(蜘蛛丝蛋白),其水溶性与天然蜘蛛丝原液的溶解度相同,以及一种仅基于水性缓冲液、剪切力和降低的 pH 值的纺丝装置。该过程概括了决定天然蜘蛛丝纺丝的复杂分子机制,并且效率很高;一升细菌摇瓶培养物中的蜘蛛蛋白足以纺出一公里迄今为止最坚韧的人造蜘蛛丝纤维。
Herein we present a chimeric recombinant spider silk protein (spidroin) whose aqueous solubility equals that of native spider silk dope and a spinning device that is based solely on aqueous buffers, shear forces and lowered pH. The process recapitulates the complex molecular mechanisms that dictate native spider silk spinning and is highly efficient; spidroin from one liter of bacterial shake-flask culture is enough to spin a kilometer of the hitherto toughest as-spun artificial spider silk fiber.