Microbial production of megadalton titin yields fibers with advantageous mechanical properties.
Microbial production of megadalton titin yields fibers with advantageous mechanical properties.
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DOI:
10.1038/s41467-021-25360-6
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发表时间:
2021-08-30
影响因子:
16.6
通讯作者:
Zhang F
中科院分区:
文献类型:
--
作者:
Bowen CH;Sargent CJ;Wang A;Zhu Y;Chang X;Li J;Mu X;Galazka JM;Jun YS;Keten S;Zhang F
Manmade high-performance polymers are typically non-biodegradable and derived from petroleum feedstock through energy intensive processes involving toxic solvents and byproducts. While engineered microbes have been used for renewable production of many small molecules, direct microbial synthesis of high-performance polymeric materials remains a major challenge. Here we engineer microbial production of megadalton muscle titin polymers yielding high-performance fibers that not only recapture highly desirable properties of natural titin (i.e., high damping capacity and mechanical recovery) but also exhibit high strength, toughness, and damping energy — outperforming many synthetic and natural polymers. Structural analyses and molecular modeling suggest these properties derive from unique inter-chain crystallization of folded immunoglobulin-like domains that resists inter-chain slippage while permitting intra-chain unfolding. These fibers have potential applications in areas from biomedicine to textiles, and the developed approach, coupled with the structure-function insights, promises to accelerate further innovation in microbial production of high-performance materials. Here, the authors engineer microbial production of muscle titin fibers with highly desirable mechanical properties and provide structural analyses that explain the molecular mechanisms underlying high performance of this polymer with potential uses in biomedicine and textile industries, among others.
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影响因子:
5.5
作者:
Grubb, DT;Jelinski, LW
通讯作者:
Jelinski, LW
DOI:
10.1073/pnas.96.20.11288
发表时间:
1999-09-28
影响因子:
11.1
作者:
Carrion-Vazquez, M;Marszalek, PE;Fernandez, JM
通讯作者:
Fernandez, JM
影响因子:
64.8
作者:
Choi, Yong Jun;Lee, Sang Yup
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影响因子:
16.6
作者:
Gim, Jiseok;Schnitzer, Noah;Hovden, Robert
通讯作者:
Hovden, Robert
DOI:
10.1073/pnas.96.7.3694
发表时间:
1999-03-30
影响因子:
11.1
作者:
Carrion-Vazquez, M;Oberhauser, AF;Fernandez, JM
通讯作者:
Fernandez, JM