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Expression, cross-linking and characterization of recombinant chitin binding resilin

机译:重组几丁质结合弹性蛋白的表达,交联和表征

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Resilin is a polymeric rubber-like protein secreted by insects to specialized cuticle regions, in areas where high resilience and low stiffness are required. Resilin binds to the cuticle polysaccharide chitin via a chitin binding domain and is further polymerized through oxidation of the tyrosine residues resulting in the formation of dityrosine bridges and assembly of a high-performance protein-carbohydrate composite material. We describe for the first time a comprehensive study on the mechanical, structural and biochemical function of chitin binding recombinant Drosophila melanogaster resilin. Various resilin constructs were cloned including the full length gene enabling Ni-NTA purification, as well as heat and salt precipitation for rapid and efficient purification. The binding isotherms and constants (K
机译:弹性蛋白(Resilin)是一种聚合的橡胶状蛋白质,被昆虫分泌到需要高回弹力和低刚度的区域中的特殊表皮区域。弹性蛋白通过甲壳质结合域与表皮多糖甲壳质结合,并通过酪氨酸残基的氧化而进一步聚合,导致二酪氨酸桥的形成和高性能蛋白质-碳水化合物复合材料的组装。我们第一次描述了几丁质结合重组果蝇果蝇resilin的机械,结构和生化功能的全面研究。克隆了多种弹性蛋白构建体,包括能够进行Ni-NTA纯化的全长基因,以及用于快速有效纯化的热和盐沉淀法。结合等温线和常数(K

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