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一种原A:B:C型异构三聚体的计算设计
Fei Xu1, Sohail Zahid, Teresita Silva
1Department of Biochemistry, Robert Wood Johnson Medical School, UMDNJ and the Center for Advanced Biotechnology and Medicine, Piscataway, New Jersey 08854, United States.
Journal of the American Chemical Society
|September 10, 2011
概括
科学家们通过计算设计了一种新型的原蛋白异. 这一突破为蛋白质组装和纤维蛋白质设计方法的开发提供了新的见解.
科学领域:
- 生物物理学的生物物理.
- 计算生物学 计算生物学
- 蛋白质设计 蛋白质设计
背景情况:
- 原蛋白是一种具有三重螺旋结构的关键结构性蛋白质.
- 通过计算来设计特定的原结构具有挑战性.
- 了解原蛋白组合是生物材料和医学的关键.
研究的目的:
- 通过计算来设计一个稳定的原蛋白异.
- 通过实验方法验证计算设计.
- 为研究原体生物物理学提供模型系统.
主要方法:
- 自动计算设计算法.
- 算法针对能源差距和目标稳定性进行了优化.
- 用于结构分析的循环二重化谱学.
主要成果:
- 成功设计了一种A:B:C原蛋白异分离剂.
- 计算设计最大限度地提高了稳定性,并最大限度地减少了错误折叠状态.
- 循环二重化证实了所有三种酸对于三重螺旋形成的必要性.
结论:
- 自动计算设计是蛋白质工程的强大工具.
- 设计的异体化剂可以作为原组装研究的模型.
- 这项工作推进了设计纤维蛋白的一般方法.
相关概念视频
Type IV Collagen of Basal Lamina
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A type IV collagen molecule has six alpha chains which can exist in...
A type IV collagen molecule has six alpha chains which can exist in...
Fibril-associated Collagen
Fibril-associated collagens are a type of collagens present in the extracellular matrix with interrupted triple helices or FACIT (Fibril-associated collagens interrupted triple-helices). FACIT help connect and attach the collagen fibrils with each other as well as with other proteins of the extracellular matrix.
For example, the type II collagen fibrils in cartilage have covalently bound type IX fibril-associated collagens at regular intervals. Other types of fibril-associated collagens are...
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Collagens are the Major Structural Proteins of ECM
Three main types of fibers are secreted by fibroblasts: collagen fibers, elastic fibers, and reticular fibers. Collagen fiber is made from fibrous protein subunits linked together to form a long, straight fiber. Collagen fibers, while flexible, have great tensile strength, resist stretching, and give ligaments and tendons their characteristic resilience and strength. These fibers hold connective tissues together, even during the body's movement.
Connective tissue proper includes loose...
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