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Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
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使用序列和结构特征研究蛋白质-碳水化合物接口中的蛋白质聚合.

S Lekshmi1, N R Siva Shanmugam2, R Prabakaran3

  • 1Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology, Chennai 600036, India.

Biochimica et biophysica acta. Proteins and proteomics
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PubMed
概括
此摘要是机器生成的。

蛋白质中的聚合易感区域 (APR) 可以结合碳水化合物,挑战了关于它们在细胞过程中的作用的假设. 这些功能APR (fAPR) 是与疾病相关的突变的重要部位.

关键词:
聚合类的聚合.倾向于聚合的地区.碳水化合物结合蛋白质 碳水化合物结合蛋白质蛋白质聚合蛋白质的聚合.蛋白质与碳水化合物的相互作用

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科学领域:

  • 生物化学 生物化学
  • 分子生物学分子生物学
  • 结构生物学 结构生物学

背景情况:

  • 蛋白质-碳水化合物相互作用对于信号传递和免疫力等细胞功能至关重要.
  • 容易聚合的区域 (APR) 通常与蛋白质错折和疾病有关.
  • 以前的研究表明,一些聚合结合碳水化合物,促使人们对蛋白质碳水化合物复合物的APR进行调查.

研究的目的:

  • 系统地分析蛋白质碳水化合物复合物的聚合易感区域 (APR).
  • 为了确定APR是否与序列和结构层面的碳水化合物结合残留相对应.
  • 调查APR在碳水化合物结合部位的功能影响和突变场景.

主要方法:

  • 对精选的蛋白质碳水化合物复合物的分析.
  • 在蛋白质序列和结构层面检查APR.
  • 功能APR (fAPR) 的识别和描述.

主要成果:

  • 碳水化合物结合蛋白显示APR的丰富;40%的碳水化合物结合残留物容易聚合.
  • 功能APRs (fAPRs) 富含芳香残留物,可以促进碳水化合物结合.
  • 聚合倾向和碳水化合物结合亲和力在fAPR中独立调节.
  • 85%的人类fAPR含有预测为"可能致病"的突变.

结论:

  • APRs可以在功能上集成到碳水化合物结合部位,与它们与蛋白质稳定性破坏的关联相反.
  • 功能APR (fAPR) 代表聚合和碳水化合物结合交叉的关键位置.
  • fAPR是疾病相关突变的热点,为突变效应提供了洞察力.