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相关概念视频

Amyloid Fibrils03:03

Amyloid Fibrils

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Amyloid fibrils are aggregates of misfolded proteins.  Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils. 
Amyloid deposits were observed as early as 1639 in the liver and the spleen.   In 1854, Rudolph Virchow performed iodine staining,...
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相关实验视频

Updated: Jul 12, 2025

High-throughput Screening for Protein-based Inheritance in S. cerevisiae
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High-throughput Screening for Protein-based Inheritance in S. cerevisiae

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人类蛋白质治疗酵母菌子

Songsong Wu1, Herman K Edskes1, Reed B Wickner1

  • 1Laboratory of Biochemistry and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD 20892-0830.

Proceedings of the National Academy of Sciences of the United States of America
|October 30, 2023
PubMed
概括
此摘要是机器生成的。

研究人员对酵母中的人类基因进行了选,以寻找抗子化合物. 他们确定了包括Bag5在内的20个基因,这些基因通过干扰子传播机制来治愈酵母子[PSI+]和[URE3].

关键词:
一个袋子5袋5袋DNAJA1 DNAJA1 的意思PRPF19 这是一个很好的方法.在 URE3 中, URE3 是氨基化物 氨基化物

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科学领域:

  • 分子生物学分子生物学
  • 生物化学 生化学
  • 遗传学 是一个遗传学.

背景情况:

  • 人类粉样性粉症越来越多地被认为是子疾病.
  • 在查抗剂的查中,Saccharomyces cerevisiae的原模型 ([PSI+]和[URE3]) 是至关重要的.
  • 酵母具有内在的反子系统,可以消除大多数新的子.

研究的目的:

  • 选一个图书馆的人类开放阅读框架的化合物,治愈酵母.
  • 识别新的反子因子并阐明它们的作用机制.

主要方法:

  • 在GAL推广下创建了一个含有14,913个人类开放阅读框架的酵母穿等离子体库.
  • 该库选了能够治愈[PSI+]和[URE3]酵母子模型的基因.
  • 研究了已识别的抗蛋白的功能领域和相互作用 (例如,PRPF19,DNAJA1,Bag5).

主要成果:

  • 鉴定出了20个人类基因,在酵母中表达时可以治愈[PSI+]或[URE3]子.
  • 在某些条件下,发现PRPF19 (E3无酸酶) 和DNAJA1 (J蛋白) 能够治愈特定的子.
  • 人体BAG5证明了[URE3]和[PSI+]的强烈治愈,其有效性取决于BAG域数量和与Hsp70s的相互作用.

结论:

  • 人类的Bag5和其他已识别的基因代表了对子疾病的潜在治疗线索.
  • 袋5介导的质固化涉及干扰Hsp70/Hsp104/Sis1陪伴机器,这对于质传播至关重要.
  • 酵母子模型是一个强大的工具,用于发现针对保存细胞通路的抗子疗法.