348-mTORC2底物识别和Akt磷酸化机制 episode artwork

EPISODE · Dec 30, 2025 · 19 MIN

348-mTORC2底物识别和Akt磷酸化机制

from 聊聊Sci

文章主要探讨了机械靶点雷帕霉素(mTOR)激酶及其复合物mTORC2的底物识别机制。mTORC2在调节细胞生长、代谢和增殖中起着关键作用,其功能失调与衰老、糖尿病和癌症等多种疾病相关。研究人员通过使用半合成底物,如Akt-Torin偶联物,并结合低温电子显微镜(cryo-EM)和综合建模,成功解析了mTORC2与底物Akt的复合物结构。他们的发现揭示了mTORC2不像其互斥复合物mTORC1那样识别线性序列,而是通过长距离对接识别Akt的三维结构,涉及mSin1的CRIM结构域和N-mooring区域与Akt的N-lobe和C-lobe之间的相互作用,为设计选择性mTORC2抑制剂提供了结构基础。References:* Taylor M S, Chen M, Hancock M, et al. Structural basis for the recruitment and sele...去小宇宙查看完整单集简介前往小宇宙评论区与主播互动

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348-mTORC2底物识别和Akt磷酸化机制

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This episode was published on December 30, 2025.

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文章主要探讨了机械靶点雷帕霉素(mTOR)激酶及其复合物mTORC2的底物识别机制。mTORC2在调节细胞生长、代谢和增殖中起着关键作用,其功能失调与衰老、糖尿病和癌症等多种疾病相关。研究人员通过使用半合成底物,如Akt-Torin偶联物,并结合低温电子显微镜(cryo-EM)和综合建模,成功解析了mTORC2与底物Akt的复合物结构。他们的发现揭示了mTORC2不像其互斥复合物mTORC1那样识别线性序列,而是通过长距离对接识别Akt的三维结构,涉及mSin1的CRIM结构域和N-moorin...

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