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相关概念视频

Translocation of Proteins into the Mitochondria01:19

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
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Microtubule function and architecture are regulated by an array of specialized proteins called microtubule-associated proteins or MAPs. These proteins are widespread across different organisms and have conserved protein motifs, like the multi-TOG domain for tubulin binding found in the CLASP family of MAPs. Some MAPs are lineage-specific based on their conserved domains. Their functions depend upon the cytoskeletal architecture and cell type they are located within. In-plant cells, a specific...
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Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated...
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Isolation of Intermediate Filament Proteins from Multiple Mouse Tissues to Study Aging-associated Post-translational Modifications
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FAT10通过差异稳定MYPT2异构体.

Seong Eun Song1, Yerin Kim1, Hoim Jeong1

  • 1Department of Microbiology and Immunology, Pusan National University School of Medicine, Yangsan, Republic of Korea.

Biochemical and biophysical research communications
|July 28, 2023
PubMed
概括

人类白细胞抗原F相邻转录10 (FAT10) 通过抑制其降解,稳定了氨酸酸酶向子单元2 (MYPT2) 异型f的截断形式. 这种相互作用选择性地影响MYPT2异型,可能调节肌酸酸酶活性.

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人类白细胞抗原-F相邻转录10 (FAT10)异形异形是什么意思?氨酸酸酶 (MP) 是一种氨酸酸酶向子单元2 (MYPT2) 的目标.在Ubiquitination中使用.

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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
  • 细胞生物学 细胞生物学

背景情况:

  • 肌酸酸酶 (MP) 调节肌肉收缩,在生理和病理过程中至关重要.
  • 肌酸酸酶向子单元2 (MYPT2) 通过与蛋白酸酶1c的相互作用来调节MP活性.
  • MYPT2异型体表现出功能上的差异,但它们的调节仍然不清楚.

研究的目的:

  • 研究人类白细胞抗原-F相邻转录10 (FAT10) 和MYPT2异型之间的相互作用.
  • 确定FAT10如何影响MYPT2异形a和MYPT2异形f的稳定性.
  • 通过FAT10.10阐明MYPT2异型的调节机制.

主要方法:

  • 同免疫沉试验证实了FAT10和MYPT2的相互作用.
  • 西方涂抹用于分析MYPT2异型的蛋白质水平.
  • 乌比基化试验用于评估蛋白质降解途径.

主要成果:

  • FAT10与MYPT2异型a和MYPT2异型f相互作用.
  • 脂肪10增加了MYPT2异型f的水平,但并没有增加MYPT2异型a的水平.
  • FAT10通过抑制其无处不在和随后的蛋白质体降解来稳定MYPT2异型f.

结论:

  • FAT10对MYPT2异型有不同的影响,稳定了截断的MYPT2异型f.
  • 通过FAT10调节MYPT2异型f的稳定,涉及到抑制无素-蛋白酶体通路.
  • 这些发现表明,通过FAT10对异构体特异性调节,可以通过一种新的调节机制来调节肌酸酸酶活性.