变革的引擎:机械生物学中的非肌肉肌肉蛋白II
Marina Garrido-Casado1, Gloria Asensio-Juárez1, Vanessa C Talayero1
1Molecular Mechanisms Program, Centro de Investigación del Cáncer/ Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) and University of Salamanca, 37007 Salamanca, Spain.
Current opinion in cell biology
|March 5, 2024
概括
非肌肉肌肉蛋白II (NMII) 产生细胞内力量,这对细胞力学和适应至关重要. 准NMII为诸如心脏病等疾病提供了潜在的治疗策略.
科学领域:
- 机械生物学 机械生物学
- 细胞生物物理学 细胞生物物理学
- 分子电机分子电机
背景情况:
- 细胞力量生成对于生理过程至关重要.
- 肌酸二是负责细胞内力量的关键分子电机.
- 肌肉蛋白II的失调与各种病理有关.
研究的目的:
- 阐明非肌肉肌肉蛋白II (NMII) 在力量生成和机械生物学中的作用.
- 概述NMII驱动的力量生产的调节和分子机制.
- 探索针对NMII的治疗潜力.
主要方法:
- 审查有关NMII功能和调节的现有文献.
- 分析NMII在机械敏感事件和细胞适应中的作用.
- 检查针对NMII活动的治疗策略.
主要成果:
- NMII产生了触发机械敏感事件并形成消散结构的力量.
- 由NMII驱动的力量调节细胞形态,并启动适应的遗传程序.
- 准NMII活动是一种可行的治疗方法,如心脏病中所见.
结论:
- NMII是细胞机械生物学的核心,调节适应和环境相互作用的力量产生.
- 了解NMII机制是开发相关疾病新型治疗干预措施的关键.
相关概念视频
Role of Myosin in Cell Migration
2.3K
Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
Myosin II is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
Myosin II is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
2.3K
The Role of Actin and Myosin in Non-muscle Cells
3.5K
Actin and myosin or actomyosin filaments also play a significant role in cells other than those involved in muscle contraction (which occurs within the sarcomere of muscle cells). The mechanism of non-muscle cell contractile bundles was first observed in Dictyostelium and Acanthamoeba. In non-muscle cells, two bundles are commonly found: stress fibers and actomyosin adherence belts. These contractile bundles are smaller and less organized than the ones found in muscle cells. They are held...
3.5K
Overview of Myosin Structure and Function
4.3K
Myosins are a family of molecular motor proteins, first identified in the skeletal muscles, where they are responsible for muscle contraction. Along with their role in muscle contraction, these proteins also play a role in the intracellular transport of molecules and vesicles. There are twenty-four classes of myosins based on their domain sequence and organization. Of the twenty-four, six classes (Myosin I, Myosin II, Myosin V, Myosin VI, Myosin VII, and Myosin X) have been well...
4.3K
Mechanical Protein Functions
4.9K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
4.9K
Actin and Myosin in Muscle Contraction
11.1K
Actin and myosin are contractile proteins that form the sarcomere found in skeletal muscle tissues for regulating muscle contraction. Actin, a globular contractile protein, interacts with myosin for muscle contraction. The skeletal tissue appears striped or striated under a microscope due to the repeated arrangement of contractile proteins actin and myosin along the length of myofibrils. Dark A bands and light I bands repeat along myofibrils, and the alignment of myofibrils in the cell causes...
11.1K
Cross-bridge Cycle
117.4K
As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
117.4K


