myosin

简明释义

英[ˈmaɪə(ʊ)sɪn]美[ˈmaɪəsɪn]

n. （生化）肌浆球蛋白；肌球蛋白，肌凝蛋白

英英释义

单词用法

同义词

反义词

例句

1.The results showed that coincident with the increases in myocardial fiber diameter on 9 days after MI, both myosin ATPase activity and V_1 isoenzyme amount were depressed.

结果表明，MI后第9天，在心肌细胞直径增大的同时，肌球蛋白atp酶活性下降，同功酶v_1含量下降。至MI后第21天，上述这种变化更加明显。

2.Method: Cardiac myosin was isolated and purified from fresh pig heart.

方法：从新鲜猪心中分离提纯心肌肌凝蛋白。

3.Objectives: To study the changes of ventricular myosin light chain (VMLC) gene transcription in rheumatic heart disease (RHD).

目的：研究风湿性心脏病(风心病)心衰时心室肌中肌球蛋白轻链(VMLC)的变化。

4.Aim: To detect effect of the different frequency of chronic electrical stimulation (CES) on myofibrillar isoform, myosin heavy chain (MHC) and metabolic enzyme activities.

目的：探讨不同频率慢性电刺激对膈肌肌纤维亚型、肌球蛋白重链(mhc)亚型和代谢酶活性的适应性变化的影响。

5.A muscle is a very large number of fibers close together, containing two different substances myosin and actomyosin.

肌肉是由极多的彼此紧帖的纤维所组成的，它含有两种不同的物质：肌球蛋白和肌动球蛋白。

6.One that churns out actin and myosin, which link up to form units that can expand and contract, will become a muscle cell. And so on.

而那种大量炮制肌动蛋白和肌凝蛋白的细胞，连接在一起从而形成可扩展及缩小的单元，这种细胞将成为肌肉细胞。如此类推。

7.The distribution of EOMs fibers and the expression of actin and myosin might play important roles in the mechanism of comtant strabismus;

眼外肌纤维减少和收缩蛋白表达减弱在共同性斜视的发病中可能起重要作用；

8.The contraction of muscle fibers is primarily driven by the interaction between actin and myosin.

肌肉纤维的收缩主要是由肌动蛋白和肌球蛋白之间的相互作用驱动的。

9.In the sliding filament theory, myosin plays a key role in muscle movement.

在滑动丝理论中，肌球蛋白在肌肉运动中起着关键作用。

10.Researchers are studying how myosin mutations can lead to various muscular diseases.

研究人员正在研究如何肌球蛋白突变导致各种肌肉疾病。

11.During muscle contraction, myosin heads attach to actin filaments to pull them inward.

在肌肉收缩过程中，肌球蛋白头部附着到肌动蛋白丝上，将其向内拉动。

12.The ATPase activity of myosin is essential for muscle relaxation.

肌球蛋白的ATP酶活性对肌肉放松至关重要。

作文

Myosin is a type of protein that plays a crucial role in muscle contraction and movement. It is a motor protein that interacts with actin, another protein that forms the cytoskeleton of cells. The relationship between myosin (肌球蛋白) and actin is fundamental to the process of muscle contraction. When a muscle contracts, myosin heads attach to actin filaments, pulling them closer together and thus shortening the muscle fiber. This interaction is powered by ATP, the energy currency of the cell, which provides the necessary energy for myosin to perform its function. The structure of myosin is quite complex. It consists of a long tail and a head region that can bind to actin. The head region contains the active site where ATP binds, and it is this part of the myosin molecule that interacts directly with actin during contraction. There are several types of myosin proteins, each adapted for specific functions in different types of cells. For example, myosin II is primarily involved in muscle contraction, while myosin V is important for transporting cellular cargo along actin filaments. In addition to muscle cells, myosin is also found in other types of cells, where it plays roles in processes such as cell division and intracellular transport. During cell division, myosin helps to form the contractile ring that separates the two daughter cells. In neurons, myosin is involved in transporting vesicles containing neurotransmitters to the synapse, ensuring proper communication between nerve cells. Research on myosin has significant implications for understanding various diseases. For instance, mutations in the myosin genes can lead to muscle disorders such as hypertrophic cardiomyopathy, a condition characterized by abnormal thickening of the heart muscle. Understanding how myosin functions at a molecular level can provide insights into these conditions and potentially lead to new therapeutic strategies. Moreover, the study of myosin has broader implications in the field of bioengineering. Scientists are exploring ways to harness the power of myosin for applications in robotics and artificial muscles. By mimicking the mechanisms of myosin, researchers hope to create devices that can replicate the movements of biological systems, leading to advancements in prosthetics and soft robotics. In conclusion, myosin (肌球蛋白) is not just a simple protein; it is a vital component of life that facilitates movement at both the cellular and organismal levels. Its intricate structure and diverse functions highlight the complexity of biological systems. As we continue to explore the roles of myosin in health and disease, we open doors to new discoveries that could enhance our understanding of biology and improve medical treatments.