myosin
noun
my·o·sin ˈmī-ə-sən 
: a fibrous globulin of muscle that can split ATP and that reacts with actin in muscle contraction to form actomyosin
Example Sentences
Recent Examples on the Web Academic researchers discovered the roots of that condition, called hypertrophic cardiomyopathy, in genetic mutations to a protein called myosin. 
Jared S. Hopkins, WSJ, 26 July 2022 The muscles of all mammals, humans and dogs included, are made of millions of fibers of a protein called myosin. NBC News, 5 Apr. 2022 Actin and myosin, the proteins of muscles, permit those bodies to move around. The Economist, 30 Nov. 2020 Matsuno agrees that myosins are likely causing cell handedness. Tim Vernimmen, Quanta Magazine, 31 Jan. 2017 Nearly all multicellular animals, except for simple ones like sponges, depend on muscles to move, and all their muscles use some form of contracting fibers in which filaments of the proteins actin and myosin pull past one another to generate force. Quanta Magazine, 13 June 2018 Hundreds or thousands of amino acids are linked together to form proteins such as insulin, collagen, dystrophin, myosin, and the thousands of others needed for life. Sharon Begley, STAT, 1 May 2018 That means making sure the cells have myosin and actin — two proteins that are key to forming the cellular cytoskeleton, and to building muscle filaments. Noah Shachtman, WIRED, 25 Mar. 2009 See More
Jared S. Hopkins, WSJ, 26 July 2022 The muscles of all mammals, humans and dogs included, are made of millions of fibers of a protein called myosin. NBC News, 5 Apr. 2022 Actin and myosin, the proteins of muscles, permit those bodies to move around. The Economist, 30 Nov. 2020 Matsuno agrees that myosins are likely causing cell handedness. Tim Vernimmen, Quanta Magazine, 31 Jan. 2017 Nearly all multicellular animals, except for simple ones like sponges, depend on muscles to move, and all their muscles use some form of contracting fibers in which filaments of the proteins actin and myosin pull past one another to generate force. Quanta Magazine, 13 June 2018 Hundreds or thousands of amino acids are linked together to form proteins such as insulin, collagen, dystrophin, myosin, and the thousands of others needed for life. Sharon Begley, STAT, 1 May 2018 That means making sure the cells have myosin and actin — two proteins that are key to forming the cellular cytoskeleton, and to building muscle filaments. Noah Shachtman, WIRED, 25 Mar. 2009 See More Word History
Etymology
International Scientific Vocabulary my- + -ose entry 2 + -in entry 1
First Known Use
1942, in the meaning defined above
Medical Definition
myosin
noun
my·o·sin ˈmī-ə-sən
1
: actomyosin
2
: a fibrous globulin of muscle that can split ATP and that reacts with actin to form actomyosin
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