MYOSIN II Meaning and
Definition
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Myosin II is a structural protein and an essential component of the contractile machinery responsible for muscle contraction and other cellular movements. It belongs to the myosin superfamily and is commonly found in muscle cells, including smooth, skeletal, and cardiac muscles.
The structure of myosin II consists of two heavy chains and four light chains arranged in a complex filamentous structure. The heavy chains form the backbone of the filament, while the light chains are involved in regulating the activity and function of the myosin II molecule.
In muscle contraction, myosin II interacts with actin, another protein filament, to generate force and movement. This interaction occurs through a cyclic process where myosin II binds to actin, undergoes a conformational change, and then releases the actin, resulting in the sliding of overlapping actin filaments. This sliding movement is what enables the contraction and relaxation of muscle fibers.
Apart from muscle contraction, myosin II is also involved in other cellular processes such as cell division, cell migration, and the movement of organelles within cells. It plays a critical role in these processes by interacting with various components of the cytoskeleton and generating the necessary force for cellular movement and shape changes.
Overall, myosin II is an essential molecular motor protein that is responsible for generating force and movement in muscles and various cellular processes. Its function and interactions contribute to the maintenance of cell structure and enable crucial physiological processes.
Common Misspellings for MYOSIN II
- nyosin ii
- kyosin ii
- jyosin ii
- mtosin ii
- mgosin ii
- mhosin ii
- muosin ii
- m7osin ii
- m6osin ii
- myisin ii
- myksin ii
- mylsin ii
- mypsin ii
- my0sin ii
- my9sin ii
- myoain ii
- myozin ii
- myoxin ii
- myodin ii
- myoein ii
Etymology of MYOSIN II
The word "myosin" comes from the Greek word "myos", meaning "muscle", and the Latin suffix "-in", which often denotes a protein. "II" indicates that it is the second type of myosin identified.
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