Myosin

Myosin

A family of actin-dependent motor proteins. Classical myosins assemble to form bipolar filaments that bridge actin filaments. Motor activity causes sliding of the myosin along the filaments. Sliding leads to contraction of actin bundles (actin stress fibres or myofibrils). For other myosins, motor activity promotes movements of vesicles along actin filaments or other movements.

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Part of Speech: noun
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Industry/Domain: Biology
Category: Biochemistry; Molecular biology
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Related terms

myosin

Biology; Cell biology

Thick protein filaments in the center sections of sarcomeres.

myosin

Biology; General

Thick protein filaments in the center sections of sarcomeres.

myosin

Agriculture; General agriculture

Chief protein in muscle and the main constituent of the thick filaments of muscle fibers. In conjunction with actin, it is responsible for the contraction and relaxation of ...

myosin A

Medical; Health care; Medicine

A nonmuscle isoform of myosin type II found predominantly in platelets, lymphocytes, neutrophils and brush border enterocytes.

myosin B

Medical; Health care; Medicine

A nonmuscle isoform of myosin type II found predominantly in neuronal tissue.

myosin I

Medical; Health care; Medicine

A subclass of myosins found generally associated with actin-rich membrane structures such as filopodia. Members of the myosin type I family are ubiquitously expressed in ...