Actins D000199

Chemicals and Drugs [D] » Macromolecular Substances [D05] » Polymers » Biopolymers » Microfilament Proteins » Actins

Chemicals and Drugs [D] » Amino Acids, Peptides, and Proteins [D12] » Proteins » Contractile Proteins » Muscle Proteins » Actins

Description

Filamentous proteins that are the main constituent of the thin filaments of muscle fibers. The filaments (known also as filamentous or F-actin) can be dissociated into their globular subunits; each subunit is composed of a single polypeptide 375 amino acids long. This is known as globular or G-actin. In conjunction with MYOSINS, actin is responsible for the contraction and relaxation of muscle.   MeSH

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