NALT

Preferred term

actin

Chemical

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.

microfilament proteins

alpha-actin
alpha-isoactin
beta-actin
F-actin
G-actin
gamma-actin
isoactin
N-actin

Field 001 in MARC Authority Format

717

Spanish

actina

URI

https://lod.nal.usda.gov/nalt/3179

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Created 1/19/06, last modified 3/8/17