iDrugBank

Actins

MESHD000199

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.

Synonyms

  • Actin
  • alpha-Actin
  • alpha Actin
  • alpha-Isoactin
  • alpha Isoactin
  • beta-Actin
  • beta Actin
  • G-Actin
  • G Actin
  • gamma-Actin
  • gamma Actin
  • Isoactin
  • N-Actin
  • N Actin
  • F-Actin
  • F Actin

Source last updated 2026-05-24T15:28:24.502Z