G-actin


Also found in: Dictionary, Thesaurus, Encyclopedia.

G-ac·tin

the globular (G) subunit of the actin molecule, having a molecular weight 42 kD; it is soluble in dilute salt, polymerizing to F-actin when the ionic strength is increased.

G-ac·tin

(akt'in)
The globular (G) subunits of the actin molecule, having a molecular weight of 57,000 and containing one molecule of adenosine triphosphate.
References in periodicals archive ?
Currently, it is not known in detail whether the binding capacity and/or affinity of Gc-globulin for G-actin is influenced by the loading with vitamin D and its metabolites.
Gc-globulin binds to monomeric G-actin, which is released by the action of gelsolin, a protein composed of 6 homologous domains (G1-G6).
vc]) covalently binds to G-actin and F-actin, and causes actin depolymerization, which leads to cell rounding (Kudryashov et al.