G-actin


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.