G-actin | definition of G-actin by Medical dictionary
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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.
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
The resulting G-actin monomers are bound by Gc-globulin, which releases gelsolin from actin.
Accurate quantitation of native Gc in serum and estimation of endogenous Gc: G-actin complexes by rocket immunoelectrophoresis.
Brownian dynamics (BD) simulations between LDH with previously built models of F-actin and G-actin
(2) were performed.
Although there is general agreement that one of the first steps in the polymerization reaction of G-actin
into F-actin filaments involves dimerization of a significant fraction of the monomer pool, evidence has been presented that this dimer - called the "lower dimer" (LD) - is in a G-like conformation and is, by itself, unable to polymerize into F-actin filaments (Millonig et al.