F-actin


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Related to F-actin: phalloidin, G-actin, Vinculin

F-ac·tin

(ak'tin),
the association of G-actin subunits into a fibrous (F) protein caused by an increase in salt concentration; the conversion of G-actin to F-actin is catalyzed by small concentrations of magnesium ion, is reversible, and is accompanied by the conversion of the bound ATP molecule to ADP and phosphate and the conversion of one reactive -thiol group to an unreactive form.

F-ac·tin

(ak'tin)
The association of G-actin subunits into a fibrous (F) protein.
References in periodicals archive ?
2+], gelsolin severs and caps polymeric actin filaments (F-actin) (21): after binding of domain G1 and partly domain G2 to the actin filament (F-actin), gelsolin rapidly severs F-actin and then remains bound to the barbed end of one of the newly formed filaments, forming a stable cap, thus inhibiting addition of further monomers.
Actin participates in many protein-protein interactions, including self-association of actin to form F-actin.
vc]) covalently binds to G-actin and F-actin, and causes actin depolymerization, which leads to cell rounding (Kudryashov et al.
F-actin is required for spindle anchoring and rotation in Xenopus oocytes: a reexamination of the effects of cytochalasin B on oocyte maturation.
In cirrhotic cells the level of actin polymerization was significantly lower than that of normal platelets and reflected in the level of F-actin, the polymerized form.
Crystal violet staining and fluorescent staining for CD31, f-actin and nuclei were performed according to protocols described previously (6).
Biphasic effect of danazol on human vascular endothelial cell permeability and f-actin cytoskeleton dynamics.
Focal adhesion kinase and actin regulatory/binding proteins that modulate F-actin organization at the tissue barrier; Lesson from the testis," Tissue Barriers 1(2); e24252.
He said that they have found that they had massive impairment of craniofacial skeletal development, however, this was fully restored when they added human PLS3 and the same thing happened when we added two other proteins, actinin 1 and actinin 4, F-actin proteins2 which are involved in 'bundling' or building the 'scaffolding' for cells, and it seems that these proteins can compensate for the loss of PLS3.
Table 1: Calculated Charges and Free Energies of GAPDH mutants Binding F-actin.