Polymerization of G-actin by caldesmon.
Electron microscopy of negatively stained samples indicates that caldesmon induces polymerization of G-actin into filaments. Polymerization takes place in a very low ionic strength solution and is accompanied by an increase of intensity of fluorescence of G-actin labelled with N-(1-pyrenyl)iodoacetamide. The effect of caldesmon is abolished by calmodulin in the presence of Ca2+.
Gałazkiewicz
B
B
Mossakowska
M
M
Osińska
H
H
Dabrowska
R
R
D000199:Actins; D000818:Animals; D002118:Calcium / Q000494:pharmacology; D002148:Calmodulin-Binding Proteins; D010749:Phosphoprotein Phosphatases / Q000494:pharmacology*; D011108:Polymers; D011189:Potassium Chloride / Q000494:pharmacology; D011817:Rabbits
D000199:Actins; D002148:Calmodulin-Binding Proteins; D011108:Polymers; D011189:Potassium Chloride; D010749:Phosphoprotein Phosphatases; D002118:Calcium