Related Experiment Video
Updated: Aug 18, 2026

Analysis of Actomyosin Dynamics at Local Cellular and Tissue Scales Using Time-lapse Movies of Cultured Drosophila Egg Chambers
Published on: June 3, 2019
[Age peculiarities of actomyosin enzymic properties in embryogenesis]
Abstract:
Age changes in the subunits composition were comparatively studied for protein, ATPase activity, sensitivity to Ca2+ in low concentrations and alkaline activation of ATPase of natural actomyosin of skeletal muscles and myocardium in cattle feti. A rise in values in the process of the mentioned parameters development is established for actomyosin of skeletal muscles. The rise is especially considerable by the end of embryonic development. Correspondingly the myocardium actomyosin possesses a lower ATPase activity and higher sensitivity to Ca2+ in low concentrations. The ATPase activity rises moderately with development.
More Related Videos
08:50The Mechanics of (Poro-)Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
Published on: March 10, 2023
12:35Optogenetic Inhibition of Rho1-Mediated Actomyosin Contractility Coupled with Measurement of Epithelial Tension in Drosophila Embryos
Published on: April 14, 2023
Related Concept Videos
Introduction to Actin
Overview of Myosin Structure and Function
Actin and Myosin in Muscle Contraction
The Role of Actin and Myosin in Non-muscle Cells
Actin Polymerization and Cell Motility
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate.
Role of Myosin in Cell Migration
Myosin II is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction. It is...