Related Experiment Video
Updated: Aug 15, 2026

Reconstitution of Membrane-Tethered Minimal Actin Cortices on Supported Lipid Bilayers
Published on: July 12, 2022
[Superprecipitation of synthetic actomyosin after denervation]
Abstract:
Superprecipitation of synthetic actomyosin formed from intact myosin and actin extracted from rabbit white skeletal muscles after denervation was compared with that of intact synthetic actomyosin. Superprecipitation was characterized by two parameters: (1) the value of superprecipitation delta E determining an increase in the absorption from minimum to maximum values, and (2) the time required for the half-maximum increase (t1/2) which is inverse of the velocity constant. It was shown that delta E and the velocity constant decrease and t1/2 after denervation. It is assumed that this effect is related to the changes in actin structure.
More Related Videos
09:10Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
Published on: August 25, 2022
06:48Tuning the Contractility and Deformation Modes of Active Actin-Based Assemblies In Vitro: From Two-Dimensional Active Networks to Liquid Crystal Drops
Published on: July 11, 2025
Related Concept Videos
Actin and Myosin in Muscle Contraction
Muscle Contraction
Excitation-Contraction Coupling in Skeletal Muscles
When an action potential...
Relaxation of Skeletal Muscles
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open.
Motor Unit Stimulation
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
Smooth Muscle Contraction
The onset of contraction is triggered by an increase in calcium ions within the sarcoplasm, similar to the process in striated muscle. However, smooth muscles have a relatively smaller reservoir of the sarcoplasmic...