Researchers from the University of Pittsburgh and the University of Chicago were able to control heart muscle function in a new way after discovering the previously unknown role of two enzymes in ...

The sliding filament model underlies all types of muscle contractions. Here are the three main types: Concentric Contraction: ...

A new molecular pathway has been identified that is critical for maintaining the smooth muscle tone that allows the passage of materials through the digestive system. Researchers at UMass Medical ...

Calcium's Role in Unveiling the Active Sites: In a resting muscle, the myosin-binding sites on actin are blocked by a protein complex called tropomyosin. Tropomyosin is a long, rod-shaped molecule ...

In a serendipitous discovery, UC San Diego researchers using cryo-EM technology captured the first visualizations of the 3-D structure of the muscle acetylcholine receptor in fetal and adult muscles.

Researchers at UT Southwestern Medical Center at Dallas are the first to use genetically engineered mice containing a fluorescent molecule to examine in real time the chemical reactions that result in ...

The contraction process involves interactions between actin and myosin filaments within the sarcomeres to generate force. Recent research has achieved significant advances in functional design, ...

When labor begins, the uterus must coordinate rhythmic, well-timed contractions to deliver the baby safely. While hormones such as progesterone and oxytocin are key contributors to that process, ...