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Where are the myosin filaments found?
Myosin and Actin are contractile proteins that make up the sarcomeres, the contractile components of myofibrils, which make up skeletal and cardiac muscle.
What are the proteins are involved in muscle contraction?
Actin and myosin
What protein makes up the thick filaments of myofibrils?
Myosin makes up the THICK filaments, and actin makes up the thin filaments of myofibrils.
What are the thick protein filaments in the cell made of?
The thick filament is composed of the myosin molecule. The thin filament is composed of the actin molecule. Flexing the head of myosin provides the powerstroke.
What is the function of myosin?
Myosin is responsible for actin-based muscular mobility/contraction.
Myosin light-chain kinase?
is antagonized by the actions of myosin phosphatase
Binding of the myosin heads sequentially prevents what?
myosin crossbridge binding
The thick filaments of muscle fibers are composed of what?
Myosin
Which proteins found myofilaments contains the cross bridge?
The two muscle filaments are Myosin and Actin. Myosin is the thicker of the two. When a muscle contracts, a hook like particle extends off the myosin and grabs the actin pulling it in causing the contraction/ tension of the muscle
What does the release of ADP and P from the myosin head cause?
The release of ADP and P from the myosin heads causes the myosin heads to change shape.
How do proteins actin and myosin interact to make a muscle contract?
Myosin and Actin
Are myosin filaments located in an A band?
Thick - it is the length of myosin.
