Myosin is what kind of protein

Myosin 6 MYO6. Myosin 19 MYO Type A MYH9. MYH9 Hearing loss Thrombocytopenia. Type B MYH Myosin 7A Myosin 14 Myosin Myosin 5A. Also see Fiber type disorders Myosin disorders. Myosin is one of three major classes of molecular motor proteins: myosin, dynein, and kinesin. As the most abundant of these proteins myosin plays a structural and enzymatic role in muscle contraction and intracellular motility. Myosin was first discovered in muscle in the 19th century.

Thus most are located in muscle cells. Composed of head, neck and tail domains. Head domain binds the actin and moves along it. The neck is a linker and binds the light chains which have a regulatory function. The tail interacts with cargo molecules CBD m.

There are 18 classes of myosin. Unconventional myosin are thought not to form filaments [2]. See also Myosin hebrew. Myosin is found in abundance, therefore it can be prepared in gram quantities. The process modified the protein by reductive methylation. X-ray data was used to determine the tertiary structure of the protein.

Myosin has a molecular size of approximately kilodaltons with a total of six subunits. It has two kD heavy chains which make the majority of the overall structure and two pairs of light chains which vary in size. Each heavy chains composes the bulk of one of the globular heads. Sub-fragment-1 S1 also termed the myosin head consists of ATP, actin, and two light chain binding sites. Each globular head has a heavy chain and two light chains for a combined molecular size of about kD. The myosin head is asymmetrical with a length of Angstroms and 65 Angstroms in width, with a total thickness of about 40 Angstroms.

This particular helix forms the light chain binding region of the globular domain [9] The amino terminus of each heavy chain has a large globular domain containing the site of ATP hydrolysis.