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myosin ATPases
  In biochemistry, Myosin (myosin ATPases) is a Hydrolase Enzyme Reaction.

Myosin Protein Superfamily
  In our body's muscular system, Myosins are a diverse superfamily of thick microfilament proteins (muscle proteins) found in the center sections of sarcomeres, that function as translocating and share the common characteristics of being able to bind actins and hydrolyze MgATP.
In our body, Myosins, as molecular motor proteins, generally consist of heavy chains involved in locomotion, and light chains involved in regulation, within the structure of myosin heavy chain are three domains: the head, the neck and the tail.
The head region of the heavy chain contains the actin binding domain and MgATPase domain which provides energy for locomotion. The neck region is involved in binding the light-chains. The tail region provides the anchoring point that maintains the position of the heavy chain.
The superfamily of myosins is organized into structural classes based upon the type and arrangement of the subunits they contain.

Myosin Protein Subtypes
  Examples of myosin protein subtypes include:

myosin type I
myosin type II
myosin type III
myosin type IV
myosin type V

myosin heavy chains
myosin light chains
myosin subfragments
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