Sandbox Reserved 1407

This is .

Organism of Origin

This protein originated in tarantulas, Red Junglefowls and humans.

Protein Structure

Heavy meromyosin (HMM) is a subunit of myosin. There are two fragments that make up HMM: S-1 and S-2. S-1 projects out on an angle whereas S-2 is comprised of globular heads that can bind to actin. Together, these are called a myosin cross bridge. There are four distinct macromolecules that comprise HMM, including Myosin II regulatory light chain (196 amino acids: magenta), Myosin light polypeptide 6 (150 amino acids: blue), Myosin 11; Myosin-7 (971 amino acids: gold), and Myosin 7; Myosin 11 (973 amino acids: purple).

Function

Heavy meromyosin is a part of the actin-myosin system. Heavy meromyosin (and light meromyosin) are subunits of myosin. HMM is the globular head portion of myosin which determines the rate of muscle contraction in an organism. Actin binding capacity and ATPase activity are dependent on HMM.

Significance

This is a sample scene created with SAT to by Group, and another to make of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes. These are .