Protein or the physical region of the protein that participates in chemical catalysis. In solution proteins also undergo variation in structure through thermal vibration and the collision with other molecules. Proteins can be informally divided into three main classes, which correlate with typical tertiary structures: globular proteins, fibrous proteins, and membrane proteins. Almost all globular proteins are soluble and many are enzymes. Fibrous proteins are often structural, such as collagen, the major component of connective tissue, or keratin, the protein component of hair and nails. Membrane proteins often serve as receptors or provide channels for polar or charged molecules to pass
In the Zone (The Outer Limits) in the tank with the nerve matter, and disappears, his own body now presumably permanently sped up to the point of being imperceptible to normal humans. A cured but aged Tanner and Jessica look at the "explanation" Dr. Chen left to them - his driver's license, which shows that he should have been only thirty years old. They realize he had tested the procedure on himself, causing his body to speed up and age faster. In the Zone (The Outer Limits) "In the Zone" is an episode of "The Outer Limits" television show. It was first broadcast on February 20,