Alpha-keratin Alpha-keratin Alpha-keratin, or α-keratin, is a type of keratin found in mammals. This protein is the primary component in hairs, horns, nails and the epidermis layer of the skin. α-keratin is a fibrous structural protein, meaning it is made up of amino acids that form a repeating secondary structure. The secondary structure of α-keratin is very similar to that of a traditional protein α-helix and forms a coiled coil. Due to its tightly wound structure, it can function as one of the strongest biological materials and has various uses in mammals, from predatory claws to hair for warmth. α-keratin is
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,