Alpha-keratin higher level of force before fracture. On the other hand, soft alpha-keratins, such as ones found in the skin, contain a comparatively smaller amount of disulfide bonds, making their structure more flexible. 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
The Head and the Hair in the 18–49 demographic. Liz Lemon (Tina Fey) and Jenna Maroney (Jane Krakowski) keep running into the same two men in the elevator at the 30 Rock building, and find themselves interested in them. Not knowing their names, Liz and Jenna refer to them as "The Head" (Brian McCann) and "The Hair" (Peter Hermann). After talking with Jenna, Liz decides she is going to ask "The Head" out on a date. However, on her way to find him, she runs into "The Hair", who asks her out, and discovers his name is Gray. She agrees to attend a restaurant opening