Keratin Keratin Keratin () is one of a family of fibrous structural proteins. It is the key structural material making up hair, horns, claws, hooves, and the outer layer of human skin. Keratin is also the protein that protects epithelial cells from damage or stress. Keratin is extremely insoluble in water and organic solvents. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and form strong unmineralized epidermal appendages found in reptiles, birds, amphibians, and mammals. The only other biological matter known to approximate the toughness of keratinized tissue is chitin. Keratin derives from Greek ' from '
In the Name of the Brother extraordinary things discovered in the real world are likely to be "studied to death." The name of the character Greg Mendell is similar to that of Gregor Mendel, who is known as the father of modern genetics. It is not known if this reference is deliberate, or what its significance is. Mendell acknowledges that it is against the law to text while driving in Maine, accurately reflecting a state law that went into effect on September 26, 2011. This episode was at the time the lowest rated in the series' run, with a 2.4/6 among 18-49s and only 7.68 million