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 Skin of a Lion "It is a novel about the wearing and the removal of masks; the shedding of skin, the transformations and translations of identity." An important aspect of the novel is its depiction of Toronto in the 1930s. Ondaatje spent many months in the archives of the City of Toronto and newspapers of the era. Prominence is given to the construction of two Toronto landmarks, the Prince Edward Viaduct, commonly known as the Bloor Street Viaduct, and the R. C. Harris Water Treatment Plant, and focuses on the lives of the immigrant workers. The plot incorporates a number of true stories of