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
Pro Nails Pro Nails "Pro Nails" is the second single by American hip hop artist Kid Sister from her debut album "Ultraviolet" (formerly known as "Dream Date"). The song is better known for its remix, which features a verse by Kanye West. The single was originally released in 2007 and reissued in 2008. Originally a solo track, Kanye West added a guest verse to the song for his 2007 "Can't Tell Me Nothing" mixtape. West discovered the song through A-Trak, who had begun dating Kid Sister. "Pro Nails" was initially released on both 12" vinyl and via the iTunes Store on October