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keratin filaments. Definitions: 1. a class of intermediate filaments that form a network within epithelial cells and anchor to desmosomes, thus imparting tensile strength to the tissue. Synonyms: cytokeratin filaments. The definition information for keratin filaments is provided by Stedman's.
Alpha-keratin , or Î±-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 . Î±-keratin is a fibrous structural protein , meaning it is made up of amino acids that form a repeating secondary structure.