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Merck

Keratin

Keratin is the primary fibrous structural protein component of hair, skin and nails. Keratin intermediate filaments are also a cytoskeletal component of desmosome cellular junctions. Keratins are highly cross-linked proteins typically containing α-helix and β-sheet motifs and are high in glycine and alanine content. Typically keratin exists as a heterodimeric paring of Type I, low MW acidic peptides and Type II high MW, neutral or basic peptides. At least 30 different genes code for keratin proteins.

keratin
Keratin Products back to Structural Proteins
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