In the hair cortex, hair keratin intermediate filaments are embedded in an interfilamentous matrix, consisting of hair keratin-associated proteins (KRTAP), which are essential for the formation of a rigid and resistant hair shaft through their extensive disulfide bond cross-linking with abundant cysteine residues of hair keratins. The matrix proteins include the high-sulfur and high-glycine-tyrosine keratins.

Belongs to the KRTAP type 7 family.

87 amino acids

MTRYFCCGSYFPGYPIYGTNFHGTFRATPLNCVVPLGSPLNYGCGCNGYSSLGYSFGGSNINNLGGCYGGSFYRPWGSGSGFGYSTY

9.3 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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