Keratin-associated protein 20-3
1_MSYYG 6_ NYYGG 11_ LGYGY 16_ DCKYS 21_ YTSGF 26_ GAFRI 31_ LDCGY 36_RCGCG
1: 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