Keratin-associated protein 21-3
1_MYFNY 6_ KSVCG 11_ SCGFG 16_ SCYGC 21_ GYGCI 26_ HSTHC 31_ GCNGY 36_ YGCYE 41_ NKYSV 46_ IDDLI 51_FFASK
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