Keratin-associated protein 13-4
1_MSYNC 6_ CSRNF 11_ SSRSF 16_ GGYLY 21_ YPGSY 26_ PSSLV 31_ YSTAL 36_ CSPST 41_ CQLRS 46_ SLYRD 51_ CQKTC 56_ WEPAS 61_ CQKSC 66_ YRPRT 71_ SILCC 76_ PCQTT 81_ CSGSL 86_ GFRSS 91_ SCRSQ 96_ GYGSR 101_ CCYSL 106_ GNGSS 111_ GFRFL 116_ KYGGC 121_ GFPSL 126_ SYGSR 131_ FCYPN 136_ YLASG 141_ AWQSS 146_ CYRPI 151_CGSRF
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