Keratin-associated protein 9-3 (Keratin-associated protein 9.3) (Ultrahigh sulfur keratin-associated protein 9.3)
1_MTHCC 6_ SPCCQ 11_ PTCCR 16_ TTCWQ 21_ PTTVT 26_ TCSST 31_ PCCQP 36_ SCCVS 41_ SCCQP 46_ CCHPT 51_ CCQNT 56_ CCRTT 61_ CCQPI 66_ CVTSC 71_ CQPSC 76_ CSTPC 81_ CQPTC 86_ CGSSC 91_ GQSSS 96_ CAPVY 101_ CRRTC 106_ YHPTS 111_ VCLPG 116_ CLNQS 121_ CGSNC 126_ CQPCC 131_ RPACC 136_ ETTCC 141_ RTTCF 146_ QPTCV 151_YSCCQ
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