Keratin, type II cuticular Hb6 is a protein that in humans is encoded by the KRT86gene.[1][2][3]
The protein encoded by this gene is a member of the keratin gene family. As a type II hair keratin, it is a basic protein which heterodimerizes with type I keratins to form hair and nails. The type II hair keratins are clustered in a region of chromosome 12q13 and are grouped into two distinct subfamilies based on structure similarity. One subfamily, consisting of KRTHB1, KRTHB3, and KRTHB6, is highly related. The other less-related subfamily includes KRTHB2, KRTHB4, and KRTHB5. All hair keratins are expressed in the hair follicle; this hair keratin, as well as KRTHB1 and KRTHB3, is found primarily in the hair cortex. Mutations in this gene and KRTHB1 have been observed in patients with a rare dominant hair disease, monilethrix.[3]
References
↑Winter H, Rogers MA, Langbein L, Stevens HP, Leigh IM, Labreze C, Roul S, Taieb A, Krieg T, Schweizer J (Aug 1997). "Mutations in the hair cortex keratin hHb6 cause the inherited hair disease monilethrix". Nat Genet. 16 (4): 372–4. doi:10.1038/ng0897-372. PMID9241275.
Rogers MA, Nischt R, Korge B, et al. (1995). "Sequence data and chromosomal localization of human type I and type II hair keratin genes". Exp. Cell Res. 220 (2): 357–62. doi:10.1006/excr.1995.1326. PMID7556444.
Rogers MA, Langbein L, Praetzel S, et al. (1997). "Sequences and differential expression of three novel human type-II hair keratins". Differentiation. 61 (3): 187–94. doi:10.1046/j.1432-0436.1997.6130187.x. PMID9084137.
Winter H, Rogers MA, Gebhardt M, et al. (1998). "A new mutation in the type II hair cortex keratin hHb1 involved in the inherited hair disorder monilethrix". Hum. Genet. 101 (2): 165–9. doi:10.1007/s004390050607. PMID9402962.
Bowden PE, Hainey SD, Parker G, et al. (1998). "Characterization and chromosomal localization of human hair-specific keratin genes and comparative expression during the hair growth cycle". J. Invest. Dermatol. 110 (2): 158–64. doi:10.1046/j.1523-1747.1998.00097.x. PMID9457912.
Winter H, Clark RD, Tarras-Wahlberg C, et al. (1999). "Monilethrix: a novel mutation (Glu402Lys) in the helix termination motif and the first causative mutation (Asn114Asp) in the helix initiation motif of the type II hair keratin hHb6". J. Invest. Dermatol. 113 (2): 263–6. doi:10.1046/j.1523-1747.1999.00685.x. PMID10469314.
Korge BP, Hamm H, Jury CS, et al. (1999). "Identification of novel mutations in basic hair keratins hHb1 and hHb6 in monilethrix: implications for protein structure and clinical phenotype". J. Invest. Dermatol. 113 (4): 607–12. doi:10.1046/j.1523-1747.1999.00722.x. PMID10504448.
Pearce EG, Smith SK, Lanigan SW, Bowden PE (2000). "Two different mutations in the same codon of a type II hair keratin (hHb6) in patients with monilethrix". J. Invest. Dermatol. 113 (6): 1123–7. doi:10.1046/j.1523-1747.1999.00777.x. PMID10594761.
Rogers MA, Winter H, Langbein L, et al. (2000). "Characterization of a 300 kbp region of human DNA containing the type II hair keratin gene domain". J. Invest. Dermatol. 114 (3): 464–72. doi:10.1046/j.1523-1747.2000.00910.x. PMID10692104.