KRT83 explained

Keratin 83, also known as KRT83, is a protein which humans is encoded by the KRT83 gene.^{[1] [2]}

Function

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 (KRT81), KRTHB3 (KRT83, this protein), and KRTHB6 (KRT86), is highly related. The other less-related subfamily includes KRTHB2 (KRT82), KRTHB4 (KRT84), and KRTHB5 (KRT85). All hair keratins are expressed in the hair follicle; this hair keratin, as well as KRTHB1 and KRTHB6, is found primarily in the hair cortex.^[3]

Clinical significance

Mutations in the KRT83 gene have been associated with monilethrix.^[4]

Further reading

• Langbein L, Rogers MA, Winter H, etal . The catalog of human hair keratins. II. Expression of the six type II members in the hair follicle and the combined catalog of human type I and II keratins. . J. Biol. Chem. . 276 . 37 . 35123–32 . 2001 . 11445569 . 10.1074/jbc.M103305200 . free .
• Langbein L, Schweizer J . Keratins of the human hair follicle. . Int. Rev. Cytol. . International Review of Cytology . 243 . 1–78 . 2005 . 15797458 . 10.1016/S0074-7696(05)43001-6 . 9780123646477 .
• Strausberg RL, Feingold EA, Grouse LH, etal . Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. . Proc. Natl. Acad. Sci. U.S.A. . 99 . 26 . 16899–903 . 2002 . 12477932 . 10.1073/pnas.242603899 . 139241 . 2002PNAS...9916899M . free .
• Rogers MA, Winter H, Langbein L, etal . Characterization of a 300 kbp region of human DNA containing the type II hair keratin gene domain. . J. Invest. Dermatol. . 114 . 3 . 464–72 . 2000 . 10692104 . 10.1046/j.1523-1747.2000.00910.x . free .

Notes and References

1. Rogers MA, Langbein L, Praetzel S, Moll I, Krieg T, Winter H, Schweizer J . Sequences and differential expression of three novel human type-II hair keratins . Differentiation . 61 . 3 . 187–94 . February 1997 . 9084137 . 10.1046/j.1432-0436.1997.6130187.x. https://archive.today/20130105143609/http://www3.interscience.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0301-4681&date=1997&volume=61&issue=3&spage=187 . dead . 2013-01-05 .
2. Schweizer J, Bowden PE, Coulombe PA, Langbein L, Lane EB, Magin TM, Maltais L, Omary MB, Parry DA, Rogers MA, Wright MW . New consensus nomenclature for mammalian keratins . J. Cell Biol. . 174 . 2 . 169–74 . July 2006 . 16831889 . 2064177 . 10.1083/jcb.200603161 .
3. Web site: Entrez Gene: KRT83 keratin 83 .
4. van Steensel MA, Steijlen PM, Bladergroen RS, Vermeer M, van Geel M . A missense mutation in the type II hair keratin hHb3 is associated with monilethrix . J. Med. Genet. . 42 . 3 . e19 . March 2005 . 15744029 . 1736019 . 10.1136/jmg.2004.021030 .