
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions β written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Keratin 2
Introduction
Keratin 2A also known as keratin 2E or keratin 2 is a protein that in humans is encoded by the KRT2A gene.[1][2]
Keratin 2A is a type II cytokeratin. It is found largely in the upper spinous layer of epidermal keratinocytes and mutations in the gene encoding this protein have been associated with ichthyosis bullosa of Siemens.[3]
References
References
- β Collin C, Moll R, Kubicka S, Ouhayoun JP, Franke WW (September 1992). “Characterization of human cytokeratin 2, an epidermal cytoskeletal protein synthesized late during differentiation”. Exp. Cell Res. 202 (1): 132β41. doi:10.1016/0014-4827(92)90412-2. PMIDΒ 1380918.
- β Smith FJ, Maingi C, Covello SP, Higgins C, Schmidt M, Lane EB, Uitto J, Leigh IM, McLean WH (November 1998). “Genomic organization and fine mapping of the keratin 2e gene (KRT2E): K2e V1 domain polymorphism and novel mutations in ichthyosis bullosa of Siemens”. J. Invest. Dermatol. 111 (5): 817β21. doi:10.1046/j.1523-1747.1998.00371.x. PMIDΒ 9804344.
- β Rothnagel JA, Traupe H, Wojcik S, Huber M, Hohl D, Pittelkow MR, Saeki H, Ishibashi Y, Roop DR (August 1994). “Mutations in the rod domain of keratin 2e in patients with ichthyosis bullosa of Siemens”. Nat. Genet. 7 (4): 485β90. doi:10.1038/ng0894-485. PMIDΒ 7524919.
Further reading
Further reading
- Whittock NV, Ashton GH, Griffiths WA, et al. (2001). “New mutations in keratin 1 that cause bullous congenital ichthyosiform erythroderma and keratin 2e that cause ichthyosis bullosa of Siemens”. Br. J. Dermatol. 145 (2): 330β5. doi:10.1046/j.1365-2133.2001.04327.x. PMIDΒ 11531804.
- Lan L, Hayes CS, Laury-Kleintop L, Gilmour SK (2005). “Suprabasal induction of ornithine decarboxylase in adult mouse skin is sufficient to activate keratinocytes”. J. Invest. Dermatol. 124 (3): 602β14. doi:10.1111/j.0022-202X.2005.23620.x. PMIDΒ 15737202.
- Takizawa Y, Akiyama M, Nagashima M, Shimizu H (2000). “A novel asparagine–>aspartic acid mutation in the rod 1A domain in keratin 2e in a Japanese family with ichthyosis bullosa of Siemens”. J. Invest. Dermatol. 114 (1): 193β5. doi:10.1046/j.1523-1747.2000.00817.x. PMIDΒ 10620137.
- Bloor BK, Tidman N, Leigh IM, et al. (2003). “Expression of Keratin K2e in Cutaneous and Oral LesionsΒ : Association with Keratinocyte Activation, Proliferation, and Keratinization”. Am. J. Pathol. 162 (3): 963β75. doi:10.1016/S0002-9440(10)63891-6. PMCΒ 1868097. PMIDΒ 12598329.
- Basarab T, Smith FJ, Jolliffe VM, et al. (1999). “Ichthyosis bullosa of Siemens: report of a family with evidence of a keratin 2e mutation, and a review of the literature”. Br. J. Dermatol. 140 (4): 689β95. doi:10.1046/j.1365-2133.1999.02772.x. PMIDΒ 10233323.
- Smith LT, Underwood RA, McLean WH (1999). “Ontogeny and regional variability of keratin 2e (K2e) in developing human fetal skin: a unique spatial and temporal pattern of keratin expression in development”. Br. J. Dermatol. 140 (4): 582β91. doi:10.1046/j.1365-2133.1999.02755.x. PMIDΒ 10233306.
- Suga Y, Arin MJ, Scott G, et al. (2000). “Hot spot mutations in keratin 2e suggest a correlation between genotype and phenotype in patients with ichthyosis bullosa of Siemens”. Exp. Dermatol. 9 (1): 11β5. doi:10.1034/j.1600-0625.2000.009001011.x. PMIDΒ 10688369.
- Nishizawa A, Toyomaki Y, Nakano A, et al. (2007). “A novel H1 domain mutation in the keratin 2 gene in a Japanese family with ichthyosis bullosa of Siemens”. Br. J. Dermatol. 156 (5): 1042β4. doi:10.1111/j.1365-2133.2007.07832.x. PMIDΒ 17408392.
- Arin MJ, Longley MA, Epstein EH, et al. (1999). “A novel mutation in the 1A domain of keratin 2e in ichthyosis bullosa of Siemens”. J. Invest. Dermatol. 112 (3): 380β2. doi:10.1046/j.1523-1747.1999.00529.x. PMIDΒ 10084318.
- Akiyama M, Tsuji-Abe Y, Yanagihara M, et al. (2005). “Ichthyosis bullosa of Siemens: its correct diagnosis facilitated by molecular genetic testing”. Br. J. Dermatol. 152 (6): 1353β6. doi:10.1111/j.1365-2133.2005.06598.x. PMIDΒ 15949009.
- Schweizer J, Bowden PE, Coulombe PA, et al. (2006). “New consensus nomenclature for mammalian keratins”. J. Cell Biol. 174 (2): 169β74. doi:10.1083/jcb.200603161. PMCΒ 2064177. PMIDΒ 16831889.
- Barbe L, Lundberg E, Oksvold P, et al. (2008). “Toward a confocal subcellular atlas of the human proteome”. Mol. Cell. Proteomics. 7 (3): 499β508. doi:10.1074/mcp.M700325-MCP200. PMIDΒ 18029348.
- Yang JM, Lee ES, Kang HJ, et al. (1998). “A glutamate to lysine mutation at the end of 2B rod domain of keratin 2e gene in ichthyosis bullosa of Siemens”. Acta Derm. Venereol. 78 (6): 417β9. doi:10.1080/000155598442683. PMIDΒ 9833038.
- Grimsby S, Jaensson H, Dubrovska A, et al. (2004). “Proteomics-based identification of proteins interacting with Smad3: SREBP-2 forms a complex with Smad3 and inhibits its transcriptional activity”. FEBS Lett. 577 (1β2): 93β100. doi:10.1016/j.febslet.2004.09.069. PMIDΒ 15527767.
- Moraru R, Cserhalmi-Friedman PB, Grossman ME, et al. (1999). “Ichthyosis bullosa of Siemens resulting from a novel missense mutation near the helix termination motif of the keratin 2e gene”. Clin. Exp. Dermatol. 24 (5): 412β5. doi:10.1046/j.1365-2230.1999.00514.x. PMIDΒ 10564334.
- Gerhard DS, Wagner L, Feingold EA, et al. (2004). “The Status, Quality, and Expansion of the NIH Full-Length cDNA Project: The Mammalian Gene Collection (MGC)”. Genome Res. 14 (10B): 2121β7. doi:10.1101/gr.2596504. PMCΒ 528928. PMIDΒ 15489334.
- Irvine AD, Smith FJ, Shum KW, et al. (2000). “A novel mutation in the 2B domain of keratin 2e causing ichthyosis bullosa of Siemens”. Clin. Exp. Dermatol. 25 (8): 648β51. doi:10.1046/j.1365-2230.2000.00728.x. PMIDΒ 11167982.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2002). “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): 16899β903. doi:10.1073/pnas.242603899. PMCΒ 139241. PMIDΒ 12477932.
- Frum R, Busby SA, Ramamoorthy M, et al. (2007). “HDM2-binding partners: interaction with translation elongation factor EF1alpha”. J. Proteome Res. 6 (4): 1410β7. doi:10.1021/pr060584p. PMCΒ 4626875. PMIDΒ 17373842.
External links
External links
- Keratin-2 at the US National Library of Medicine Medical Subject Headings (MeSH)
