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Keratin 23 (histone deacetylase inducible)
Symbols KRT23 ; CK23; HAIK1; K23
External IDs OMIM606194 MGI2148866 HomoloGene9172 GeneCards: KRT23 Gene
RNA expression pattern
PBB GE KRT23 218963 s at tn.png
More reference expression data
Species Human Mouse
Entrez 25984 94179
Ensembl ENSG00000108244 ENSMUSG00000006777
UniProt Q9C075 Q99PS0
RefSeq (mRNA) NM_001282433 NM_033373
RefSeq (protein) NP_001269362 NP_203537
Location (UCSC) Chr 17:
39.08 – 39.09 Mb
Chr 11:
99.48 – 99.49 Mb
PubMed search [1] [2]

Keratin, type I cytoskeletal 23 is a protein that in humans is encoded by the KRT23 gene.[1][2][3]

The protein encoded by this gene is a member of the keratin family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. The type I cytokeratin genes are clustered in a region of chromosome 17q12-q21.[3]


  1. ^ Zhang JS, Wang L, Huang H, Nelson M, Smith DI (Jan 2001). "Keratin 23 (K23), a novel acidic keratin, is highly induced by histone deacetylase inhibitors during differentiation of pancreatic cancer cells". Genes Chromosomes Cancer 30 (2): 123–35. doi:10.1002/1098-2264(2000)9999:9999<::AID-GCC1070>3.0.CO;2-W. PMID 11135429. 
  2. ^ Schweizer J, Bowden PE, Coulombe PA, Langbein L, Lane EB, Magin TM, Maltais L, Omary MB, Parry DA, Rogers MA, Wright MW (Jul 2006). "New consensus nomenclature for mammalian keratins". J Cell Biol 174 (2): 169–74. doi:10.1083/jcb.200603161. PMC 2064177. PMID 16831889. 
  3. ^ a b "Entrez Gene: KRT23 keratin 23 (histone deacetylase inducible)". 

Further reading[edit]

  • Suzuki A, Ji G, Numabe Y et al. (2004). "Single nucleotide polymorphisms associated with aggressive periodontitis and severe chronic periodontitis in Japanese". Biochem. Biophys. Res. Commun. 317 (3): 887–92. doi:10.1016/j.bbrc.2004.03.126. PMID 15081423. 
  • Ota T, Suzuki Y, Nishikawa T et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039. 
  • Strausberg RL, Feingold EA, Grouse LH et al. (2003). "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. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932. 
  • Tolstonog GV, Sabasch M, Traub P (2002). "Cytoplasmic intermediate filaments are stably associated with nuclear matrices and potentially modulate their DNA-binding function". DNA Cell Biol. 21 (3): 213–39. doi:10.1089/10445490252925459. PMID 12015898. 
  • Hesse M, Magin TM, Weber K (2002). "Genes for intermediate filament proteins and the draft sequence of the human genome: novel keratin genes and a surprisingly high number of pseudogenes related to keratin genes 8 and 18". J. Cell. Sci. 114 (Pt 14): 2569–75. PMID 11683385. 
  • Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K et al. (1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149. 
  • Maruyama K, Sugano S (1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.