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.
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. PMID15081423.
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. PMID14702039.
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. PMC139241. PMID12477932.
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. PMID12015898.
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. PMID11683385.
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". Gene200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.