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CK13, keratin 13, cytokeratin 13
The protein encoded by this gene is a member of the keratin gene family. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. Most of the type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. This type I cytokeratin is paired with keratin 4 and expressed in the suprabasal layers of non-cornified stratified epithelia. Mutations in this gene and keratin 4 have been associated with the autosomal dominant disorder White Sponge Nevus. The type I cytokeratins are clustered in a region of chromosome 17q21.2. Alternative splicing of this gene results in multiple transcript variants; however, not all variants have been described. [provided by RefSeq, Jul 2008] (from
Garzón et al., Granada, Spain. In Int J Urol, Jan 2016
After 7 days of ex vivo development, the epithelial layer expressed pancytokeratin, and cytokeratins CK7, CK8 and CK13, as well as filaggrin and ZO-2, with negative expression of CK4 and uroplakin III.
Sugiyama et al., Kyoto, Japan. In J Glaucoma, Dec 2015
Ectopic epithelial cells were abundantly positive for CK15, a limbal basal cell marker, but there was patchy immunostaining of CK13, a conjunctival epithelial marker, and sparse labeling with CK12, a corneal epithelial marker.
Rajagopal et al., Cambridge, United States. In Laryngoscope, Sep 2015
METHODS: Histologic sections of normal human laryngeal tissue were analyzed for morphology (hematoxylin and eosin) and immunohistochemical protein expression profile, including cytokeratins (CK13 and CK14), cornified envelope proteins (involucrin), basal cells (NGFR/p75), and proliferation markers (Ki67).
Soares et al., Bauru, Brazil. In Clin Oral Investig, Sep 2015
OBJECTIVES: The aim of this study was to investigate the relationship the expression of cytokeratins (CK10 and CK13) and the cell proliferation index determined by Ki-67 of lip squamous cell carcinoma and actinic cheilitis with different degrees of dysplasia.