Function
Structural component of intermediate filaments in mucosal stratified squamous epithelia. Forms heteropolymers with the type II keratin KRT4, assembling into keratin intermediate filament networks that provides structural integrity and mechanical stability of the mucosal epithelium. Contributes to postnatal tongue mucosal cell homeostasis and tissue organization in response to mechanical stress, potentially through regulation of the G1/S phase cyclins CCNE1 and CCNE2.
Biological Context
Tissue Specificity: Expressed in some epidermal sweat gland ducts (at protein level) and in exocervix, esophagus and placenta
Disease Association: White sponge nevus 2 (WSN2) : A rare disorder characterized by the presence of soft, white, and spongy plaques in the oral mucosa. The characteristic histopathologic features are epithelial thickening, parakeratosis, and vacuolization of the suprabasal layer of oral epithelial keratinocytes. Less frequently the mucous membranes of the nose, esophagus, genitalia and rectum are involved. [The disease is caused by variants affecting the gene represented in this entry]
Product Specifications
Recombinant Human Keratin, type I cytoskeletal 13 (KRT13) is a recombinant protein from Homo sapiens (Human), expressed in E.coli, covering amino acids 1-458aa, with N-terminal 10xHis-tagged and C-terminal Myc-tagged tag, molecular weight 57.0kDa, purity Greater than 90% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.
