Anti-Keratin 2e antibodies enable researchers to detect and measure the Keratin 2e antigen in biological samples. This target is a reported synonym of the KRT2 gene, which encodes keratin 2. This protein is known to function in epidermis development, among other biological roles. The human version of Keratin 2e has a canonical amino acid length of 639 residues and a protein mass of 65.4 kilodaltons. It is reported to be localized in the cytoplasm of cells and notably expressed in the vagina, skin, esophagus, and cervix. Other names for this target antigen include CK-2e, K2e, and KRT2A.