Anti-Esk antibodies enable researchers to detect and measure the Esk antigen in biological samples. This target is a reported synonym of the TTK gene, which encodes TTK protein kinase. This protein is known to function in peptidyl-serine phosphorylation and the regulation of cell proliferation, among other biological roles. The human version of Esk has a canonical amino acid length of 857 residues and a protein mass of 97.1 kilodaltons, although 2 isoforms have been identified. It is reported to be widely expressed in many tissue types. Other names for this target antigen include CT96 and MPH1. Western Blot is the most common application for the Esk antibodies listed below. ELISA and Immunohistochemistry are also common applications.