These OTK4 ELISA kits are immunodetection tools for measuring the levels of OTK4 in biological samples. OTK4 is an alias of the human FKBP1B gene, which encodes the protein, FKBP prolyl isomerase 1B. Notably, OTK4 is known to play a role in carbohydrate metabolism and homeostasis, among other functions. The FKBP1B protein is 108 amino acid residues in length and 11.8 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the cytoplasm of the cell. In terms of tissue specificity, it is notably expressed in heart muscle. Other names for this target antigen include FKBP12.6 and FKBP1L. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.