These p15 INK4b ELISA kits are immunodetection tools for measuring the levels of p15 INK4b in biological samples. p15 INK4b is an alias of the human CDKN2B gene, which encodes the protein, cyclin dependent kinase inhibitor 2B. Notably, p15 INK4b is known to play a role in pathways of aging and the cell cycle, among other functions. The CDKN2B protein is 138 amino acid residues in length and 14.7 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the cytoplasm of the cell. Other names for this target antigen include CDK4I, INK4B, and MTS2. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.