These C-2k ELISA kits are immunodetection tools for measuring the levels of C-2k in biological samples. C-2k is an alias of the human CDK9 gene, which encodes the protein, cyclin dependent kinase 9. Notably, C-2k is known to play a role in cell proliferation and cytokine-mediated signaling pathways, among other functions. The CDK9 protein is 372 amino acid residues in length and 42.8 kilodaltons in mass. However, as many as 2 protein isoforms have been identified. It is localized to the nucleus and cytoplasm of the cell. In terms of tissue specificity, it is ubiquitously expressed across many tissue types. This protein is known to be ubiquitinated, acetylated and phosphorylated. Other names for this target antigen include CDC2L4. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.