Ready-to-use ELISA kits are available for the detection of Pyk1, an alias of the protein, tyrosine kinase non receptor 2. The official gene symbol is TNK2. The kits can detect several species variants of the protein, including: human, mouse, rat, chicken, primate, guinea pig, and other mammalian. The protein, with a mass of 114.6 kDa and length of 1038 residues, is reported to be cytoplasmic, nuclear and membrane-associated. It is a member of the Protein kinase superfamily, Tyr protein kinase family and may be known by other names, including: ACK1, ACK-1, tyrosine kinase non-receptor protein 2, activated p21cdc42Hs kinase, activated Cdc42-associated kinase 1, and activated CDC42 kinase 1.