These p21 Protein (Cdc42/Rac)-activated Kinase 4 ELISA kits are immunodetection tools for measuring specific protein levels in biological samples. p21 Protein (Cdc42/Rac)-activated Kinase 4 is an alias of the human PAK4 gene, which encodes the protein, p21 (RAC1) activated kinase 4. Notably, p21 Protein (Cdc42/Rac)-activated Kinase 4 is known to play a role in the apoptotic pathway and the cell cycle, among other functions. The PAK4 protein is 591 amino acid residues in length and 64.1 kilodaltons in mass. However, as many as 4 protein isoforms have been identified. It is localized to the cytoplasm of the cell. In terms of tissue specificity, it is reported be highly expressed in prostate, testis and colon. This protein is known to be methylated, ubiquitinated and phosphorylated. Other names for this target antigen include serine/threonine-protein kinase PAK 4 and p21 protein (Cdc42/Rac)-activated kinase 4. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.