Provided below are ELISA kits targeting protein phosphatase 4 regulatory subunit 4, a human protein encoded by PPP4R4. This protein is 873 amino acids long with a reported mass of 99.5 kDa. 2 isoforms have been identified. This is reported to be a cytoplasmic protein. Other alias names for this protein include: serine/threonine-protein phosphatase 4 regulatory subunit 4, HEAT-like repeat-containing protein, cilia and flagella associated protein 14, CFAP14, and HEAT-like repeat-containing protein.