There are a number of ELISA Kits available for the measurement of TRPMb, another term for the human protein, clusterin. Other synonyms may include: aging-associated protein 4, apolipoprotein J, complement cytolysis inhibitor, complement lysis inhibitor, ku70-binding protein 1, sulfated glycoprotein 2, and testosterone-repressed prostate message 2. It is encoded by the CLU gene to yield a protein 449 amino acids in length and 52.5 kDa in size. However, there are up to 6 reported isoforms. The protein is categorized into the Clusterin family. Versions of TRPMb are present in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.