Ready-to-use ELISA kits are available for the detection of Prpsc, an alias of the protein, prion protein. The official gene symbol is PRNP. The protein, with a mass of 8.7 kDa and length of 73 residues, is reported to be mitochondrial. It is a member of the Prion family and may be known by other names, including: CD230, AltPrP, prion-related protein, CD230 antigen, alternative prion protein, and major prion protein, and KURU.