ELISA kits for the study of the target, PTRF are available in ready-to-use formats. The protein is also known as caveolae associated protein 1 or CAVIN1. It is a 390-residue protein with a cytoplasmic, nuclear, mitochondrial and membrane localization. In addition, up to 3 isoforms have been discovered. Other alias names for this target include: FKSG13, CGL4, polymerase I and transcript release factor, congenital generalized lipodystrophy 4, TTF-I interacting peptide 12, and RNA polymerase I and transcript release factor, and cavin-1. ELISA suppliers report species reactivity to the following: human, mouse, and rat.