Provided below are ELISA kits targeting aryl-hydrocarbon receptor repressor, a human protein encoded by AHRR. This protein is 701 amino acids long with a reported mass of 76.3 kDa. 3 isoforms have been identified. This is reported to be a cytoplasmic and nuclear protein. Other alias names for this protein include: ahR repressor, aryl hydrocarbon hydroxylase regulator, class E basic helix-loop-helix protein 77, dioxin receptor repressor, AHHR, and bHLHe77.