Aryl Hydrocarbon Receptor Repressor

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Aryl hydrocarbon receptor repressor (701 aa, ~76 kDa) is encoded by the human AHRR gene. This protein plays a role in the downregulation of aryl hydrocarbon receptor responsive gene expression and the cellular response to polycyclic aromatic hydrocarbons, including dioxin.

**Synonyms:** - AHRR - AhRR - Aryl Hydrocarbon Hydroxylase Regulator - Aryl Hydrocarbon Receptor Regulator - Aryl-Hydrocarbon Receptor Repressor - Arylhydrocarbon Receptor Repressor - Class E Basic Helix-Loop-Helix Protein 77 - Dioxin Receptor Repressor - bHLHe77