Orphan receptors

Gene symbols are those approved by the HUGO Gene Nomenclature Committee ( (Seal et al., 2011). Where the phenotype of the knockout mouse has been published, this is indicated: Further information can be obtained from the IUPHAR Database ( (Sharman et al., 2011) and the Mouse Genome Database at Mouse Genome Informatics (Eppig et al., 2012).

Approved Human Gene SymbolKnockout MousePhenotype Reported
Class A
Class B
Class C
  • a Pseudogene in most individuals.

  • b Gene absent in rats and mice.

  • c Pseudogene in man.