UniProt Summary: Orphan receptor. Probably involved in the function of nociceptive neurons. May regulate nociceptor function and/or development, including the sensation or modulation of pain. Potently activated by enkephalins including BAM22 (bovine adrenal medulla peptide 22) and BAM (8-22)(PubMed:26582731). BAM22 is the most potent compound and evoked a large and dose-dependent release of intracellular calcium in stably transfected cells. G(alpha)q proteins are involved in the calcium-signaling pathway. Activated by the antimalarial drug, chloroquine. May mediate chloroquine- induced itch, in a histamine-independent manner. {ECO:0000269|PubMed:11850634, ECO:0000269|PubMed:20004959, ECO:0000269|PubMed:26582731}.
Pfam DomainsGO Terms
Pfam Domains
7tm 1
GO Terms
response to chloroquine
acute-phase response
acute inflammatory response
transmembrane signaling receptor activity
response to antibiotic
inflammatory response
cell surface
G protein-coupled receptor activity
response to organic cyclic compound
response to organonitrogen compound
response to drug
response to nitrogen compound
G protein-coupled receptor signaling pathway
defense response
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)