Gene Information
Gene NameCNR2
OrganismHomo sapiens (Human)
Gene Length360
Protein NamesCannabinoid receptor 2 (CB-2) (CB2) (hCB2) (CX5)
Target Namecannabinoid receptor 2
Target TypeSuccessful target
Gene Age454 ( ENSG00000188822 )
Evolutionary StageEumetazoa
AlphaFoldDBP34972
Gene CardCNR2
Uniprot IDP34972
PfamPF00001
In ASDyes
Allosteric Predictionyes (1.037820531)
Ortholog in AnimalsAlpaca_ CNR2 ( ortholog_one2one )
Dog_ CNR2 ( ortholog_one2one )
GuineaPig_ CNR2 ( ortholog_one2one )
Macaque_ CNR2 ( ortholog_one2one )
Mouse_ Cnr2 ( ortholog_one2one )
Pig_ CNR2 ( ortholog_one2one )
Rat_ Cnr2 ( ortholog_one2one )
Rabbit_ CNR2 ( ortholog_one2one )
OhnologsCNR1
ParalogsS1PR1, S1PR5, S1PR2, S1PR3, S1PR4, LPAR1, LPAR2, LPAR3, MC5R, MC1R, MC2R, MC3R, MC4R, CNR1, GPR3, GPR119, GPR6, GPR12
Tissuespleen
Tissue SpecificityPreferentially expressed in cells of the immune system with higher expression in B-cells and NK cells (at protein level). Expressed in skin in suprabasal layers and hair follicles (at protein level). Highly expressed in tonsil and to a lower extent in spleen, peripheral blood mononuclear cells, and thymus. PubMed:14657172 could not detect expression in normal brain. Expressed in brain by perivascular microglial cells and dorsal root ganglion sensory neurons (at protein level). Two isoforms are produced by alternative promoter usage and differ only in the 5' UTR: isoform CB2A is observed predominantly in testis with some expression in brain, while isoform CB2B is predominant in spleen and leukocytes. {ECO:0000269|PubMed:12153574, ECO:0000269|PubMed:12511587, ECO:0000269|PubMed:14657172, ECO:0000269|PubMed:15266552, ECO:0000269|PubMed:18692962, ECO:0000269|PubMed:19496827, ECO:0000269|PubMed:7556170}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);NULL(Rat);0.04(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2KI9  (NMR  5ZTY  (X-ray  2.80A  6KPC  (X-ray  3.20A  6KPF  (EM  2.90A  6PT0  (EM  3.20A 
DBSNP rs2501432  rs2229579 
Subcellular location [CC]Cell membrane;
Multi-pass membrane protein. Cell projection, dendrite {ECO:0000250}. Perikaryon {ECO:0000250}. Note=Localizes to apical dendrite of pyramidal neurons. {ECO:0000250}.
Mouse PG classificationNA
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