Cannabinoid Receptor II

Function

Heterotrimeric G protein-coupled receptor for endocannabinoid 2-arachidonoylglycerol mediating inhibition of adenylate cyclase. May function in inflammatory response, nociceptive transmission and bone homeostasis.

Post-translational modifications

Constitutively phosphorylated on Ser-352; phosphorylation increases cell internalization and desensitizes the receptor.

Sequence similarities

Belongs to the G-protein coupled receptor 1 family.

Tissue specificity

Preferentially 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.

Cellular localization

• Cell membrane
• Multi-pass membrane protein
• Cell projection
• Dendrite
• Perikaryon
• Localizes to apical dendrite of pyramidal neurons.

Alternative names

• Cannabinoid receptor 2
• CB-2
• CB2
• hCB2
• CX5
• CNR2
• CB2A
• CB2B

Database links

• entrezGene:1269
• omim:605051
• swissprot:P34972

Target type

Proteins

Primary research area

Neuroscience

Molecular weight

39681Da