Sigma receptors C

Unless otherwise stated all data on this page refer to the human proteins. Gene information is provided for human (Hs), mouse (Mm) and rat (Rn).

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Although termed ‘receptors’, the evidence for coupling through conventional signalling pathways is lacking. Initially described as a subtype of opioid receptors, there is only a modest pharmacological overlap and no structural convergence with the G protein-coupled receptors. A wide range of compounds, ranging from psychoactive agents to antihistamines, have been observed to bind to these sites, which appear to be intracellular.


sigma non-opioid intracellular receptor 1 C Show summary » More detailed page

σ2 C Show summary » More detailed page


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How to cite this family page

Database page citation:

Sigma receptors. Accessed on 23/11/2017. IUPHAR/BPS Guide to PHARMACOLOGY,

Concise Guide to PHARMACOLOGY citation:

Alexander SPH, Kelly E, Marrion N, Peters JA, Benson HE, Faccenda E, Pawson AJ, Sharman JL, Southan C, Buneman OP, Catterall WA, Cidlowski JA, Davenport AP, Fabbro D, Fan G, McGrath JC, Spedding M, Davies JA and CGTP Collaborators (2015) The Concise Guide to PHARMACOLOGY 2015/16: Overview. Br J Pharmacol. 172: 5729-5743.