Histamine receptor
From Self-sufficiency
The histamine receptors are a class of G protein-coupled receptors with histamine as their endogenous ligand.[1]
There are four known histamine receptors:
Comparison
Receptor | Mechanism | Function | Antagonists |
---|---|---|---|
H1 | Gq |
|
|
H2 | Gs ↑ Ca2+ |
|
|
H3 | Gi |
|
|
H4 | Gi |
|
There are several splice variants of H3 present in various species. Though all of the receptors are 7-transmembrane g protein coupled receptors, H1 and H2 are quite different from H3 and H4 in their activities. H1 causes an increase in PIP2 hydrolysis, H2 stimulates gastric acid secretion, and H3 mediates feedback inhibition of histamine.
References
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External links
- "Histamine Receptors". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
- Holger Stark: Histamine Receptors, BIOTREND Reviews No. 01, November 2007
- The Histamine Receptor
- MeSH Histamine+Receptor
ja:ヒスタミン受容体 pl:Receptory histaminowe
pt:Receptor de histamina- ↑ Hill SJ, Ganellin CR, Timmerman H, Schwartz JC, Shankley NP, Young JM, Schunack W, Levi R, Haas HL (1997). "International Union of Pharmacology. XIII. Classification of histamine receptors". Pharmacol. Rev. 49 (3): 253–78. PMID 9311023.
- ↑ Hofstra CL, Desai PJ, Thurmond RL, Fung-Leung WP (2003). "Histamine H4 receptor mediates chemotaxis and calcium mobilization of mast cells". J. Pharmacol. Exp. Ther. 305 (3): 1212–21. doi:10.1124/jpet.102.046581. PMID 12626656.