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Receptors, Adrenergic, alpha-2 MeSH Descriptor Data 2025


MeSH Heading
Receptors, Adrenergic, alpha-2
Tree Number(s)
D12.776.543.750.670.300.300.300.200
D12.776.543.750.695.150.300.300.725
D12.776.543.750.720.330.300.300.200
Unique ID
D018341
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D018341
Scope Note
A subclass of alpha-adrenergic receptors found on both presynaptic and postsynaptic membranes where they signal through Gi-Go G-PROTEINS. While postsynaptic alpha-2 receptors play a traditional role in mediating the effects of ADRENERGIC AGONISTS, the subset of alpha-2 receptors found on presynaptic membranes signal the feedback inhibition of NEUROTRANSMITTER release.
Entry Version
RECEPT ADREN ALPHA 2
Entry Term(s)
Adrenergic Receptor alpha(2C)
Adrenergic Receptor alpha(2d)
Adrenergic Receptor alpha-2C
Adrenergic Receptor alpha-2b
Adrenergic Receptor, alpha-2
Adrenergic alpha-2 Receptors
Adrenergic alpha-2A Receptors
Adrenergic alpha-2B Receptors
Adrenergic alpha-2C Receptors
Adrenergic alpha-2D Receptors
Receptor, Adrenergic, alpha-2
Receptor, Adrenergic, alpha-2A
Receptor, Adrenergic, alpha-2B
Receptor, Adrenergic, alpha-2C
Receptor, Adrenergic, alpha-2D
Receptors, Adrenergic, alpha-2A
Receptors, Adrenergic, alpha-2B
Receptors, Adrenergic, alpha-2D
Receptors, alpha-2 Adrenergic
alpha 2 Adrenergic Receptors
alpha-2 Adrenergic Receptors
alpha-2A Adrenergic Receptor
alpha-2B Adrenergic Receptor
alpha-2C Adrenergic Receptor
alpha-2D Adrenergic Receptor
Registry Numbers
0
Previous Indexing
Receptors, Adrenergic, alpha (1977-1993)
Public MeSH Note
1994; RECEPTORS, ADRENERGIC, ALPHA-2A was indexed under RECEPTORS, ADRENERGIC, ALPHA-2 1996-2010; ADRENERGIC RECEPTOR ALPHA-2B was indexed under RECEPTORS, ADRENERGIC, ALPHA-2 1997-2010; ADRENERGIC RECEPTOR ALPHA(2C) was indexed under RECEPTORS, ADRENERGIC, ALPHA-2 1995-2010; ADRENERGIC RECEPTOR ALPHA(2D) was indexed under RECEPTORS, ADRENERGIC, ALPHA-2 1997-2010
History Note
1994
Entry Combination
agonists:Adrenergic alpha-2 Receptor Agonists
antagonists & inhibitors:Adrenergic alpha-2 Receptor Antagonists
Date Established
1994/01/01
Date of Entry
1993/06/21
Revision Date
2016/06/17
Receptors, Adrenergic, alpha-2 Preferred
Receptor, Adrenergic, alpha-2C Narrower
Receptor, Adrenergic, alpha-2A Narrower
Receptor, Adrenergic, alpha-2B Narrower
Receptor, Adrenergic, alpha-2D Narrower
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