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Target intelligence / Profile preview
Adrenergic Beta-Receptor (βAR)
- Target
- βAR
- Molecular classification
- G protein-coupled receptor, GPCR
01
Overview
Adrenergic beta-receptors are GPCRs divided into three main subtypes (β1, β2, β3) that mediate critical cardiovascular, metabolic, and respiratory functions by transducing catecholamine signals into cellular responses through cAMP-dependent pathways. Their pharmacological modulation is central to treatment strategies across several major diseases.
- Other names
- Adrenergic beta receptorBeta-adrenergic receptorβ-adrenergic receptorBeta adrenoceptorβ-adrenoceptor
02
Mechanism of action
Agonists stimulate adenylyl cyclase via G_s protein activation, increasing cAMP levels and activating PKA. Antagonists block the receptor, preventing catecholamine binding and downstream signaling.
03
Biological functions
Signal transductionRegulation of cardiac functionRegulation of smooth muscle toneRegulation of metabolismBronchodilationLipolysisRenin release
04
Disease associations
HypertensionArrhythmiasAngina pectorisHeart failureAsthmaCOPDOveractive bladder
05
Safety considerations
BradycardiaHypotensionBronchospasmHeart block
06
Interacting drugs
Beta-blockers
2 more in the full profile.
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