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Information on beta adrenoceptors
| Subtype | beta1 | beta2 | beta3 | beta4 |
| IUPHAR Code | 2.1.ADR.B1.000.00.00 | 2.1.ADR.B2.000.* | 2.1.ADR.B3.000.* | 2.1.ADR.B4.000.* |
| Structure | 7TM h 477aa, P08588, chr. 10q24-26 r 466aa, P18090 m 466aa, P34971 |
7TM h 413aa, P07550, chr. 5q31-32, r 418aa, P10608 m 418aa, P18762 |
7TM h 408aa, P13945, cr. 8P11-12 r 400aa, P26255 m 400aa, P25962 |
none |
| Agonists | dopamine xamoterol T0509 |
salmeterol salbutamol formoterol terbutaline fenoterol |
BRL37344 CGP12177 CL316243 |
none |
| Antagonists | atenolol bisopronol betaxolol practolol CGP20712A |
ICI118551 | SR59230A | none |
| Native tissues | rat and g.pig right atria | g.pig trachea rat uterus |
rat adipose tissue rat colon |
cardic tissues - many species |
| Antagonist potency | atenolol (pA2 7.6) bisopronol (7.5) betaxolol (8.5) practolol (6.5) CGP20712A (9.6) |
ICI118551 (pA2 9.3) | ICI118551 (pKB 5.9) SR52930 (pKB 8.2-8.8) |
bupranol > CGP20712A |
| Information taken from the IUPHAR Receptor Compendium |
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