Beta receptor
Beta receptor
The Beta receptor (pronunciation: /ˈbeɪtə rɪˈsɛptər/) is a type of protein that responds to the hormone epinephrine (also known as adrenaline) and norepinephrine (noradrenaline). These receptors are part of the G protein-coupled receptor family and are found in various tissues throughout the body.
Etymology
The term "Beta receptor" originates from the Greek letter beta, which was used to differentiate this type of receptor from the alpha receptor in early pharmacological studies. The word "receptor" comes from the Latin "receptus", meaning "to receive", referring to the function of these proteins in receiving signals from hormones or neurotransmitters.
Types of Beta receptors
There are three known types of Beta receptors: Beta-1, Beta-2, and Beta-3. Each type has a different distribution in the body and responds to epinephrine and norepinephrine with varying degrees of sensitivity.
Related terms
- Adrenergic receptor: A type of receptor that responds to adrenaline or noradrenaline.
- G protein-coupled receptor: A large family of receptors that includes the Beta receptors.
- Epinephrine: A hormone that stimulates the Beta receptors.
- Norepinephrine: A hormone and neurotransmitter that can also stimulate the Beta receptors.
See also
External links
- Medical encyclopedia article on Beta receptor
- Wikipedia's article - Beta receptor
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