Strosberg A D
Laboratoire d'Immuno-Pharmacologie Moléculaire, Institut Cochin de Génétique Moléculaire, Paris, France.
Protein Sci. 1993 Aug;2(8):1198-209. doi: 10.1002/pro.5560020802.
Adrenergic receptors for adrenaline and noradrenaline belong to the large multigenic family of receptors coupled to GTP-binding proteins. Three pharmacologic types have been identified: alpha 1-, alpha 2-, and beta-adrenergic receptors. Each of these has three subtypes, characterized by both structural and functional differences. The alpha 2 and beta receptors are coupled negatively and positively, respectively, to adenylyl cyclase via Gi or Gs regulatory proteins, and the alpha 1 receptors modulate phospholipase C via the Go protein. Subtype expression is regulated at the level of the gene, the mRNA, and the protein through various transcriptional and postsynthetic mechanisms. Adrenergic receptors constitute, after rhodopsin, one of the best studied models for the other receptors coupled to G proteins that are likely to display similar structural and functional properties.
肾上腺素和去甲肾上腺素的肾上腺素能受体属于与GTP结合蛋白偶联的大型多基因受体家族。已鉴定出三种药理学类型:α1-、α2-和β-肾上腺素能受体。其中每一种都有三个亚型,其特征在于结构和功能上的差异。α2和β受体分别通过Gi或Gs调节蛋白与腺苷酸环化酶负性和正性偶联,而α1受体通过Go蛋白调节磷脂酶C。亚型表达通过各种转录和合成后机制在基因、mRNA和蛋白质水平上受到调控。肾上腺素能受体是继视紫红质之后,对其他与G蛋白偶联的受体进行研究的最佳模型之一,这些受体可能具有相似的结构和功能特性。