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受体亚型及其大分子的多样性使药理学家们困惑不已。首先,仅基于药理学的受体分类方法并不能使人满意,它只能部分解决受体的分子多样性问题;其次,一种内源性配体可以特异性活化多种受体亚型,而这些受体亚型在生理上的反映仍不清楚。本文以生物胺-G蛋白偶联受体为例,说明如果考虑受体的进化历史,就可以更好地理解受体的药理特性和分子特性间显著的不同。
The diversity of receptor subtypes and their macromolecules has puzzled pharmacologists. First of all, the pharmacological-based method of receptor-based classification alone is not satisfactory. It can only partially solve the molecular diversity of the receptor. Second, an endogenous ligand can specifically activate a variety of receptor subtypes, Physiological responses to these receptor subtypes remain unclear. In this paper, biogenic amine-G protein-coupled receptors, for example, illustrate that a significant difference between the pharmacological and molecular properties of a receptor can be better understood if one considers the evolutionary history of the receptor.