蛋白偶联受体家族成员超过300种，它们构成了细胞膜中最大的蛋白质家族。

With more than 300 members, the G protein-coupled receptors constitute the largest family of proteins found in the membranes of cells.

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蛋白偶联受体属于跨膜蛋白的大家族，在药物设计中起着很重要的作用。

G-protein Coupled Receptors (GPCRs) belong to one of the largest superfamilies of membrane proteins and are important targets for drug design.

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CCR5为细胞膜蛋白，属于G蛋白偶联受体家族的成员，是HIV - 1入侵机体细胞的主要辅助受体之一。

CCR5, a membrane protein on cell surface, is a member of the G protein-coupled receptor superfamily and one of the major co-receptors for HIV-1infection.

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Another family is called the G-protein coupled receptor.

另一类家族叫做G蛋白偶联受体

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