When the ligand is present it binds to the receptor outside the cell and it activates this G-protein.

当配体存在并与细胞表面的受体结合时,就会激活G蛋白

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It's called the G-protein coupled receptor because it's a receptor, like the one shown here, that's coupled to a special molecule called a G-protein.

之所以叫这个名字是因为这种受体,就像这里展示的一样,是与一种叫做G蛋白的特殊分子偶联的

耶鲁公开课 - 生物医学工程探索课程节选

The G-protein then goes on to create some other biochemical changes inside the cell.

然后G蛋白在细胞内,诱发其它的一些生化反应

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It can also happen in other ways, it could be a G-protein coupled receptor which we talked about last time, which indirectly activates another ion channel to start the electrical signal.

还可以有其他方式,可以通过G蛋白偶联受体,这我们上次谈过,它可以间接激活,另一个离子通道以开启电信号

耶鲁公开课 - 生物医学工程探索课程节选

Another family is called the G-protein coupled receptor.

另一类家族叫做G蛋白偶联受体

耶鲁公开课 - 生物医学工程探索课程节选