For example, in our sinuses, there are millions of receptor proteins that detect different odor molecules by switching from an 'off state' to an 'on state.

比如，鼻窦就有几百万个检测不同气味分子的受体蛋白，可实现从‘关闭状态’到‘开启状态’的转换。

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Rice growing. Scientists have identified the bacterial signaling molecule that matches up with a specific receptor in rice plants to ward off a devastating disease known as bacterial blight of rice.

当谈到植物的天然免疫系统时，不能不提到相互作用的两个方面：植物细胞的受体分子以及与之成对的入侵细菌特异性的信号分子。

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Use of single-ligand formulations led to a reduction in viability (increased toxicity) not only in target KB cells but also in off-target cells with the targeted receptor available.

使用单配体配方不仅会导致靶向KB细胞活性的减少（增强了毒性），同时也使含有靶向受体的非靶向细胞活性降低。

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For example, a recent study by researchers at the University of Pennsylvania and the Monell Center showed that supertasters were better able to fend off bacterial sinus infections because of a particular bitter-taste receptor in their nose.

WSJ: People Who Taste Too Much