Antagonists tend to be small molecules that bind irreversibly to the receptor preventing its normal function, while agonists may be small or large molecules (e.g. peptide or protein hormones).
抑制剂一般是小分子，他们不可逆转地结合在受体上阻碍其正常功能，而兴奋剂可以是小或大分子。
2
The researchers attached a signaling peptide known as RNAII inhibiting peptide and this naturally targets a receptor molecule on the surface of the bacteria.
研究人员把一个被称为RNAII抑制肽的信号肽附着到细菌受体分子表面的天然目标上。
3
Results showed the peptide capable of inhibiting viral attachment to the cellular receptor ultimately preventing infection.