SARS-CoV-2, the virus responsible for COVID-19, infects cells by binding its spike protein to angiotensin-converting enzyme 2 (ACE2) receptors. Blocking this interaction with inhibitors could prevent infection. Since these inhibitors act directly on the virus without affecting human cells, they may be safer than some existing treatments. However, mutations in the spike protein can alter its structure, reducing the effectiveness of these inhibitors.
Source:
phys.org