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COVID-19 Drug Candidate Veils Viral Anchor on Human Target Cell with...

A new precision approach against coronavirus infection blocks the ACE2 receptor 'gateway' into human cells. The new strategy hinders the infection of human cells by the coronavirus SARS-CoV-2 variants and is the basis of a new drug for which a patent has already been filed. Italian scientists use a PCR-based procedure called SELEX to identify two single strand DNA molecules that specifically interact with the key residue on the human receptor protein on which the viral spike protein docks.