“Understanding that new mutations could arise and that a novel pathogenic coronavirus could emerge from an animal-human crossover event, the scientists began a follow-up study to deeply explore what factors make antibodies resistant to viral escape and how certain antibodies are also broadly reactive against diverse, related viruses. Using biochemical and structural analysis, deep mutational scanning, and binding experiments, they identified one antibody with unparalleled universal potency.

“This antibody, which binds to a previously unknown site on the coronavirus spike protein, appears to neutralize all known sarbecoviruses – the genus of coronaviruses that cause respiratory infections in mammals,” said Nix, who is an affiliate in Berkeley Lab’s Biosciences Area. “And, due to the unique binding site on mutation-resistant part of the virus, it may well be more difficult for a new strain to escape.”

https://scitechdaily.com/inescapable-covid-19-antibody-discovery-neutralizes-all-known-sars-cov-2-strains/