Previous research has shown that the spike (S) protein of -CoV-2 binds to a host cell receptor, facilitating viral entry. Research has also shown that SARS-CoV-2 variants that lose the furin cleavage site at the spike protein (S gene mutants) emerge rapidly during propagation in Vero cells (lineage of cells used in cell cultures).
from Medical Xpress - latest medical and health news stories
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