@flavinkins Thanks.
"The furin recognition motif present at the SARS-CoV2 S1/S2 junction has no analogy in other "linage B" beta-coronaviruses, including neither pangolin-CoV nor RaTG13 1.
@flavinkins This indicates that the S protein S1/S2 junction is not a hot spot for RNA recombination termination that depends on a pattern swapping templates (copy-choice)"
@flavinkins "These unique features of SARS-CoV-2 raise several questions concerning the proximal origin of the virus that require further discussion. "

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