FIELD: biotechnology.
SUBSTANCE: invention relates to the field of biotechnology, in particular to a heavy-chain antibody or its antigen-binding fragment, which specifically binds to S-protein of SARS-CoV-2 virus.
EFFECT: invention is effective for inhibition of binding of S-protein of SARS-CoV-2 virus and ACE2 cell receptor.
3 cl, 3 dwg, 1 ex
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