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Generated recombinant viruses with their HACSs and adjacent amino acid residues
| Virus | HACSa |
|---|---|
| DkUkr63-Wt | NVPEKQT----R |
| DkUkr63-It98HACS | NVPQ--RRRKKR |
| DkUkr63-Hk220HACS | NTPQRERRRKKR |
| DkUkr63-R28HACS | NVPEIP-KRRRR |
Underlining and boldface indicate amino acid residues differing from the cleavage site and close vicinity of HA of DkUkr63-Wt and basic amino acid residues, respectively.
