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. 2021 Jun 1;9(6):1196. doi: 10.3390/microorganisms9061196

Table 2.

Amino acid changes identified by sanger sequencing in selected A(H1N1)pdm09 variants.

Virus Passage No. Oseltamivir (μM) IFN λ1 (ng/mL) HA * NA ** PA PB1 PB2 NP M
N09 Stock - - - - D344N, D354G - - - - -
UTR p3 3 - - - D344N, D354G ns ns ns ns ns
UTR p4 4 - - K62R, G239D, Q240R D344N, D354G ns ns ns ns ns
UTR p9 9 - - K62R, G239D, Q240R D344N, D354G V100L A1920T ° T303S - K57R
OS p7 7 640 - ns H275Y , D344N, D354G ns ns ns ns ns
OS p8 8 640 - ns H275Y , D344N, D354G ns ns ns ns ns
OS p9 9 640 - - H275Y, D344N, D354G N65K - - - K57R
λ p9 9 - 960 K62R, G239D, Q240R D344N, D354G - - I57M P318Q K57R
OS/λ p9 9 640 960 - D344N, D354G - - - - K57R
OS/λ p10 10 640 960 ns H275Y , D344N, D354G ns ns ns ns ns
OS/λ p11 11 640 960 ns H275Y , D344N, D354G ns ns ns ns ns
OS/λ p12 12 640 960 ns H275Y , D344N, D354G ns ns ns ns ns

* Based on H1 numbering as in [60]. ** Based on N1 numbering as in [61]. Present as a mixed population. ° Silent mutation, for which the nucleotide substitution is shown. ns = not sequenced.