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. 2018 May 16;7:85. doi: 10.1038/s41426-018-0088-z

Table 3.

Amino acid substitutions in the novel H1N1 and H3N2 reassortant isolates compared with human isolates

Lineage/subtype Host Virus No. of glycosylation sites in HA HAa PB2 M2 NAc
138 190 225 226 228 271 590 591 627 701 31 274
EA H1N1 Human A/Hunan/42443/2015 7 A D E Q G A G R E D N Y
EA H1N1 Swineb Sw/GX/NNXD2023/2013 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/QZ5/2014 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/LZA3/2015 6 * * * * * * N * * * * *
EA H1N1 Swineb Sw/GX/NN1994/2013 7 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/CZ7/2014 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/LB9/2014 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/BS30/2014 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/NNLX/2014 6 * * * * * * S * * * * *
EA H1N1 Swineb Sw/GX/BB2/2013 6 * * * * * T * Q * N * *
EA H1N1 Swineb Sw/GX/GG6/2013 6 * * * * * T * Q * N * *
Early H1N1 Avian A/duck/Schleswig/21/1979 6 * E G * * T * Q * * S *
Pandemic H1N1 Swineb Sw/GX/DX24/2013 6 * * D * * * S * * * * *
Pandemic H1N1 Human A/California/04/2009 6 * * D * * * S * * * * *
HL H3N2 Swineb Sw/GX/NNXD/2013 6 S * D I S * S * * * * H
HL H3N2 Swineb Sw/GX/JGB4/2013 6 S * D I S * S * * * * H
HL H3N2 Swineb Sw/GX/JG1/2014 6 S * D I S * S * * * * H

*indicated the identical amino acids with A/Hunan/42443/2015; Sw represents swine, GX represents Guangxi

aH3 numbering

bisolates in this study

cN2 numbering