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. 2009 Nov 17;4(11):e7789. doi: 10.1371/journal.pone.0007789

Table 8. Directional selection analysis on human A(H1N1) Has.

Tree L Residue P-Value Bias Proportion (%) No. of Sites
Human I-v (100 sequences) 0.474 T 0.0002 32.995 5.4 2
R 0.0002 12.583 11.8 1
V 0.0004 34.478 4.0 2
K 0.0023 29.301 7.2 1
Human 1933∼1979 (32 strains) (egg-adapted) 0.613 D 0.0000 78.148 3.4 1
Human 1948∼1979 (17 strains) (egg-adapted) 0.091 D 0.0007 133.611 5.1 1