Research Article

Full Genomic Sequences of H5N1 Highly Pathogenic Avian Influenza Virus in Human Autopsy Specimens Reveal Genetic Variability and Adaptive Changes for Growth in MDCK Cell Cultures

Table 3

Amino acid comparison with various H5 clades and maximum likelihood analysis of natural selection.

H5 virus cladeHA amino acid position1
47 (56)256 (65)2177 (181)2293 (296)2

Clade 0 ()VSGN
Clade 1 ()VSGN
Clade 2.1 ()VSGN
Clade 2.2 ()VSGN
Clade 2.3.2 ()VSGN
Clade 2.3.4 ()VSGN
Clade 2.3.4.4 ()VSGN
A/Thailand/NBL1/2006 (H5N1)-LungVSGN
A/Thailand/NBL1/2006 (H5N1)-TracheaVSGN
A/Thailand/NBL1/2006 (H5N1)-Fecal specimenVSGN
A/Thailand/NBL1/2006 (H5N1)-ColonVSGN
A/Thailand/NBL1/2006 (H5N1)–L3GRWH
A/Thailand/NBL1/2006 (H5N1)–T4VSGN
A/Thailand/NBL1/2006 (H5N1)–F5VSGN
dN-dS-3.5-2.0-4.5-5.7
dN/dS0.1250.1860.1000.073
value0.9950.9800.9980.999

Note: 1numbering based on A/Thailand/1(KAN-1)/2004 (H5N1). 2Numbering of the HA is based on H3 numbering. 3Virus isolate from lung. 4Virus isolate from trachea. 5Virus isolate from fecal specimen.