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Table 4 Comparison of the deduced amino acid sequence of M2 of the A/chicken/Egypt/BSU-CU/2011 with other influenza A viruses

From: Isolation and mutation trend analysis of influenza A virus subtype H9N2 in Egypt

M2 Residue

Aviana

Humana

2009 H1N1 Pandemic strain

Egyptian H5N1

A/ck/Eg/BSU-CU/11

Egypt H9N2 2006b

Middle East H9N2c

10

P

P

P

P

L

P

L87/P3

11

T

I

T

T

T

T

T89/S1

13

N

N

S

N

S

N

N90

14

G

E

E

E

E

G

G57/E30/A3

16

E

G

E

E

G

E

G84/E3/D3

18

K

R

R

R

R

K

R88/K3

20

S

N

S

S

S

S

S83/N6/G1

  1. aAvian and human amino acid residues allocated by de Filette et al. [38].
  2. bA/avian/Egypt/920431/2006(H9N2)) is GenBank available data. The strain isolated from live bird market in Egypt (unpublished report).
  3. cAll available H9N2 sequences from the Middle East. The available H9N2 sequences include strains from Emirates, Iran, Israel, Jordan, Lebanon, Saudi Arabia and Tunisia found in the Flu database.
  4. Numerical superscripts refer to the number of strains that possess those residues.