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Table 3 Amino acid sequences analysis of the HA protein of Algerian isolates

From: Full-length genome sequences of the first H9N2 avian influenza viruses isolated in the Northeast of Algeria

Avian influenza viruses

Receptor binding Site (RBS)

Right-edge of binding pocket

Left-edge of binding pocket

Connecting peptide aa sequence

Potentials glycosylation sites (PGS)

106

110

161

163

166

191

198

202

203

234

235

148–152 a142–146

232–236 b233–237

333–338 c366–441

 

A/Quail/Hong_Kong/G1/97

V

P

W

T

S

H

E

L

Y

L

Q

S

R

A

C

S

N

D

L

Q

G

P

A

R

S

S

R

8

A/Turkey/Wisconsin/1/1966

Q

 

G

Q

  

V

 

7

A/Duck/Hong_Kong/Y280/97

N

N

T

K

G

6

A/Duck/Hong_Kong/Y439/97

Q

  

Q

  

A

N

6

A/Guangdong/MZ058/2016 *

D

N

T

M

T

G

M

S

7

A/Lebanon/11 L046/2012 (H3N2)

N

D

I

P

R

S

N

R

N

I

P

S

E

K

Q

T

12

A/Minnesota/19/2011(H1N2)

N

N

Q

E

A

S

R

Q

E

S

I

Q

9

A/Paris/650/2004 (H1N1)

N

D

Q

E

A

S

R

Q

E

S

I

Q

10

A/Egypt/N02752/2009(H5N1)

D

Q

S

S

P

G

Q

S

Q

G

E

R

R

7

A/Shanghai/02/2013(H7N9)

I

L

L

S

T

S

R

G

S

I

P

K

G

5

A/Chicken/Karachi/NARC100/2004 (H7N3)

I

K

C

R

G

S

G

I

I

Q

Q

aG

A

T

S

S

bN

G

Q

S

G

cP

k

R

R

K

R

2

A/Chicken/Morocco/SF1/2016

N

A

I

K

S

G

I

H

7

A/Chicken/Tunisia/12/2010

N

A

I

K

S

G

I

7

A/Chicken/Egypt/F12168B/2016

N

A

I

K

S

G

I

7

A/Chicken/Dubai/D2506.A/2015

 

N

A

I

K

S

G

I

H

7

A/Chicken/Pakistan/10A/2015

N

A

I

K

S

G

I

K

7

A/Chicken/B Faso/17RS93–9/2017

N

A

I

K

S

G

I

H

8

A/Chicken/Algeria/6BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/8BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/9BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/10BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/12BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria13BBD/2017

N

T

I

K

S

G

I

H

8

A/Chicken/Algeria/15BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/17BBD/2017

N

T

I

K

S

G

I

H

8

A/Chicken/Algeria/18BBD/2017

N

T

I

K

S

G

I

H

7

A/Chicken/Algeria/19BBD/2017

N

T

I

K

S

G

I

H

7

  1. Strains whose subtype is not indicated in parentheses are H9N2; * Human H9N2 viruses; Dash indicates that the amino acid is similar to that in the strain A/Quail/Hong Kong/G1/97 at the same position; H9, H7, and H5 numbering for H9N2, H7, and H5N1, respectively. a, b, c letters indicates aa respectively at positions 142–146, 233–237 and 366–441 of the right-edge of binding pocket, the left-edge of binding pocket and connecting peptide of Karachi H7N3 virus