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similarity of nowadays viruses to 1918

gsgs

Registered User
other than on the nucleotide-level,
the similarity on the amino-level seems to be quite common.

It shows that influenza-variability is limited, I remember a paper
on this discussed here some months ago.

viruses close to Brevig/1918 on the protein level:

gene:
differences in %
common aligned amino-acids
differences in amino-acids
virus

Code:
PB2:  0.69%  433  3    A/mallard/Alberta/226/1998H2N3                      
PB1:  0.27%  373  1    A/pintail/Alberta/22/1997H2N9                       
PA :  0.43%  231  1    A/Dk/South Africa/811/2004H5N1                      
NP :  1.22%  245  3    A/mallard/Alberta/47/1998H4N1


or, as another example, viruses similar to
A/Indonesia/5/2005(H5N1)
on the protein-level :

Code:
PB2: 0.37%  270  1   A/mallard/Alberta/30/1998H4N6                       
PB1: 0.39%  256  1   A/finch/Canada/NS1301/2001H3N8                      
     0.00%  250  0   A/Dk/S.Africa/1108/2004H3N8
PA : 1.67%  717  12  A/Dk/Nanchang/1749/1992H11N2                        
NP : 0.83%  240  2   A/mallard/Alberta/119/2000H4N6                      
     0.76%  263  2   A/teal/Alberta/16/1997H2N9
 
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