Table 1

Distances between genes of A/California/04/2009 (H1N1) and those of the closest H1N2 isolates.

PB21

PB1

PA

HA

NP

NS3


A/swine/Indiana/P12439/2000

0.0368*2

0.0430

0.0474

0.0525

0.0360*

0.0533


A/swine/Indiana/9K035/1999

0.0406

0.0395*

0.0498

0.0513*

0.0387

0.0439


A/swine/Minnesota/55551/2000

0.0372

0.0451

0.0450*

0.1224

0.0408

0.0427*


A/swine/Illinois/100084/2001

0.0446

0.0434

0.0451

0.0597

0.0404

0.0528


A/swine/Illinois/100085A/2001

0.0453

0.0420

0.0486

0.0578

0.0404

0.0539


1 Genes: PB2, PB1 and PA, polymerase genes; HA, haemagglutinin; NP, nucleoprotein; NS, non-structural proteins 1 and 2

2 Patristic distances; nucleotide substitutions/site. The isolate that gave the shortest distance for each gene is marked with an asterisk.

3 All five NS1 genes encode a slightly truncated (219 amino acids) NS1 protein as does the NS1 gene of S-OIV.

Gibbs et al. Virology Journal 2009 6:207   doi:10.1186/1743-422X-6-207

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