Table 4.
Enzymatic properties of the neuraminidases of 275H and 275Y H1N1 virusesa
| Virus strainb |
NA (275)
|
Km (μM)
|
Vmax (OD)
|
|||
|---|---|---|---|---|---|---|
| HK/02022/2008 | — | H | — | 16.99 | — | 0.421 |
| HK/03138/2008 | 40.66 | 0.394 | ||||
| HK/04633/2008 | 20.68 | 0.472 | ||||
| HK/16418/2009 | Y | 68.19 | 0.243 | |||
| HK/17270/2009 | 61.96 | 1.843 | ||||
| HK/17566/2009 | 59.05 | 0.719 |
Note.
a
Enzymatic properties of neuraminidases, indicated by Km and Vmax values, were estimated as described in the materials and methods.
b
Three H1N1 strains of each NA genotype (275H or 275Y) were analyzed in this study.