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Influenza B Virus recombinant nucleoprotein (IBV-rNP)

Recombinant nucleoprotein (rNP) of influenza B virus (IBV) was expressed in Saccharomyces cerevisiae and purified from yeast lysates by combination of chromatographic techniques and ultracentrifugation in CsCl density gradients under native (non-denaturing) conditions. Five different products are available.