Journal article

Influenza NA and PB1 gene segments interact during the formation of viral progeny: Localization of the binding region within the PB1 gene

B Gilbertson, T Zheng, M Gerber, A Printz-Schweigert, C Ong, R Marquet, C Isel, S Rockman, L Brown

Viruses | MDPI AG | Published : 2016

Abstract

The influenza A virus genome comprises eight negative-sense viral RNAs (vRNAs) that form individual ribonucleoprotein (RNP) complexes. In order to incorporate a complete set of each of these vRNAs, the virus uses a selective packaging mechanism that facilitates co-packaging of specific gene segments but whose molecular basis is still not fully understood. Recently, we used a competitive transfection model where plasmids encoding the A/Puerto Rico/8/34 (PR8) and A/Udorn/307/72 (Udorn) PB1 gene segments were competed to show that the Udorn PB1 gene segment is preferentially co-packaged into progeny virions with the Udorn NA gene segment. Here we created chimeric PB1 genes combining both Udorn ..

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