The PA-gene-mediated lethal dissemination and excessive innate immune response contribute to the high virulence of H5N1 avian influenza virus in mice

J Hu, Z Hu, Q Song, M Gu, X Liu, X Wang, S Hu… - Journal of …, 2013 - Am Soc Microbiol
Highly pathogenic H5N1 influenza A virus remains a substantial threat to public health. To
understand the molecular basis and host mechanism for the high virulence of H5N1 viruses …

[HTML][HTML] PB2-E627K and PA-T97I substitutions enhance polymerase activity and confer a virulent phenotype to an H6N1 avian influenza virus in mice

K Cheng, Z Yu, H Chai, W Sun, Y Xin, Q Zhang… - Virology, 2014 - Elsevier
H6N1 avian influenza viruses (AIVs) may pose a potential human risk as suggested by the
first documented naturally-acquired human H6N1 virus infection in 2013. Here, we set out to …

PA residues in the 2009 H1N1 pandemic influenza virus enhance avian influenza virus polymerase activity in mammalian cells

KA Bussey, EA Desmet, JL Mattiacio… - Journal of …, 2011 - Am Soc Microbiol
The 2009 pandemic influenza virus (pH1N1) is a swine-origin reassortant containing
human, avian, and swine influenza genes. We have previously shown that the polymerase …

[HTML][HTML] Differential contribution of PB1-F2 to the virulence of highly pathogenic H5N1 influenza A virus in mammalian and avian species

M Schmolke, B Manicassamy, L Pena, T Sutton… - PLoS …, 2011 - journals.plos.org
Highly pathogenic avian influenza A viruses (HPAIV) of the H5N1 subtype occasionally
transmit from birds to humans and can cause severe systemic infections in both hosts. PB1 …

[HTML][HTML] Comparing the functions of equine and canine influenza H3N8 virus PA-X proteins: suppression of reporter gene expression and modulation of global host …

KH Feng, M Sun, S Iketani, EC Holmes, CR Parrish - Virology, 2016 - Elsevier
The influenza PA-X protein is translated from the PA open reading frame from frameshifting
and suppresses cellular gene expression due to its ribonuclease activity. We further defined …

[HTML][HTML] Pa from a recent h9n2 (g1-like) avian influenza a virus (aiv) strain carrying lysine 367 confers altered replication efficiency and pathogenicity to …

A Mostafa, SH Mahmoud, M Shehata, C Müller… - Viruses, 2020 - mdpi.com
Egypt is a hotspot for H5-and H9-subtype avian influenza A virus (AIV) infections and co-
infections in poultry by both subtypes have been frequently reported. However, natural …

Contribution of segment 3 to the acquisition of virulence in contemporary H9N2 avian influenza viruses

AL Clements, JE Sealy, TP Peacock… - Journal of …, 2020 - Am Soc Microbiol
ABSTRACT H9N2 avian influenza viruses (AIVs) circulate in poultry throughout much of
Asia, the Middle East, and Africa. These viruses cause huge economic damage to poultry …

Critical role of the PA-X C-terminal domain of influenza A virus in its subcellular localization and shutoff activity

T Hayashi, C Chaimayo, J McGuinness… - Journal of …, 2016 - Am Soc Microbiol
ABSTRACT PA-X is a recently identified influenza virus protein that is composed of the PA N-
terminal 191 amino acids and unique C-terminal 41 or 61 residues. We and others showed …

The avian-origin PB1 gene segment facilitated replication and transmissibility of the H3N2/1968 pandemic influenza virus

I Wendel, D Rubbenstroth, J Doedt, G Kochs… - Journal of …, 2015 - Am Soc Microbiol
ABSTRACT The H2N2/1957 and H3N2/1968 pandemic influenza viruses emerged via the
exchange of genomic RNA segments between human and avian viruses. The avian …

Functional evolution of the 2009 pandemic H1N1 influenza virus NS1 and PA in humans

A Nogales, L Martinez-Sobrido, K Chiem… - Journal of …, 2018 - Am Soc Microbiol
In 2009, a pandemic H1N1 influenza A virus (IAV)(pH1N1) emerged in the human
population from swine causing a pandemic. Importantly, this virus is still circulating in …