Deciphering the Molecular Mechanism of Action of the Influenza A Virus Endoribonuclease PA-X

L Gaucherand - 2023 - search.proquest.com
An efficient strategy for viruses to take over infected cells and evade the antiviral response is
to block host gene expression, a process termed host shutoff. Influenza A virus carries out …

[HTML][HTML] N-terminal acetylation separately promotes nuclear localization and host shutoff activity of the influenza A virus ribonuclease PA-X

RE Daly, I Myasnikov, MM Gaglia - bioRxiv, 2023 - ncbi.nlm.nih.gov
To counteract host antiviral responses, influenza A virus triggers a global reduction of
cellular gene expression, a process termed “host shutoff.” A key effector of influenza A virus …

N-terminal acetylation of the influenza ribonuclease PA-X promotes nuclear localization and host shutoff activity in a multifaceted manner

R Daly, I Myasnikov, M Gaglia - Biorxiv, 2023 - europepmc.org
To counteract host antiviral responses, influenza A virus triggers a global reduction of
cellular gene expression, a process termed “host shutoff.” A key effector of influenza A virus …

The influenza A virus endoribonuclease PA-X usurps host mRNA processing machinery to limit host gene expression

L Gaucherand, BK Porter, RE Levene, EL Price… - Cell reports, 2019 - cell.com
Many viruses shut off host gene expression to inhibit antiviral responses. Viral proteins and
host proteins required for viral replication are typically spared in this process, but the …

The cut site specificity of the influenza A virus endoribonuclease PA-X allows it to discriminate between host and viral mRNAs

L Gaucherand, A Iyer, I Gilabert, CH Rycroft, MM Gaglia - bioRxiv, 2022 - biorxiv.org
Widespread shutoff of host gene expression through RNA degradation is an advantageous
way for many viruses to block antiviral responses. However, viruses need to maintain …

Cut site preference allows influenza A virus PA-X to discriminate between host and viral mRNAs

L Gaucherand, A Iyer, I Gilabert, CH Rycroft… - Nature …, 2023 - nature.com
Many viruses block host gene expression to take over the infected cell. This process, termed
host shutoff, is thought to promote viral replication by preventing antiviral responses and …

Influenza A virus protein PA-X contributes to viral growth and suppression of the host antiviral and immune responses

T Hayashi, LA MacDonald, T Takimoto - Journal of virology, 2015 - Am Soc Microbiol
Influenza virus infection causes global inhibition of host protein synthesis in infected cells.
This host shutoff is thought to allow viruses to escape from the host antiviral response, which …

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 …

Regulation of the Influenza A Virus Host Shutoff Factor PA-X Through Hijacking Host Proteins and Pathways

RE Levene - 2021 - search.proquest.com
The influenza A endoribonuclease (RNase) PA-X regulates virulence and transmission of
the virus by suppressing host gene expression and thus inhibiting the antiviral response …

The influenza A virus host shutoff factor PA-X is rapidly turned over in a strain-specific manner

RE Levene, SD Shrestha, MM Gaglia - Journal of Virology, 2021 - Am Soc Microbiol
The influenza A endoribonuclease PA-X regulates virulence and transmission of the virus by
reducing host gene expression and thus regulating immune responses to influenza A virus …