Structural insights into the substrate specificity of the endonuclease activity of the influenza virus cap-snatching mechanism

G Kumar, M Cuypers, RR Webby, TR Webb… - Nucleic acids …, 2021 - academic.oup.com
… The endonuclease resides within the N-terminal domain of the PA subunit (PA N ) of the
influenza RNA dependent RNA … The complex structures reveal that the single nucleotide

Discovery of anti-influenza nucleoside triphosphates targeting the catalytic site of A/PR/8/34/H1N1 polymerase

NS Pagadala, R Bhat, J Kumar D, A Landi - Medicinal Chemistry …, 2020 - Springer
monophosphate and acts on cellular enzyme inosine 5′-… and induce conformational
changes of PA endonuclease. … and linker domains and prevent the activity of influenza RdRp …

Structural Studies of Inhibitors with Clinically Relevant Influenza Endonuclease Variants

AJ Kohlbrand, RW Stokes, B Sankaran, SM Cohen - Biochemistry, 2024 - ACS Publications
… inhibitor targeting the influenza virus polymerase PA N-terminal endonuclease domain (PA …
This work describes the first crystal structures of BXA in complex with E23K and A36V PA N …

Targeted inhibition of the endonuclease activity of influenza polymerase acidic proteins

Y Ren, Y Chen, S Cao - Future Medicinal Chemistry, 2022 - Future Science
Domain 2 is composed of β8 and β9 and α4, α5 and α8–α12, … bonds on the nucleotide
substrate and excise the nucleotide chain. … Researchers used viral ribonucleoprotein complexes

The Influenza A Virus Replication Cycle: A Comprehensive Review

T Carter, M Iqbal - Viruses, 2024 - mdpi.com
… layer is the approximately 13,500 nucleotide (nt) viral genome, … , allowing for the endonuclease
domain to cleave capped … of importin α, thus recruiting importin β to the complex [159]. …

Structure and function of negative-strand RNA virus polymerase complexes

JD Pyle, SPJ Whelan, LM Bloyet - The Enzymes, 2021 - Elsevier
endonuclease-polymerase replication complexes, with cryo-EM and X-ray crystallographic
structures recently resolved for the polymerases of influenza … residues for nucleotide addition …

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

L Gaucherand - 2023 - search.proquest.com
Influenza A virus proteins and life cycle ...................................................... 3 1.1.3. Infection and
… Modulation of host gene expression by influenza A virus .................................... 9 1.2.1. Normal …

Structural insights into RNA polymerases of negative-sense RNA viruses

AJW Te Velthuis, JM Grimes, E Fodor - Nature Reviews Microbiology, 2021 - nature.com
influenza virus polymerases, the Endo domain and domains … that leads to formation of a
monophosphate RNA–L protein … to the structural similarity of endonucleases among sNSV …

[PDF][PDF] Direct observation of backtracking by influenza A and B polymerases upon consecutive incorporation of the nucleoside analog T1106

T Kouba, A Dubankova, P Drncova, E Donati… - Cell Reports, 2023 - cell.com
endonuclease (forest green), PA-C-terminal domain (green), PB1 (cyan), PB2-N (red),
PB2-midlink domain (magenta), PB2-cap-binding domain (… -EM structure of this product complex, …

Characterization and Inhibition of Viral Nuclease Enzymes

B Todd, G John - 2021 - era.library.ualberta.ca
… form of the FDA approved influenza endonuclease (PA) inhibitor … can excise incorporated
nucleotide analogues with … cap binding domain of PB2 between different genera of influenza (…