Discovery of highly potent inhibitors targeting the predominant drug-resistant S31N mutant of the influenza A virus M2 proton channel

F Li, C Ma, WF DeGrado, J Wang - Journal of medicinal chemistry, 2016 - ACS Publications
… encoded by the current circulating influenza A viruses; thus, … a series of S31N inhibitors with
the general structure of … p7 ion channel, the HIV Vpu ion channel, M2 from the influenza virus…

Discovery of M2 channel blockers targeting the drug-resistant double mutants M2-S31N/L26I and M2-S31N/V27A from the influenza A viruses

R Musharrafieh, C Ma, J Wang - European Journal of Pharmaceutical …, 2020 - Elsevier
… of activity of S31N inhibitors to S31N/V27A and S31N/L26I as … developed to inhibit the single
M2-S31N mutant with better … Solution NMR structure of WJ332 in complex with M2-S31N (…

Crystal structure of the drugresistant S31N influenza M2 proton channel

JL Thomaston, WF DeGrado - Protein Science, 2016 - Wiley Online Library
… the first crystal structure of the S31N mutant of influenza M2. … aligned to inhibitor-bound
solution NMR S31N structure 2MUV (… -1-amine inhibitor from 2MUV in channel pore, with water …

[HTML][HTML] M2 as a target to combat influenza drug resistance: what does the evidence say?

J Wang - Future Virology, 2016 - Taylor & Francis
… the drug-resistant mutations to the amantadine binding site in the … NMR structure [Citation14].
Albeit successful for V27A … a dual inhibitor that targets both the WT and the S31N mutant

The L46P mutant confers a novel allosteric mechanism of resistance toward the influenza A virus M2 S31N proton channel blockers

R Musharrafieh, PI Lagarias, C Ma, GS Tan… - Molecular …, 2019 - ASPET
inhibitor that targets the AM2 S31N channel. This led to the identification of the novel drug-resistant
mutation … , and the L26I mutation was postulated to change the local structure of the …

Pharmacological characterization of the spectrum of antiviral activity and genetic barrier to drug resistance of M2-S31N channel blockers

C Ma, J Zhang, J Wang - Molecular pharmacology, 2016 - ASPET
… Among a handful of drug-resistant mutants, M2-S31N is the … that M2-S31N inhibitors were
active against several influenza … different structures or have different dynamics than M2-S31N, …

Profiling the in vitro drug-resistance mechanism of influenza A viruses towards the AM2-S31N proton channel blockers

R Musharrafieh, C Ma, J Wang - Antiviral research, 2018 - Elsevier
Structure-guided design of AM2-S31N inhibitors has led to a … -S31N inhibitors, compounds
1 and 2 were chosen for the … We examined the binding kinetics for drug-resistant mutations

Random mutagenesis analysis of the influenza A M2 proton channel reveals novel resistance mutants

P Santner, JMS Martins, C Kampmeyer… - Biochemistry, 2018 - ACS Publications
… known drug resistant M2 channels V27A, S31N, and swine flu. … group of tested M2 variants
were all still inhibited by drugs … structure [Protein Data Bank (PDB) entry 2L0J] was mutated to …

Novel antiviral drug discovery strategies to tackle drug-resistant mutants of influenza virus strains

WJ Shin, BL Seong - Expert Opinion on Drug Discovery, 2019 - Taylor & Francis
inhibited amantadine-sensitive viruses by blocking the function of wild-type A/M2, but it did
not have the same effect on S31N mutant A/M2 in … among influenza viruses, slight structural

Investigation of the drug resistance mechanism of M2-S31N channel blockers through biomolecular simulations and viral passage experiments

R Musharrafieh, P Lagarias, C Ma, R Hau… - ACS Pharmacology & …, 2020 - ACS Publications
… , we chose a representative M2-S31N inhibitor, compound 3, as … these drug-resistant mutants,
we expressed each mutant M2 … of influenza antivirals to combat drug-resistant viruses, we …