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Influenza A virus encodes an integral membrane protein, A/M2, that forms a pH-gated proton channel that is essential for viral replication. The A/M2 channel is a target for the anti-influenza drug amantadine, although the effectiveness of this drug has been diminished by the appearance of naturally occurring point mutations in the channel pore. Thus, there is a great need to discover novel anti-influenza...
AMPA-type glutamate receptors are specifically inhibited by the noncompetitive antagonists GYKI-53655 and CP-465,022, which act through sites and mechanisms that are not understood. Using receptor mutagenesis, we found that these antagonists bind at the interface between the S1 and S2 glutamate binding core and channel transmembrane domains, specifically interacting with S1-M1 and S2-M4 linkers, thereby...
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