X-ray structures of AMPA receptor–cone snail toxin complexes illuminate activation mechanism

Chen L., Dürr KL., Gouaux E.

Activating a receptor to excite a neuron Transmitting signals between nerve cells, occuring at structures known as synapses, is critical to processes such as learning and memory. Fast transmission occurs when glutamate is released from a presynaptic neuron and binds to ionotropic glutamate receptors (iGluRs) in the cell membrane of a postsynaptic neuron. The iGluR contains an ion channel that is transiently opened, to activate the postsynaptic neuron, but then closes rapidly. Chen et al. and Yelshanskaya et al. report crystal structures in a range of conformations that together provide insight into how glutamate binding causes the channel to open and how other molecules that bind to the receptor modulate this. The information could aid in the design of drugs to treat cognitive impairment or seizure disorders Science , this issue p. 1021 and p. 1070

DOI

10.1126/science.1258409

Type

Journal article

Publisher

American Association for the Advancement of Science (AAAS)

Publication Date

2014-08-29T00:00:00+00:00

Volume

345

Pages

1021 - 1026

Total pages

5

Permalink More information Close