Structure and function of glutamate receptor ion channels.

Abstract:

:A vast number of proteins are involved in synaptic function. Many have been cloned and their functional role defined with varying degrees of success, but their number and complexity currently defy any molecular understanding of the physiology of synapses. A beacon of success in this medieval era of synaptic biology is an emerging understanding of the mechanisms underlying the activity of the neurotransmitter receptors for glutamate. Largely as a result of structural studies performed in the past three years we now have a mechanistic explanation for the activation of channel gating by agonists and partial agonists; the process of desensitization, and its block by allosteric modulators, is also mostly explained; and the basis of receptor subtype selectivity is emerging with clarity as more and more structures are solved. In the space of months we have gone from cartoons of postulated mechanisms to hard fact. It is anticipated that this level of understanding will emerge for other synaptic proteins in the coming decade.

journal_name

Annu Rev Physiol

authors

Mayer ML,Armstrong N

doi

10.1146/annurev.physiol.66.050802.084104

subject

Has Abstract

pub_date

2004-01-01 00:00:00

pages

161-81

eissn

0066-4278

issn

1545-1585

journal_volume

66

pub_type

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