Structure and mechanism of AMPA receptor — auxiliary protein complexes

Autor: Eric Gouaux, Shanshuang Chen
Rok vydání: 2019
Předmět:
Zdroj: Current Opinion in Structural Biology. 54:104-111
ISSN: 0959-440X
Popis: Ionotropic glutamate receptors in vertebrates are composed of three major subtypes - AMPA, kainate, and NMDA receptors - and mediate the majority of fast excitatory neurotransmission at chemical synapses of the central nervous system. Among the three major families, native AMPA receptors function as complexes with a variety of auxiliary subunits, which in turn modulate receptor trafficking, gating, pharmacology, and permeation. Despite the long history of structure-mechanism studies using soluble receptor domains or intact yet isolated receptors, structures of AMPA receptor-auxiliary subunit complexes have not been available until recent breakthroughs in single-particle cryo-electron microscopy. Single particle cryo-EM studies have, in turn, provided new insights into the structure and organization of AMPA receptor - auxiliary protein complexes and into the molecular mechanisms of AMPA receptor activation and desensitization.
Databáze: OpenAIRE