Structural insights into gating mechanism and allosteric regulation of NMDA receptors

Curr Opin Neurobiol. 2023 Dec:83:102806. doi: 10.1016/j.conb.2023.102806. Epub 2023 Nov 9.

Abstract

N-methyl-d-aspartate receptors (NMDARs) belong to the ionotropic glutamate receptors (iGluRs) superfamily and act as coincidence detectors that are crucial to neuronal development and synaptic plasticity. They typically assemble as heterotetramers of two obligatory GluN1 subunits and two alternative GluN2 (from 2A to 2D) and/or GluN3 (3A and 3B) subunits. These alternative subunits mainly determine the diverse biophysical and pharmacological properties of different NMDAR subtypes. Over the past decade, the unprecedented advances in structure elucidation of these tetrameric NMDARs have provided atomic insights into channel gating, allosteric modulation and the action of therapeutic drugs. A wealth of structural and functional information would accelerate the artificial intelligence-based drug design to exploit more NMDAR subtype-specific molecules for the treatment of neurological and psychiatric disorders.

Publication types

  • Review

MeSH terms

  • Allosteric Regulation
  • Artificial Intelligence*
  • Humans
  • Protein Subunits / chemistry
  • Protein Subunits / metabolism
  • Receptors, N-Methyl-D-Aspartate* / metabolism

Substances

  • Receptors, N-Methyl-D-Aspartate
  • Protein Subunits