NMDA receptor subunit gating--uncovered.
نویسنده
چکیده
Kinetically distinct contributions of NMDA receptor NR1 and NR2 subunits to channel gating have recently been inferred by Banke and Traynelis from single-channel recordings of recombinant NR1–NR2B receptors. The results suggest a new mechanism for receptor activation that will enhance our insight into excitatory synaptic transmission in the brain. In the post-genomic era, this represents an exciting advance in understanding the relationship between structure and function for this unique class of neurotransmitter receptor.
منابع مشابه
Effect of acute exposure to ethanol on distribution of NR1 subunit of NMDA receptor of glutamate in cerebral cortex of chick embryo
Introduction: There is considerable evidence that glutamate-mediated excitatory neurotransmission plays an important role in mediating the behavioral actions of acutely administered ethanol. The aim of the present study was to investigate the effect of acute ethanol exposure on NR1 subunit of NMDA (n-methyl-d-aspartate) receptor distribution in the cerebral cortex of chick embryo on the 10th...
متن کاملO 3:Therapeutic Potential of a Novel NMDA Receptor Subunit 2B Antagonist in a Mouse Model of Autoimmune Neuroinflammation
Glutamate-mediated excitotoxicity and neurodegeneration have been shown as pathophysiological hallmarks of multiple sclerosis (MS) and other autoimmune inflammatory CNS disorders. N‑Methyl‑D‑Aspartate (NMDA) receptors play a pivotal role in the mediation of neuronal glutamate excitotoxicity leading to cellular damage and apoptotic cell death. Current treatment approaches targeting glutamate exc...
متن کاملMorphine-Induced Analgesic Tolerance Effect on Gene Expression of the NMDA Receptor Subunit 1 in Rat Striatum and Prefrontal Cortex
Introduction: Morphine is a potent analgesic but its continual use results in analgesic tolerance. Mechanisms of this tolerance remain to be clarified. However, changes in the functions of μ-opioid and N-Methyl-D-aspartate (NMDA) receptors have been proposed in morphine tolerance. We examined changes in gene expression of the NMDA receptor subunit 1 (NR1) at mRNA levels i...
متن کاملLocal constraints in either the GluN1 or GluN2 subunit equally impair NMDA receptor pore opening
The defining functional feature of N-methyl-d-aspartate (NMDA) receptors is activation gating, the energetic coupling of ligand binding into opening of the associated ion channel pore. NMDA receptors are obligate heterotetramers typically composed of glycine-binding GluN1 and glutamate-binding GluN2 subunits that gate in a concerted fashion, requiring all four ligands to bind for subsequent ope...
متن کاملMutations at F637 in the NMDA receptor NR2A subunit M3 domain influence agonist potency, ion channel gating and alcohol action.
BACKGROUND AND PURPOSE NMDA receptors are important molecular targets of ethanol action in the CNS. Previous studies have identified a site in membrane-associated domain 3 (M3) of the NR1 subunit and two sites in M4 of the NR2A subunit that influence alcohol action; the sites in NR2A M4 also regulate ion channel gating. The purpose of this study was to determine whether mutations at the site in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Trends in neurosciences
دوره 27 1 شماره
صفحات -
تاریخ انتشار 2004