登録情報 データベース : EMDB / ID : EMD-49724 ダウンロードとリンクタイトル The structure of GluA1/A4 LBD-TMD in Noelin-AMPAR complex マップデータ 詳細 試料複合体 : CP-AMPA receptorsタンパク質・ペプチド : Glutamate receptor 1タンパク質・ペプチド : Isoform 2 of Glutamate receptor 4タンパク質・ペプチド : Auxiliary protein at A'/C'タンパク質・ペプチド : Voltage-dependent calcium channel gamma-2 subunitリガンド : {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquinoxalin-1(2H)-yl]methyl}phosphonic acid 詳細 キーワード iGluR / CP-AMPA receptors / MEMBRANE PROTEIN機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
Cargo concentration in the ER / axonal spine / Presynaptic depolarization and calcium channel opening / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose ... Cargo concentration in the ER / axonal spine / Presynaptic depolarization and calcium channel opening / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose / neuron spine / myosin V binding / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of monoatomic ion transmembrane transport / regulation of AMPA receptor activity / channel regulator activity / Trafficking of AMPA receptors / kainate selective glutamate receptor complex / LGI-ADAM interactions / response to arsenic-containing substance / cellular response to L-glutamate / cellular response to dsRNA / membrane hyperpolarization / dendritic spine membrane / regulation of synapse structure or activity / long-term synaptic depression / nervous system process / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / protein targeting to membrane / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / response to morphine / neuronal cell body membrane / protein kinase A binding / peptide hormone receptor binding / cellular response to amine stimulus / neurotransmitter receptor localization to postsynaptic specialization membrane / response to psychosocial stress / spinal cord development / neuromuscular junction development / perisynaptic space / Activation of AMPA receptors / AMPA glutamate receptor activity / transmission of nerve impulse / response to lithium ion / negative regulation of smooth muscle cell apoptotic process / Trafficking of GluR2-containing AMPA receptors / behavioral response to pain / AMPA glutamate receptor complex / adenylate cyclase binding / immunoglobulin binding / asymmetric synapse / ionotropic glutamate receptor complex / excitatory synapse / conditioned place preference / response to electrical stimulus / regulation of receptor recycling / G-protein alpha-subunit binding / membrane depolarization / glutamate receptor binding / positive regulation of excitatory postsynaptic potential / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / positive regulation of synaptic transmission / positive regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / regulation of postsynaptic membrane neurotransmitter receptor levels / voltage-gated calcium channel activity / neuronal action potential / response to fungicide / glutamate-gated receptor activity / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / somatodendritic compartment / dendrite membrane / ionotropic glutamate receptor binding / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / synaptic membrane / hippocampal mossy fiber to CA3 synapse / dendritic shaft / regulation of membrane potential / response to cocaine / calcium channel regulator activity / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / cellular response to amino acid stimulus / neuromuscular junction / response to nutrient levels / response to peptide hormone / response to calcium ion / postsynaptic density membrane / recycling endosome / cerebral cortex development / regulation of synaptic plasticity 類似検索 - 分子機能 Voltage-dependent calcium channel, gamma-2 subunit / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel ... Voltage-dependent calcium channel, gamma-2 subunit / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I 類似検索 - ドメイン・相同性 Glutamate receptor 1 / Glutamate receptor 4 / Voltage-dependent calcium channel gamma-2 subunit 類似検索 - 構成要素生物種 Rattus norvegicus (ドブネズミ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.18 Å 詳細 データ登録者Fang CF / Gouaux E 資金援助 米国, 1件 詳細 詳細を隠すOrganization Grant number 国 Howard Hughes Medical Institute (HHMI) 米国
引用ジャーナル : Nature / 年 : 2025タイトル : Gating and noelin clustering of native Ca-permeable AMPA receptors.著者 : Chengli Fang / Cathy J Spangler / Jumi Park / Natalie Sheldon / Laurence O Trussell / Eric Gouaux / 要旨 : AMPA-type ionotropic glutamate receptors (AMPARs) are integral to fast excitatory synaptic transmission and have vital roles in synaptic plasticity, motor coordination, learning and memory. Whereas ... AMPA-type ionotropic glutamate receptors (AMPARs) are integral to fast excitatory synaptic transmission and have vital roles in synaptic plasticity, motor coordination, learning and memory. Whereas extensive structural studies have been conducted on recombinant AMPARs and native calcium-impermeable (CI)-AMPARs alongside their auxiliary proteins, the molecular architecture of native calcium-permeable (CP)-AMPARs has remained undefined. Here, to determine the subunit composition, physiological architecture and gating mechanisms of CP-AMPARs, we visualize these receptors, immunoaffinity purified from rat cerebella, and resolve their structures using cryo-electron microscopy (cryo-EM). Our results indicate that the predominant assembly consists of GluA1 and GluA4 subunits, with the GluA4 subunit occupying the B and D positions, and auxiliary subunits, including transmembrane AMPAR regulatory proteins (TARPs) located at the B' and D' positions, and cornichon homologues (CNIHs) or TARPs located at the A' and C' positions. Furthermore, we resolved the structure of the noelin (NOE1)-GluA1-GluA4 complex, in which NOE1 specifically binds to the GluA4 subunit at the B and D positions. Notably, NOE1 stabilizes the amino-terminal domain layer without affecting gating properties of the receptor. NOE1 contributes to AMPAR function by forming dimeric AMPAR assemblies that are likely to engage in extracellular networks, clustering receptors in synaptic environments and modulating receptor responsiveness to synaptic inputs. 履歴 登録 2025年3月14日 - ヘッダ(付随情報) 公開 2025年7月2日 - マップ公開 2025年7月2日 - 更新 2025年9月17日 - 現状 2025年9月17日 処理サイト : RCSB / 状態 : 公開
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