登録情報 データベース : EMDB / ID : EMD-36336 ダウンロードとリンクタイトル Cryo-EM structure of GluN1-2A NMDAR in complex with human Fab5F6 in one fab bind conformation マップデータ 詳細 試料細胞 : Cryo-EM structure of GluN1-2A NMDAR in complex with human Fab23タンパク質・ペプチド : Glutamate receptor ionotropic, NMDA 2Aタンパク質・ペプチド : Glutamate receptor ionotropic, NMDA 1タンパク質・ペプチド : Fab5F6 Heavy Chainタンパク質・ペプチド : Fab5F6 Light Chainリガンド : 2-acetamido-2-deoxy-beta-D-glucopyranose 詳細 キーワード NMDAR / autoimmune encephalitis / 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
glycine-gated cation channel activity / excitatory chemical synaptic transmission / directional locomotion / Synaptic adhesion-like molecules / serotonin metabolic process / protein localization to postsynaptic membrane / sleep / response to glycine / propylene metabolic process / regulation of monoatomic cation transmembrane transport ... glycine-gated cation channel activity / excitatory chemical synaptic transmission / directional locomotion / Synaptic adhesion-like molecules / serotonin metabolic process / protein localization to postsynaptic membrane / sleep / response to glycine / propylene metabolic process / regulation of monoatomic cation transmembrane transport / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / Neurexins and neuroligins / ligand-gated sodium channel activity / glutamate binding / glutamate receptor signaling pathway / calcium ion transmembrane import into cytosol / protein heterotetramerization / glycine binding / startle response / positive regulation of reactive oxygen species biosynthetic process / monoatomic cation transmembrane transport / Negative regulation of NMDA receptor-mediated neuronal transmission / dopamine metabolic process / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of calcium ion transport into cytosol / Long-term potentiation / monoatomic cation transport / excitatory synapse / regulation of neuronal synaptic plasticity / monoatomic ion channel complex / positive regulation of excitatory postsynaptic potential / synaptic cleft / calcium ion homeostasis / MECP2 regulates neuronal receptors and channels / glutamate-gated calcium ion channel activity / neurogenesis / EPHB-mediated forward signaling / sensory perception of pain / sodium ion transmembrane transport / response to amphetamine / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / Ras activation upon Ca2+ influx through NMDA receptor / cytoplasmic vesicle membrane / excitatory postsynaptic potential / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / synaptic membrane / protein catabolic process / postsynaptic density membrane / negative regulation of protein catabolic process / brain development / calcium ion transmembrane transport / visual learning / regulation of synaptic plasticity / response to wounding / long-term synaptic potentiation / memory / terminal bouton / synaptic vesicle / signaling receptor activity / amyloid-beta binding / presynaptic membrane / RAF/MAP kinase cascade / response to ethanol / chemical synaptic transmission / dendritic spine / postsynaptic membrane / learning or memory / neuron projection / calmodulin binding / postsynaptic density / positive regulation of apoptotic process / response to xenobiotic stimulus / synapse / dendrite / calcium ion binding / endoplasmic reticulum membrane / protein-containing complex binding / glutamatergic synapse / cell surface / positive regulation of transcription by RNA polymerase II / zinc ion binding / plasma membrane / cytoplasm 類似検索 - 分子機能 Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / 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 / : ... Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / 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 ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 2A 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 4.5 Å 詳細 データ登録者Wang H / Zhu S 資金援助 中国, 5件 詳細 詳細を隠すOrganization Grant number 国 Other government 2022ZD0212700 中国 Other government LG 202106-02 中国 Other government 2017YFA0505700 中国 Other government XDBS01020000 中国 Other government 2018SHZDZX05 中国
引用ジャーナル : Nat Struct Mol Biol / 年 : 2024タイトル : Structural basis for antibody-mediated NMDA receptor clustering and endocytosis in autoimmune encephalitis.著者 : Han Wang / Chun Xie / Bo Deng / Jinjun Ding / Na Li / Zengwei Kou / Mengmeng Jin / Jie He / Qinrui Wang / Han Wen / Jinbao Zhang / Qinming Zhou / Sheng Chen / Xiangjun Chen / Ti-Fei Yuan / Shujia Zhu / 要旨 : Antibodies against N-methyl-D-aspartate receptors (NMDARs) are most frequently detected in persons with autoimmune encephalitis (AE) and used as diagnostic biomarkers. Elucidating the structural ... Antibodies against N-methyl-D-aspartate receptors (NMDARs) are most frequently detected in persons with autoimmune encephalitis (AE) and used as diagnostic biomarkers. Elucidating the structural basis of monoclonal antibody (mAb) binding to NMDARs would facilitate the development of targeted therapy for AE. Here, we reconstructed nanodiscs containing green fluorescent protein-fused NMDARs to label and sort individual immune B cells from persons with AE and further cloned and identified mAbs against NMDARs. This allowed cryo-electron microscopy analysis of NMDAR-Fab complexes, revealing that autoantibodies bind to the R1 lobe of the N-terminal domain of the GluN1 subunit. Small-angle X-ray scattering studies demonstrated NMDAR-mAb stoichiometry of 2:1 or 1:2, structurally suitable for mAb-induced clustering and endocytosis of NMDARs. Importantly, these mAbs reduced the surface NMDARs and NMDAR-mediated currents, without tonically affecting NMDAR channel gating. These structural and functional findings imply that the design of neutralizing antibody binding to the R1 lobe of NMDARs represents a potential therapy for AE treatment. 履歴 登録 2023年5月29日 - ヘッダ(付随情報) 公開 2024年6月5日 - マップ公開 2024年6月5日 - 更新 2024年12月25日 - 現状 2024年12月25日 処理サイト : PDBj / 状態 : 公開
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