登録情報 データベース : PDB / ID : 8jj1 構造の表示 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 Fab2G7 in two fab conformation 要素(Glutamate receptor ionotropic, NMDA ...) x 2 Fab 2G7 Heavy Chain Fab 2G7 Light Chain 詳細キーワード MEMBRANE PROTEIN / NMDAR / autoimmune encephalitis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 / NMDA selective glutamate receptor complex / neurotransmitter 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 / positive regulation of synaptic transmission, glutamatergic / 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 / ionotropic glutamate receptor signaling pathway / Ras activation upon Ca2+ influx through NMDA receptor / cytoplasmic vesicle membrane / synaptic membrane / response to amphetamine / excitatory postsynaptic potential / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / 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 / memory / long-term synaptic potentiation / 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 / calmodulin binding / neuron projection / postsynaptic density / positive regulation of apoptotic process / response to xenobiotic stimulus / dendrite / synapse / 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 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.77 Å 詳細データ登録者 Wang, H. / Zhu, S. 資金援助 中国, 5件 詳細 詳細を隠す組織 認可番号 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 登録サイト : PDBJ / 処理サイト : PDBJ改定 1.0 2024年6月5日 Provider : repository / タイプ : Initial release改定 1.1 2024年9月11日 Group : Data collection / Database references / カテゴリ : citation / citation_author / em_adminItem : _citation.country / _citation.journal_abbrev ... _citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update 改定 1.2 2024年11月13日 Group : Data collection / Structure summaryカテゴリ : em_admin / pdbx_entry_details / pdbx_modification_featureItem : _em_admin.last_update / _pdbx_entry_details.has_protein_modification改定 1.3 2024年12月25日 Group : Data collection / Database references / カテゴリ : citation / citation_author / em_adminItem : _citation.journal_volume / _citation.page_first ... _citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update
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