+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-17399 | ||||||||||||
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タイトル | Homomeric GluA2 flip R/G-edited Q/R-edited F231A mutant in tandem with TARP gamma-2, desensitized conformation 3 | ||||||||||||
マップデータ | |||||||||||||
試料 |
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キーワード | AMPA-type glutamate neurotransmitter receptor / auxiliary subunit complex / agonist / desensitized / MEMBRANE PROTEIN | ||||||||||||
機能・相同性 | 機能・相同性情報 Presynaptic depolarization and calcium channel opening / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / neurotransmitter receptor transport, postsynaptic endosome to lysosome / LGI-ADAM interactions / Trafficking of AMPA receptors / regulation of AMPA receptor activity / neurotransmitter receptor internalization / membrane hyperpolarization ...Presynaptic depolarization and calcium channel opening / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / neurotransmitter receptor transport, postsynaptic endosome to lysosome / LGI-ADAM interactions / Trafficking of AMPA receptors / regulation of AMPA receptor activity / neurotransmitter receptor internalization / membrane hyperpolarization / postsynaptic neurotransmitter receptor diffusion trapping / nervous system process / protein targeting to membrane / voltage-gated calcium channel complex / neurotransmitter receptor localization to postsynaptic specialization membrane / neuromuscular junction development / spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / channel regulator activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / regulation of postsynaptic membrane neurotransmitter receptor levels / AMPA glutamate receptor complex / membrane depolarization / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / asymmetric synapse / calcium channel regulator activity / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / voltage-gated calcium channel activity / glutamate receptor binding / positive regulation of synaptic transmission / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / response to fungicide / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / regulation of synaptic transmission, glutamatergic / ionotropic glutamate receptor binding / somatodendritic compartment / dendrite membrane / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / hippocampal mossy fiber to CA3 synapse / positive regulation of synaptic transmission, glutamatergic / regulation of membrane potential / SNARE binding / dendritic shaft / synaptic transmission, glutamatergic / synaptic membrane / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / protein tetramerization / postsynaptic density membrane / establishment of protein localization / modulation of chemical synaptic transmission / terminal bouton / Schaffer collateral - CA1 synapse / receptor internalization / cerebral cortex development / synaptic vesicle membrane / response to calcium ion / synaptic vesicle / presynapse / signaling receptor activity / presynaptic membrane / amyloid-beta binding / growth cone / scaffold protein binding / chemical synaptic transmission / perikaryon / postsynaptic membrane / dendritic spine / postsynaptic density / neuron projection / axon / neuronal cell body / glutamatergic synapse / dendrite / synapse / protein-containing complex binding / protein kinase binding / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane 類似検索 - 分子機能 | ||||||||||||
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: 3.55 Å | ||||||||||||
データ登録者 | Krieger JM / Zhang D / Yamashita K / Greger IH | ||||||||||||
資金援助 | 英国, European Union, 3件
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引用 | ジャーナル: Nature / 年: 2023 タイトル: Structural mobility tunes signalling of the GluA1 AMPA glutamate receptor. 著者: Danyang Zhang / Josip Ivica / James M Krieger / Hinze Ho / Keitaro Yamashita / Imogen Stockwell / Rozbeh Baradaran / Ondrej Cais / Ingo H Greger / 要旨: AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. ...AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. Despite their prominent expression throughout interneurons and glia, their role in long-term potentiation and their involvement in a range of neuropathologies, structural information for GluA2-lacking receptors is currently absent. Here we determine and characterize cryo-electron microscopy structures of the GluA1 homotetramer, fully occupied with TARPγ3 auxiliary subunits (GluA1/γ3). The gating core of both resting and open-state GluA1/γ3 closely resembles GluA2-containing receptors. However, the sequence-diverse N-terminal domains (NTDs) give rise to a highly mobile assembly, enabling domain swapping and subunit re-alignments in the ligand-binding domain tier that are pronounced in desensitized states. These transitions underlie the unique kinetic properties of GluA1. A GluA2 mutant (F231A) increasing NTD dynamics phenocopies this behaviour, and exhibits reduced synaptic responses, reflecting the anchoring function of the AMPAR NTD at the synapse. Together, this work underscores how the subunit-diverse NTDs determine subunit arrangement, gating properties and ultimately synaptic signalling efficiency among AMPAR subtypes. | ||||||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_17399.map.gz | 32.5 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-17399-v30.xml emd-17399.xml | 16.2 KB 16.2 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_17399_fsc.xml | 9.1 KB | 表示 | FSCデータファイル |
画像 | emd_17399.png | 70.6 KB | ||
Filedesc metadata | emd-17399.cif.gz | 6.2 KB | ||
その他 | emd_17399_half_map_1.map.gz emd_17399_half_map_2.map.gz | 59.4 MB 59.4 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-17399 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-17399 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_17399_validation.pdf.gz | 1 MB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_17399_full_validation.pdf.gz | 1 MB | 表示 | |
XML形式データ | emd_17399_validation.xml.gz | 15.8 KB | 表示 | |
CIF形式データ | emd_17399_validation.cif.gz | 21 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17399 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-17399 | HTTPS FTP |
-関連構造データ
関連構造データ | 8p3yMC 8c1pC 8c1qC 8c1rC 8c1sC 8c2hC 8c2iC 8p3qC 8p3sC 8p3tC 8p3uC 8p3vC 8p3wC 8p3xC 8p3zC 8pivC M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_17399.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.4455 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_17399_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_17399_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : GluA2igR_F231A-gamma2 tandem
全体 | 名称: GluA2igR_F231A-gamma2 tandem |
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要素 |
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-超分子 #1: GluA2igR_F231A-gamma2 tandem
超分子 | 名称: GluA2igR_F231A-gamma2 tandem / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: GluA2 C-terminus fused to gamma-2 N-terminus with a linker |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 540 KDa |
-分子 #1: Glutamate receptor 2
分子 | 名称: Glutamate receptor 2 / タイプ: protein_or_peptide / ID: 1 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 98.655672 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFIGFPTDGT HPFVIQMRPD LKGALLSLIE YYQWDKFAYL YDSDRGLSTL Q AVLDSAAE ...文字列: MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFIGFPTDGT HPFVIQMRPD LKGALLSLIE YYQWDKFAYL YDSDRGLSTL Q AVLDSAAE KKWQVTAINV GNINNDKKDE TYRSLFQDLE LKKERRVILD CERDKVNDIV DQVITIGKHV KGYHYIIANL GF TDGDLLK IQFGGANVSG FQIVDYDDSL VSKFIERWST LEEKEYPGAH TATIKYTSAL TYDAVQVMTE AFRNLRKQRI EIS RRGNAG DCLANPAVPW GQGVEIERAL KQVQVEGLSG NIKFDQNGKR INYTINIMEL KTNGPRKIGY WSEVDKMVVT LTEL PSGND TSGLENKTVV VTTILESPYV MMKKNHEMLE GNERYEGYCV DLAAEIAKHC GFKYKLTIVG DGKYGARDAD TKIWN GMVG ELVYGKADIA IAPLTITLVR EEVIDFSKPF MSLGISIMIK KPQKSKPGVF SFLDPLAYEI WMCIVFAYIG VSVVLF LVS RFSPYEWHTE EFEDGRETQS SESTNEFGIF NSLWFSLGAF MRQGCDISPR SLSGRIVGGV WWFFTLIIIS SYTANLA AF LTVERMVSPI ESAEDLSKQT EIAYGTLDSG STKEFFRRSK IAVFDKMWTY MRSAEPSVFV RTTAEGVARV RKSKGKYA Y LLESTMNEYI EQRKPCDTMK VGGNLDSKGY GIATPKGSSL GTPVNLAVLK LSEQGVLDKL KNKWWYDKGE CGAKDSGSK EKTSALSLSN VAGVFYILVG GLGLAMLVAL IEFCYKSRAE AKRMKVAKNP QNINPSSSQN SQNFATYKEG YNVYGIESVK I UniProtKB: Glutamate receptor 2 |
-分子 #2: Voltage-dependent calcium channel gamma-2 subunit
分子 | 名称: Voltage-dependent calcium channel gamma-2 subunit / タイプ: protein_or_peptide / ID: 2 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 35.938746 KDa |
組換発現 | 生物種: Homo sapiens (ヒト) |
配列 | 文字列: MGLFDRGVQM LLTTVGAFAA FSLMTIAVGT DYWLYSRGVC KTKSVSENET SKKNEEVMTH SGLWRTCCLE GNFKGLCKQI DHFPEDADY EADTAEYFLR AVRASSIFPI LSVILLFMGG LCIAASEFYK TRHNIILSAG IFFVSAGLSN IIGIIVYISA N AGDPSKSD ...文字列: MGLFDRGVQM LLTTVGAFAA FSLMTIAVGT DYWLYSRGVC KTKSVSENET SKKNEEVMTH SGLWRTCCLE GNFKGLCKQI DHFPEDADY EADTAEYFLR AVRASSIFPI LSVILLFMGG LCIAASEFYK TRHNIILSAG IFFVSAGLSN IIGIIVYISA N AGDPSKSD SKKNSYSYGW SFYFGALSFI IAEMVGVLAV HMFIDRHKQL RATARATDYL QASAITRIPS YRYRYQRRSR SS SRSTEPS HSRDASPVGV KGFNTLPSTE ISMYTLSRDP LKAATTPTAT YNSDRDNSFL QVHNCIQKDS KDSLHANTAN RRT TPV UniProtKB: Voltage-dependent calcium channel gamma-2 subunit |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 8 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | TFS KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.4 µm 最小 デフォーカス(公称値): 1.4000000000000001 µm |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
+画像解析
-原子モデル構築 1
精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
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得られたモデル | PDB-8p3y: |