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基本情報
登録情報 | データベース: EMDB / ID: EMD-4575 | |||||||||
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タイトル | Full length GluA1/2-gamma8 complex | |||||||||
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![]() | AMPAR / ion channel / GluA1 / GluA2 / tarp / MEMBRANE PROTEIN | |||||||||
機能・相同性 | ![]() Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex ...Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex / postsynaptic neurotransmitter receptor diffusion trapping / neuron spine / myosin V binding / regulation of AMPA receptor activity / Trafficking of AMPA receptors / channel regulator activity / LGI-ADAM interactions / proximal dendrite / regulation of monoatomic ion transmembrane transport / protein phosphatase 2B binding / response to arsenic-containing substance / cellular response to dsRNA / cellular response to L-glutamate / dendritic spine membrane / long-term synaptic depression / Synaptic adhesion-like molecules / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / response to morphine / neuronal cell body membrane / spine synapse / dendritic spine neck / protein kinase A binding / dendritic spine head / peptide hormone receptor binding / cellular response to amine stimulus / response to psychosocial stress / spinal cord development / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / adenylate cyclase binding / ionotropic glutamate receptor complex / immunoglobulin binding / asymmetric synapse / conditioned place preference / excitatory synapse / response to electrical stimulus / regulation of receptor recycling / G-protein alpha-subunit binding / positive regulation of excitatory postsynaptic potential / glutamate receptor binding / 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 / neuronal action potential / voltage-gated calcium channel activity / regulation of synaptic transmission, glutamatergic / response to fungicide / glutamate-gated receptor activity / cytoskeletal protein binding / synapse assembly / regulation of long-term synaptic depression / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / somatodendritic compartment / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / synaptic membrane / SNARE binding / dendritic shaft / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / response to cocaine / calcium channel regulator activity / synaptic transmission, glutamatergic / PDZ domain binding / protein tetramerization / cellular response to amino acid stimulus / neuromuscular junction / response to nutrient levels / establishment of protein localization / response to peptide hormone / postsynaptic density membrane 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.3 Å | |||||||||
![]() | Herguedas B / Garcia-Nafria J | |||||||||
![]() | ![]() タイトル: Architecture of the heteromeric GluA1/2 AMPA receptor in complex with the auxiliary subunit TARP γ8. 著者: Beatriz Herguedas / Jake F Watson / Hinze Ho / Ondrej Cais / Javier García-Nafría / Ingo H Greger / ![]() 要旨: AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs ...AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs act predominantly as heteromers, structural studies have focused on homomeric assemblies. Here, we present a cryo-electron microscopy structure of the heteromeric GluA1/2 receptor associated with two transmembrane AMPAR regulatory protein (TARP) γ8 auxiliary subunits, the principal AMPAR complex at hippocampal synapses. Within the receptor, the core subunits arrange to give the GluA2 subunit dominant control of gating. This structure reveals the geometry of the Q/R site that controls calcium flux, suggests association of TARP-stabilized lipids, and demonstrates that the extracellular loop of γ8 modulates gating by selectively interacting with the GluA2 ligand-binding domain. Collectively, this structure provides a blueprint for deciphering the signal transduction mechanisms of synaptic AMPARs. | |||||||||
履歴 |
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構造の表示
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-検証レポート
文書・要旨 | ![]() | 189.5 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 189 KB | 表示 | |
XML形式データ | ![]() | 500 B | 表示 | |
CIF形式データ | ![]() | 448 B | 表示 | |
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「今月の分子」の関連する項目 |
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ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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: 1.4 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : GluA1/A2 bound to gamma-8
全体 | 名称: GluA1/A2 bound to gamma-8 |
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要素 |
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-超分子 #1: GluA1/A2 bound to gamma-8
超分子 | 名称: GluA1/A2 bound to gamma-8 / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#3 |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 447 kDa/nm |
-分子 #1: GluA1
分子 | 名称: GluA1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 100.739602 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: ADYKDDDDKN FPNNIQIGGL FPNQQSQEHA AFRFALSQLT EPPKLLPQID IVNISDSFEM TYRFCSQFSK GVYAIFGFYE RRTVNMLTS FCGALHVCFI TPSFPVDTSN QFVLQLRPEL QEALISIIDH YKWQTFVYIY DADRGLSVLQ RVLDTAAEKN W QVTAVNIL ...文字列: ADYKDDDDKN FPNNIQIGGL FPNQQSQEHA AFRFALSQLT EPPKLLPQID IVNISDSFEM TYRFCSQFSK GVYAIFGFYE RRTVNMLTS FCGALHVCFI TPSFPVDTSN QFVLQLRPEL QEALISIIDH YKWQTFVYIY DADRGLSVLQ RVLDTAAEKN W QVTAVNIL TTTEEGYRML FQDLEKKKER LVVVDCESER LNAILGQIVK LEKNGIGYHY ILANLGFMDI DLNKFKESGA NV TGFQLVN YTDTIPARIM QQWRTSDSRD HTRVDWKRPK YTSALTYDGV KVMAEAFQSL RRQRIDISRR GNAGDCLANP AVP WGQGID IQRALQQVRF EGLTGNVQFN EKGRRTNYTL HVIEMKHDGI RKIGYWNEDD KFVPAATDAQ AGGDNSSVQN RTYI VTTIL EDPYVMLKKN ANQFEGNDRY EGYCVELAAE IAKHVGYSYR LEIVSDGKYG ARDPDTKAWN GMVGELVYGR ADVAV APLT ITLVREEVID FSKPFMSLGI SIMIKKPQKS KPGVFSFLDP LAYEIWMCIV FAYIGVSVVL FLVSRFSPYE WHSEEF EEG RDQTTSDQSN EFGIFNSLWF SLGAFMQQGC DISPRSLSGR IVGGVWWFFT LIIISSYTAN LAAFLTVERM VSPIESA ED LAKQTEIAYG TLEAGSTKEF FRRSKIAVFE KMWTYMKSAE PSVFVRTTEE GMIRVRKSKG KYAYLLESTM NEYIEQRK P CDTMKVGGNL DSKGYGIATP KGSALRGPVN LAVLKLSEQG VLDKLKSKWW YDKGECGSKD SGSKDKTSAL SLSNVAGVF YILIGGLGLA MLVALIEFCY KSRSESKRMK GFCLIPQQSI NEAIRTSTLP RNSGAGASGG GGSGENGRVV SQDFPKSMQS IPCMSHSSG MPLGATGL UniProtKB: Glutamate receptor 1 |
-分子 #2: Glutamate receptor 2
分子 | 名称: Glutamate receptor 2 / タイプ: protein_or_peptide / ID: 2 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 93.880078 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: VSSNSIQIGG LFPRGADQEY SAFRVGMVQF STSEFRLTPH IDNLEVANSF AVTNAFCSQF SRGVYAIFGF YDKKSVNTIT SFCGTLHVS FITPSFPTDG THPFVIQMRP DLKGALLSLI EYYQWDKFAY LYDSDRGLST LQAVLDSAAE KKWQVTAINV G NINNDKKD ...文字列: VSSNSIQIGG LFPRGADQEY SAFRVGMVQF STSEFRLTPH IDNLEVANSF AVTNAFCSQF SRGVYAIFGF YDKKSVNTIT SFCGTLHVS FITPSFPTDG THPFVIQMRP DLKGALLSLI EYYQWDKFAY LYDSDRGLST LQAVLDSAAE KKWQVTAINV G NINNDKKD ETYRSLFQDL ELKKERRVIL DCERDKVNDI VDQVITIGKH VKGYHYIIAN LGFTDGDLLK IQFGGANVSG FQ IVDYDDS LVSKFIERWS TLEEKEYPGA HTATIKYTSA LTYDAVQVMT EAFRNLRKQR IEISRRGNAG DCLANPAVPW GQG VEIERA LKQVQVEGLS GNIKFDQNGK RINYTINIME LKTNGPRKIG YWSEVDKMVV TLTELPSGND TSGLENKTVV VTTI LESPY VMMKKNHEML EGNERYEGYC VDLAAEIAKH CGFKYKLTIV GDGKYGARDA DTKIWNGMVG ELVYGKADIA IAPLT ITLV REEVIDFSKP FMSLGISIMI KKPQKSKPGV FSFLDPLAYE IWMCIVFAYI GVSVVLFLVS RFSPYEWHTE EFEDGR ETQ SSESTNEFGI FNSLWFSLGA FMRQGCDISP RSLSGRIVGG VWWFFTLIII SSYTANLAAF LTVERMVSPI ESAEDLS KQ TEIAYGTLDS GSTKEFFRRS KIAVFDKMWT YMRSAEPSVF VRTTAEGVAR VRKSKGKYAY LLESTMNEYI EQRKPCDT M KVGGNLDSKG YGIATPKGSS LGTPVNLAVL KLSEQGVLDK LKNKWWYDKG ECGAKDSGSK EKTSALSLSN VAGVFYILV GGLGLAMLVA LIEFCYKSRA EAKRMKVAKN PQNINPSSS UniProtKB: Glutamate receptor 2 |
-分子 #3: Voltage-dependent calcium channel gamma-8 subunit
分子 | 名称: Voltage-dependent calcium channel gamma-8 subunit / タイプ: protein_or_peptide / ID: 3 / コピー数: 2 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 43.592008 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: GESLKRWNEE RGLWCEKGVQ VLLTTIGAFA AFGLMTIAIS TDYWLYTRAL ICNTTNLTAG DDGPPHRGGS GSSEKKDPGG LTHSGLWRI CCLEGLKRGV CVKINHFPED TDYDHDSSEY LLRVVRASSI FPILSAILLL LGGVCVAASR VYKSKRNIIL G AGILFVAA ...文字列: GESLKRWNEE RGLWCEKGVQ VLLTTIGAFA AFGLMTIAIS TDYWLYTRAL ICNTTNLTAG DDGPPHRGGS GSSEKKDPGG LTHSGLWRI CCLEGLKRGV CVKINHFPED TDYDHDSSEY LLRVVRASSI FPILSAILLL LGGVCVAASR VYKSKRNIIL G AGILFVAA GLSNIIGVIV YISANAGEPG PKRDEEKKNH YSYGWSFYFG GLSFILAEVI GVLAVNIYIE RSREAHCQSR SD LLKAGGG AGGSGGSGPS AILRLPSYRF RYRRRSRSSS RGSSEASPSR DASPGGPGGP GFASTDISMY TLSRDPSKGS VAA GLASAG GGGGGAGVGA YGGAAGAAGG GGTGSERDRG SSAGFLTLHN AFPKEAASGV TVTVTGPPAA PAPAPPAPAA PAPG TLSKE AAASNTNTLN RKLEVLFQ UniProtKB: Voltage-dependent calcium channel gamma-8 subunit |
-分子 #6: 6-nitro-2,3-bis(oxidanylidene)-1,4-dihydrobenzo[f]quinoxaline-7-s...
分子 | 名称: 6-nitro-2,3-bis(oxidanylidene)-1,4-dihydrobenzo[f]quinoxaline-7-sulfonamide タイプ: ligand / ID: 6 / コピー数: 4 / 式: E2Q |
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分子量 | 理論値: 336.28 Da |
Chemical component information | ![]() ChemComp-E2Q: |
-分子 #7: 2-acetamido-2-deoxy-beta-D-glucopyranose
分子 | 名称: 2-acetamido-2-deoxy-beta-D-glucopyranose / タイプ: ligand / ID: 7 / コピー数: 2 / 式: NAG |
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分子量 | 理論値: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.4 mg/mL |
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緩衝液 | pH: 8 詳細: 25 mM TRIS, pH 8, 150 mM NaCl and 0.1 % digitonin (w/v) |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV 詳細: 3uL on grid, 60 sec incubation and 4sec blotting time. |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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温度 | 最低: 100.0 K / 最高: 100.0 K |
特殊光学系 | 位相板: VOLTA PHASE PLATE / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / デジタル化 - サイズ - 横: 3838 pixel / デジタル化 - サイズ - 縦: 3710 pixel / 撮影したグリッド数: 3 / 実像数: 5005 / 平均露光時間: 14.0 sec. / 平均電子線量: 32.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): -0.9 µm / 最小 デフォーカス(公称値): -0.2 µm / 倍率(公称値): 105000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |