+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7ryy | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | Structure of the complex of LBD-TMD part of AMPA receptor GluA2 with auxiliary subunit TARP gamma-5 bound to agonist glutamate | |||||||||||||||
要素 | Glutamate receptor 2 | |||||||||||||||
キーワード | MEMBRANE PROTEIN / AMPA receptor / ion channel / neurotransmission / synapse / TARP gamma-5 | |||||||||||||||
機能・相同性 | 機能・相同性情報 spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity ...spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / asymmetric synapse / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / 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 / 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 / Schaffer collateral - CA1 synapse / terminal bouton / receptor internalization / cerebral cortex development / synaptic vesicle membrane / 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 / plasma membrane 類似検索 - 分子機能 | |||||||||||||||
生物種 | Rattus norvegicus (ドブネズミ) | |||||||||||||||
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: 4.4 Å | |||||||||||||||
データ登録者 | Klykov, O.V. / Gangwar, S.P. / Yelshanskaya, M.V. / Sobolevsky, A.I. | |||||||||||||||
資金援助 | 米国, 4件
| |||||||||||||||
引用 | ジャーナル: Mol Cell / 年: 2021 タイトル: Structure and desensitization of AMPA receptor complexes with type II TARP γ5 and GSG1L. 著者: Oleg Klykov / Shanti Pal Gangwar / Maria V Yelshanskaya / Laura Yen / Alexander I Sobolevsky / 要旨: AMPA receptors (AMPARs) mediate the majority of excitatory neurotransmission. Their surface expression, trafficking, gating, and pharmacology are regulated by auxiliary subunits. Of the two types of ...AMPA receptors (AMPARs) mediate the majority of excitatory neurotransmission. Their surface expression, trafficking, gating, and pharmacology are regulated by auxiliary subunits. Of the two types of TARP auxiliary subunits, type I TARPs assume activating roles, while type II TARPs serve suppressive functions. We present cryo-EM structures of GluA2 AMPAR in complex with type II TARP γ5, which reduces steady-state currents, increases single-channel conductance, and slows recovery from desensitization. Regulation of AMPAR function depends on its ligand-binding domain (LBD) interaction with the γ5 head domain. GluA2-γ5 complex shows maximum stoichiometry of two TARPs per AMPAR tetramer, being different from type I TARPs but reminiscent of the auxiliary subunit GSG1L. Desensitization of both GluA2-GSG1L and GluA2-γ5 complexes is accompanied by rupture of LBD dimer interface, while GluA2-γ5 but not GluA2-GSG1L LBD dimers remain two-fold symmetric. Different structural architectures and desensitization mechanisms of complexes with auxiliary subunits endow AMPARs with broad functional capabilities. | |||||||||||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7ryy.cif.gz | 402.8 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb7ryy.ent.gz | 300 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7ryy.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 7ryy_validation.pdf.gz | 1.3 MB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 7ryy_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 7ryy_validation.xml.gz | 64.6 KB | 表示 | |
CIF形式データ | 7ryy_validation.cif.gz | 95.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ry/7ryy ftp://data.pdbj.org/pub/pdb/validation_reports/ry/7ryy | HTTPS FTP |
-関連構造データ
関連構造データ | 24748MC 7ryzC 7rz4C 7rz5C 7rz6C 7rz7C 7rz8C 7rz9C 7rzaC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 (文献) |
---|---|
類似構造データ |
-リンク
-集合体
登録構造単位 |
|
---|---|
1 |
|
-要素
#1: タンパク質 | 分子量: 116018.000 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Gria2, Glur2 / プラスミド: BacMam / 細胞株 (発現宿主): HEK293S-GnTi / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19491 #2: 化合物 | #3: 化合物 | ChemComp-GLU / 研究の焦点であるリガンドがあるか | Y | Has protein modification | Y | |
---|
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: GluA2 / タイプ: COMPLEX 詳細: Map displaying ligand binding, the transmembrane domain, and auxiliary subunit TARP gamma-5 Entity ID: #1 / 由来: RECOMBINANT | |||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
分子量 | 実験値: NO | |||||||||||||||||||||||||
由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) | |||||||||||||||||||||||||
由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: HEK293S-GnTi / プラスミド: BacMam | |||||||||||||||||||||||||
緩衝液 | pH: 8 | |||||||||||||||||||||||||
緩衝液成分 |
| |||||||||||||||||||||||||
試料 | 濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: Protein extracted and reconstituted in detergent micelle | |||||||||||||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: C-flat-1.2/1.3 | |||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K 詳細: 25 mM glutamate was added to the purified protein and incubated on ice for 30 min before sample preparation |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 平均露光時間: 2.5 sec. / 電子線照射量: 51.18 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 3 |
-解析
EMソフトウェア |
| ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | タイプ: NONE | ||||||||||||||||
粒子像の選択 | 選択した粒子像数: 3712556 | ||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||
3次元再構成 | 解像度: 4.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 99056 / 対称性のタイプ: POINT |