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基本情報
登録情報 | データベース: PDB / ID: 1nnk | ||||||
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タイトル | X-ray structure of the GluR2 ligand-binding core (S1S2J) in complex with (S)-ATPA at 1.85 A resolution. Crystallization with zinc ions. | ||||||
![]() | Glutamate receptor 2 | ||||||
![]() | MEMBRANE PROTEIN / Ionotropic glutamate receptor GluR2 / ligand-binding core / agonist complex | ||||||
機能・相同性 | ![]() 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 / immunoglobulin binding ...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 / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / asymmetric synapse / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / glutamate receptor binding / glutamate-gated receptor activity / regulation of synaptic transmission, glutamatergic / response to fungicide / cytoskeletal protein binding / ionotropic glutamate receptor binding / presynaptic active zone membrane / extracellular ligand-gated monoatomic ion channel activity / somatodendritic compartment / glutamate-gated calcium ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / SNARE binding / dendritic shaft / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / protein tetramerization / establishment of protein localization / synaptic membrane / modulation of chemical synaptic transmission / postsynaptic density membrane / terminal bouton / Schaffer collateral - CA1 synapse / cerebral cortex development / receptor internalization / synaptic vesicle membrane / synaptic vesicle / presynapse / signaling receptor activity / amyloid-beta binding / presynaptic membrane / growth cone / scaffold protein binding / chemical synaptic transmission / dendritic spine / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / axon / neuronal cell body / synapse / dendrite / protein-containing complex binding / protein kinase binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Lunn, M.-L. / Hogner, A. / Stensbol, T.B. / Gouaux, E. / Egebjerg, J. / Kastrup, J.S. | ||||||
![]() | ![]() タイトル: Three-Dimensional Structure of the Ligand-Binding Core of GluR2 in Complex with the Agonist (S)-ATPA: Implications for Receptor Subunit Selectivity. 著者: Lunn, M.L. / Hogner, A. / Stensbol, T.B. / Gouaux, E. / Egebjerg, J. / Kastrup, J.S. #1: ![]() タイトル: Structural basis for AMPA receptor activation and ligand selectivity: Crystal structures of five agonist complexes with the GluR2 ligand binding core. 著者: Hogner, A. / Kastrup, J.S. / Jin, R. / Liljefors, T. / Mayer, M.L. / Egebjerg, J. / Larsen, I. / Gouaux, E. #2: ![]() タイトル: Mechanisms for activation and antagonism of an AMPA-sensitive glutamate receptor: Crystal structures of the GluR2 ligand binding core. 著者: Armstrong, N. / Gouaux, E. #3: ![]() タイトル: Mechanism of glutamate receptor desensitization. 著者: Sun, Y. / Olson, R. / Horning, M. / Armstrong, N. / Mayer, M. / Gouaux, E. #4: ![]() タイトル: Probing the ligand binding domain of the GluR2 receptor by proteolysis and deletion mutagenesis defines domain boundaries and yields a crystallizable construct. 著者: Chen, G.Q. / Sun, R. / Jin, R. / Gouaux, E. | ||||||
履歴 |
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Remark 300 | BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 ... BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAIN(S). SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). NOTE THAT COORDINATES FOR ONE DIMER OF THE TETRAMERIC MULTIMER REPRESENTING THE KNOWN BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS GIVEN IN REMARK 350. | ||||||
Remark 999 | SEQUENCE Native GluR2 is a membrane protein. The protein crystallized is the extracellular ligand- ...SEQUENCE Native GluR2 is a membrane protein. The protein crystallized is the extracellular ligand-binding core of GluR2. Transmembrane regions were genetically removed and replaced with a Gly-Thr linker (residues 115-116). Therefore, the sequence matches discontinuously with the reference database (413-527, 653-796). The two first residues of the sequence (Gly-2, Ala-1) are cloning artifacts and were not located in the electron density map. |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 72.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 52.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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単位格子 |
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詳細 | The biological assembly is a tetramer composed of dimers-of-dimers. Only the dimer is observed in the crystal. The dimer may be generated by applying the following to chain A: TRANSFORM FRACTIONAL - -1.00000 0.00000 0.00000 - 0.00000 -1.00000 0.00000 - 0.00000 0.00000 1.00000 - 2.00000 0.00000 0.00000 |
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要素
#1: タンパク質 | 分子量: 29221.682 Da / 分子数: 1 / 断片: GluR2-flop ligand-binding core (S1S2J) / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() | ||||||||
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#2: 化合物 | #3: 化合物 | ChemComp-CL / | #4: 化合物 | ChemComp-CE2 / | #5: 水 | ChemComp-HOH / | Has protein modification | Y | |
-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 2.4 Å3/Da / 溶媒含有率: 49 % | ||||||||||||||||||||||||||||||||||||
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結晶化 | 温度: 279 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 5.5 詳細: zinc acetate, cacodylate, PEG8000, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K | ||||||||||||||||||||||||||||||||||||
結晶化 | *PLUS 温度: 6 ℃ | ||||||||||||||||||||||||||||||||||||
溶液の組成 | *PLUS
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-データ収集
回折 | 平均測定温度: 100 K |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: MARRESEARCH / 検出器: CCD / 日付: 2001年3月14日 |
放射 | モノクロメーター: NULL. / プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 波長: 1.0835 Å / 相対比: 1 |
反射 | 解像度: 1.85→20 Å / Num. all: 23016 / Num. obs: 23016 / % possible obs: 92.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / 冗長度: 3.5 % / Biso Wilson estimate: 18.2 Å2 / Rmerge(I) obs: 0.099 / Net I/σ(I): 7 |
反射 シェル | 解像度: 1.85→1.92 Å / Rmerge(I) obs: 0.34 / Mean I/σ(I) obs: 2 / Num. unique all: 1996 / % possible all: 82.1 |
反射 | *PLUS 最低解像度: 20 Å |
反射 シェル | *PLUS % possible obs: 82.1 % / Rmerge(I) obs: 0.34 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 開始モデル: GluR2:(S)-thio-ATPA complex (Lunn et al., to be published). 解像度: 1.85→19.99 Å / Rfactor Rfree error: 0.009 / Data cutoff high rms absF: 1449707.81 / Isotropic thermal model: RESTRAINED / 交差検証法: THROUGHOUT / σ(F): 0 / 立体化学のターゲット値: Engh & Huber 詳細: The first three N-terminal residues and the last two C-terminal residues were not located in the electron density map.
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溶媒の処理 | 溶媒モデル: FLAT MODEL / Bsol: 48.7733 Å2 / ksol: 0.418009 e/Å3 | ||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 27.4 Å2
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Refine analyze |
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精密化ステップ | サイクル: LAST / 解像度: 1.85→19.99 Å
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拘束条件 |
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LS精密化 シェル | 解像度: 1.85→1.97 Å / Rfactor Rfree error: 0.029 / Total num. of bins used: 6
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Xplor file | Serial no: 1 / Param file: protein_rep.param / Topol file: protein.top | ||||||||||||||||||||||||||||||||||||
精密化 | *PLUS 最低解像度: 20 Å / % reflection Rfree: 2.7 % | ||||||||||||||||||||||||||||||||||||
溶媒の処理 | *PLUS | ||||||||||||||||||||||||||||||||||||
原子変位パラメータ | *PLUS | ||||||||||||||||||||||||||||||||||||
拘束条件 | *PLUS
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