- PDB-3g3k: Crystal structure of the GluR6 ligand binding domain dimer I442H ... -
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基本情報
登録情報
データベース: PDB / ID: 3g3k
タイトル
Crystal structure of the GluR6 ligand binding domain dimer I442H K494E K665R I749L Q753K E757Q mutant with glutamate and NaCl at 1.24 Angstrom resolution
要素
Glutamate receptor, ionotropic kainate 2
キーワード
MEMBRANE PROTEIN / Cell junction / Cell membrane / Glycoprotein / Ion transport / Ionic channel / Membrane / Postsynaptic cell membrane / Receptor / RNA editing / Synapse / Transmembrane / Transport
機能・相同性
機能・相同性情報
mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / regulation of short-term neuronal synaptic plasticity / glutamate receptor activity / negative regulation of synaptic transmission, glutamatergic / ubiquitin conjugating enzyme binding / regulation of JNK cascade ...mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / regulation of short-term neuronal synaptic plasticity / glutamate receptor activity / negative regulation of synaptic transmission, glutamatergic / ubiquitin conjugating enzyme binding / regulation of JNK cascade / inhibitory postsynaptic potential / receptor clustering / modulation of excitatory postsynaptic potential / kainate selective glutamate receptor activity / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / positive regulation of synaptic transmission / behavioral fear response / neuronal action potential / glutamate-gated receptor activity / glutamate-gated calcium ion channel activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / presynaptic modulation of chemical synaptic transmission / dendrite cytoplasm / hippocampal mossy fiber to CA3 synapse / SNARE binding / excitatory postsynaptic potential / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / regulation of long-term neuronal synaptic plasticity / postsynaptic density membrane / modulation of chemical synaptic transmission / intracellular calcium ion homeostasis / terminal bouton / positive regulation of neuron apoptotic process / presynaptic membrane / neuron apoptotic process / scaffold protein binding / perikaryon / chemical synaptic transmission / negative regulation of neuron apoptotic process / postsynaptic membrane / postsynaptic density / axon / neuronal cell body / ubiquitin protein ligase binding / synapse / dendrite / glutamatergic synapse / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能
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 ...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 II / Periplasmic binding protein-like I / D-Maltodextrin-Binding Protein; domain 2 / 3-Layer(aba) Sandwich / Alpha Beta 類似検索 - ドメイン・相同性
分子量: 29424.637 Da / 分子数: 2 / 断片: residues 429-544, 667-806 / 変異: I473H, K525E, K696R, I780L, Q784K, E788Q / 由来タイプ: 組換発現 詳細: The I442H K494E K665R I749L Q753K and E757Q mutations were created intentionall y. The 1st residue is a vector encoded affinity tag fragment. Residues 398-513 a nd 636-775 are coupled by a ...詳細: The I442H K494E K665R I749L Q753K and E757Q mutations were created intentionall y. The 1st residue is a vector encoded affinity tag fragment. Residues 398-513 a nd 636-775 are coupled by a synthetic GT peptide. The numbering is for the matur e protein after cleavage of the 31 AA signal peptide. 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: GriK2 / プラスミド: pET22B modified / 発現宿主: Escherichia coli (大腸菌) / 株 (発現宿主): OrigamiB (DE3) / 参照: UniProt: P42260
解像度: 1.24→1.28 Å / 冗長度: 2.8 % / Rmerge(I) obs: 0.282 / Mean I/σ(I) obs: 3.39 / % possible all: 86.5
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解析
ソフトウェア
名称
バージョン
分類
HKL-2000
データ収集
PHENIX
(phenix.refine)
精密化
HKL-2000
データ削減
HKL-2000
データスケーリング
精密化
構造決定の手法: フーリエ合成 / 解像度: 1.24→35.898 Å / SU ML: 0.14 / Isotropic thermal model: ISOTROPIC AND TLS / 交差検証法: THROUGHOUT / σ(F): 0 / σ(I): 0 / 立体化学のターゲット値: ML 詳細: Refinement was started with Refmac_5.2. The final rounds of refinement were performed with phenix and included occupancy refinement for ions, and for residues with alternative conformations.
Rfactor
反射数
%反射
Selection details
Rfree
0.165
7489
5.03 %
RANDOM
Rwork
0.1459
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all
0.1469
149020
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obs
0.1469
149020
98.18 %
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溶媒の処理
減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL / Bsol: 41.237 Å2 / ksol: 0.393 e/Å3