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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 5irx | |||||||||||||||
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| タイトル | Structure of TRPV1 in complex with DkTx and RTX, determined in lipid nanodisc | |||||||||||||||
要素 |
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キーワード | TRANSPORT PROTEIN / TRP / ion channel / nanodisc / vanilloid / lipid | |||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of iodide transmembrane transport / positive regulation of membrane depolarization / negative regulation of establishment of blood-brain barrier / response to capsazepine / sensory perception of mechanical stimulus / peptide secretion / cellular response to temperature stimulus / positive regulation of sensory perception of pain / temperature-gated ion channel activity / detection of chemical stimulus involved in sensory perception of pain ...negative regulation of iodide transmembrane transport / positive regulation of membrane depolarization / negative regulation of establishment of blood-brain barrier / response to capsazepine / sensory perception of mechanical stimulus / peptide secretion / cellular response to temperature stimulus / positive regulation of sensory perception of pain / temperature-gated ion channel activity / detection of chemical stimulus involved in sensory perception of pain / positive regulation of renal sodium excretion / negative regulation of axon regeneration / TRP channels / positive regulation of cardiac muscle cell differentiation / smooth muscle contraction involved in micturition / fever generation / detection of temperature stimulus involved in thermoception / thermoception / urinary bladder smooth muscle contraction / ion channel regulator activity / response to pH / monoatomic cation transmembrane transporter activity / glutamate secretion / negative regulation of systemic arterial blood pressure / dendritic spine membrane / positive regulation of urine volume / excitatory extracellular ligand-gated monoatomic ion channel activity / negative regulation of heart rate / response to acidic pH / response to pain / diet induced thermogenesis / cellular response to alkaloid / temperature homeostasis / cellular response to cytokine stimulus / cellular response to ATP / intracellularly gated calcium channel activity / detection of temperature stimulus involved in sensory perception of pain / negative regulation of mitochondrial membrane potential / behavioral response to pain / calcium ion import across plasma membrane / positive regulation of vasoconstriction / monoatomic ion channel activity / ligand-gated monoatomic ion channel activity / monoatomic cation channel activity / cellular response to acidic pH / extracellular ligand-gated monoatomic ion channel activity / phosphatidylinositol binding / sensory perception of pain / axon terminus / positive regulation of excitatory postsynaptic potential / sarcoplasmic reticulum / lipid metabolic process / phosphoprotein binding / microglial cell activation / cellular response to nerve growth factor stimulus / response to peptide hormone / cellular response to growth factor stimulus / GABA-ergic synapse / calcium ion transmembrane transport / cellular response to tumor necrosis factor / calcium channel activity / positive regulation of nitric oxide biosynthetic process / calcium ion transport / transmembrane signaling receptor activity / cellular response to heat / sensory perception of taste / toxin activity / response to heat / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / protein homotetramerization / calmodulin binding / postsynaptic membrane / neuron projection / positive regulation of apoptotic process / external side of plasma membrane / neuronal cell body / dendrite / lipid binding / negative regulation of transcription by RNA polymerase II / extracellular region / ATP binding / membrane / metal ion binding / identical protein binding / nucleus / plasma membrane 類似検索 - 分子機能 | |||||||||||||||
| 生物種 | ![]() Haplopelma schmidti (クモ) | |||||||||||||||
| 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: 2.95 Å | |||||||||||||||
データ登録者 | Gao, Y. / Cao, E. / Julius, D. / Cheng, Y. | |||||||||||||||
| 資金援助 | 米国, 4件
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引用 | ジャーナル: Nature / 年: 2016タイトル: TRPV1 structures in nanodiscs reveal mechanisms of ligand and lipid action. 著者: Yuan Gao / Erhu Cao / David Julius / Yifan Cheng / ![]() 要旨: When integral membrane proteins are visualized in detergents or other artificial systems, an important layer of information is lost regarding lipid interactions and their effects on protein structure. ...When integral membrane proteins are visualized in detergents or other artificial systems, an important layer of information is lost regarding lipid interactions and their effects on protein structure. This is especially relevant to proteins for which lipids have both structural and regulatory roles. Here we demonstrate the power of combining electron cryo-microscopy with lipid nanodisc technology to ascertain the structure of the rat TRPV1 ion channel in a native bilayer environment. Using this approach, we determined the locations of annular and regulatory lipids and showed that specific phospholipid interactions enhance binding of a spider toxin to TRPV1 through formation of a tripartite complex. Furthermore, phosphatidylinositol lipids occupy the binding site for capsaicin and other vanilloid ligands, suggesting a mechanism whereby chemical or thermal stimuli elicit channel activation by promoting the release of bioactive lipids from a critical allosteric regulatory site. | |||||||||||||||
| 履歴 |
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 5irx.cif.gz | 334.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb5irx.ent.gz | 252 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 5irx.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ir/5irx ftp://data.pdbj.org/pub/pdb/validation_reports/ir/5irx | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 8117MC ![]() 8118C ![]() 8119C ![]() 8120C ![]() 5irzC ![]() 5is0C 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 ( |
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| 類似構造データ | |
| 電子顕微鏡画像生データ | EMPIAR-10059 (タイトル: Structure of TRPV1 in complex with DkTx and RTX, determined in lipid nanodiscData size: 93.8 Data #1: Motion corrected, dose-weighted sum of micrographs of TRPV1-DkTx/RTX embedded in lipid nanodisc [micrographs - single frame] Data #2: Raw particle image stack of TRPV1-DkTx/RTX embedded in lipid nanodisc [picked particles - multiframe - unprocessed]) |
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
-タンパク質 , 2種, 6分子 ABCDEF
| #1: タンパク質 | 分子量: 72959.297 Da / 分子数: 4 / 断片: UNP residues 110-603, 627-764 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: O35433#2: タンパク質 | 分子量: 8552.988 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Haplopelma schmidti (クモ) / プラスミド: pET19 / 発現宿主: ![]() |
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-非ポリマー , 4種, 20分子 






| #3: 化合物 | ChemComp-6O8 / ( #4: 化合物 | ChemComp-6OE / ( #5: 化合物 | ChemComp-6EU / #6: 化合物 | ChemComp-6O9 / ( |
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-詳細
| Has protein modification | Y |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| 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 |
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試料調製
| 構成要素 |
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| 由来(天然) |
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| 由来(組換発現) |
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| 緩衝液 | pH: 7.4 | ||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 0.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse. | ||||||||||||||||||||||||||||
| 試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 400 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 278 K 詳細: Blot for 6 seconds before plunging into liquid ethane (FEI VITROBOT MARK III). |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Tecnai Polara / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI POLARA 300 / 詳細: Grid screening was performed manually. |
| 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 / 倍率(公称値): 31000 X / 倍率(補正後): 41132 X / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 700 nm / Calibrated defocus min: 700 nm / 最大 デフォーカス(補正後): 2200 nm / Cs: 2 mm / C2レンズ絞り径: 30 µm / アライメント法: COMA FREE |
| 試料ホルダ | 凍結剤: NITROGEN / 試料ホルダーモデル: OTHER / 最高温度: 70 K / 最低温度: 70 K |
| 撮影 | 平均露光時間: 6 sec. / 電子線照射量: 41 e/Å2 / 検出モード: SUPER-RESOLUTION フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 1 / 実像数: 1200 詳細: Images were collected in movie mode at 5 frames per second for 6 seconds. |
| 画像スキャン | 横: 3838 / 縦: 3710 / 動画フレーム数/画像: 30 / 利用したフレーム数/画像: 1-30 |
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.10_2152: / 分類: 精密化 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| EMソフトウェア |
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| 画像処理 | 詳細: Each image stack was subjected to whole-frame motion correction followed by correction at the individual pixel level using program UcsfDfCorr. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| CTF補正 | 詳細: CTF correction was performed before classification and refinement. タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 218787 詳細: Initial manual particle picking and automatic particle picking were performed using SamViewer and several python scripts based on SPIDER. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C4 (4回回転対称) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.95 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 73929 / クラス平均像の数: 2 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: RIGID BODY FIT / 空間: REAL / Target criteria: correlation coefficient | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | PDB-ID: 3J5Q PDB chain-ID: A / Accession code: 3J5Q / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 精密化 | 最高解像度: 2.95 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 拘束条件 |
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コントローラー
万見について





Haplopelma schmidti (クモ)
米国, 4件
引用
UCSF Chimera















PDBj



Homo sapiens (ヒト)


