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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: 9ogk | ||||||
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タイトル | Refinement of PDB-3J5R against EMD-8117 using EMAN2 | ||||||
![]() | Transient receptor potential cation channel subfamily V member 1 | ||||||
![]() | MEMBRANE PROTEIN / TRPV1 | ||||||
機能・相同性 | ![]() response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / excitatory extracellular ligand-gated monoatomic ion channel activity / temperature-gated ion channel activity / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain / urinary bladder smooth muscle contraction / TRP channels ...response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / excitatory extracellular ligand-gated monoatomic ion channel activity / temperature-gated ion channel activity / cellular response to temperature stimulus / detection of chemical stimulus involved in sensory perception of pain / urinary bladder smooth muscle contraction / TRP channels / smooth muscle contraction involved in micturition / fever generation / thermoception / detection of temperature stimulus involved in thermoception / cellular response to acidic pH / response to pH / negative regulation of systemic arterial blood pressure / dendritic spine membrane / chloride channel regulator activity / glutamate secretion / monoatomic cation transmembrane transporter activity / negative regulation of heart rate / ligand-gated monoatomic ion channel activity / cellular response to ATP / response to pain / temperature homeostasis / cellular response to alkaloid / diet induced thermogenesis / cellular response to cytokine stimulus / intracellularly gated calcium channel activity / behavioral response to pain / detection of temperature stimulus involved in sensory perception of pain / negative regulation of mitochondrial membrane potential / calcium ion import across plasma membrane / monoatomic cation channel activity / extracellular ligand-gated monoatomic ion channel activity / sensory perception of pain / phosphatidylinositol binding / GABA-ergic synapse / phosphoprotein binding / microglial cell activation / cellular response to nerve growth factor stimulus / cellular response to growth factor stimulus / calcium ion transmembrane transport / calcium channel activity / response to peptide hormone / lipid metabolic process / calcium ion transport / positive regulation of nitric oxide biosynthetic process / transmembrane signaling receptor activity / cellular response to tumor necrosis factor / sensory perception of taste / cellular response to heat / response to heat / positive regulation of cytosolic calcium ion concentration / monoatomic ion transmembrane transport / protein homotetramerization / postsynaptic membrane / calmodulin binding / neuron projection / positive regulation of apoptotic process / external side of plasma membrane / neuronal cell body / dendrite / negative regulation of transcription by RNA polymerase II / ATP binding / metal ion binding / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
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: 4.2 Å | ||||||
![]() | Chen, M. | ||||||
資金援助 | ![]()
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![]() | ![]() 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. #1: ジャーナル: bioRxiv / 年: 2024 タイトル: Building molecular model series from heterogeneous CryoEM structures using Gaussian mixture models and deep neural networks. 著者: Muyuan Chen / ![]() 要旨: Cryogenic electron microscopy (CryoEM) produces structures of macromolecules at near-atomic resolution. However, building molecular models with good stereochemical geometry from those structures can ...Cryogenic electron microscopy (CryoEM) produces structures of macromolecules at near-atomic resolution. However, building molecular models with good stereochemical geometry from those structures can be challenging and time-consuming, especially when many structures are obtained from datasets with conformational heterogeneity. Here we present a model refinement protocol that automatically generates series of molecular models from CryoEM datasets, which describe the dynamics of the macromolecular system and have near-perfect geometry scores. | ||||||
履歴 |
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Remark 0 | THIS ENTRY 9OGK CONTAINS A STRUCTURAL MODEL FIT TO AN ELECTRON MICROSCOPY MAP EMD-8117 DETERMINED ...THIS ENTRY 9OGK CONTAINS A STRUCTURAL MODEL FIT TO AN ELECTRON MICROSCOPY MAP EMD-8117 DETERMINED ORIGINALLY BY AUTHORS: Gao, Y., Cao, E., Julius, D., Cheng, Y. |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 419.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 320.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 8117M M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
電子顕微鏡画像生データ | ![]() Data 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]) |
実験データセット #1 | データ参照: ![]() |
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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
#1: タンパク質 | 分子量: 95055.898 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() Has protein modification | N | |
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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 | 名称: Reconstruction of TRPV1 ion channel in complex with capsaicin by single particle cryo-microscopy タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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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 |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 21 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||
対称性 | 点対称性: C4 (4回回転対称) | ||||||||||||
3次元再構成 | 解像度: 4.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 33238 / 対称性のタイプ: POINT | ||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||
原子モデル構築 | PDB-ID: 3J5R Accession code: 3J5R / 詳細: refine starting from pdb / Source name: PDB / タイプ: experimental model |