+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7l2u | ||||||||||||||||||
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タイトル | cryo-EM structure of DkTx-bound minimal TRPV1 in open state | ||||||||||||||||||
要素 |
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キーワード | TRANSPORT PROTEIN / TRP channel / cryo-EM / nanodisc / toxin | ||||||||||||||||||
機能・相同性 | 機能・相同性情報 temperature-gated ion channel activity / response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / urinary bladder smooth muscle contraction / detection of chemical stimulus involved in sensory perception of pain / smooth muscle contraction involved in micturition / TRP channels / cellular response to temperature stimulus ...temperature-gated ion channel activity / response to capsazepine / negative regulation of establishment of blood-brain barrier / sensory perception of mechanical stimulus / peptide secretion / urinary bladder smooth muscle contraction / detection of chemical stimulus involved in sensory perception of pain / smooth muscle contraction involved in micturition / TRP channels / cellular response to temperature stimulus / cellular response to acidic pH / fever generation / detection of temperature stimulus involved in thermoception / thermoception / ion channel regulator activity / negative regulation of systemic arterial blood pressure / glutamate secretion / chloride channel regulator activity / response to pH / dendritic spine membrane / monoatomic cation transmembrane transporter activity / excitatory extracellular ligand-gated monoatomic ion channel activity / negative regulation of heart rate / cellular response to ATP / temperature homeostasis / response to pain / cellular response to alkaloid / calcium ion import across plasma membrane / behavioral response to pain / diet induced thermogenesis / cellular response to cytokine stimulus / detection of temperature stimulus involved in sensory perception of pain / intracellularly gated calcium channel activity / negative regulation of mitochondrial membrane potential / ligand-gated monoatomic ion channel activity / extracellular ligand-gated monoatomic ion channel activity / monoatomic cation channel activity / GABA-ergic synapse / sensory perception of pain / phosphatidylinositol binding / cellular response to nerve growth factor stimulus / phosphoprotein binding / calcium ion transmembrane transport / microglial cell activation / calcium channel activity / lipid metabolic process / cellular response to growth factor stimulus / response to peptide hormone / calcium ion transport / positive regulation of nitric oxide biosynthetic process / transmembrane signaling receptor activity / cellular response to tumor necrosis factor / cellular response to heat / positive regulation of cytosolic calcium ion concentration / response to heat / monoatomic ion transmembrane transport / toxin activity / postsynaptic membrane / protein homotetramerization / calmodulin binding / neuron projection / positive regulation of apoptotic process / external side of plasma membrane / neuronal cell body / lipid binding / dendrite / negative regulation of transcription by RNA polymerase II / extracellular region / ATP binding / identical protein binding / membrane / metal ion binding / plasma membrane 類似検索 - 分子機能 | ||||||||||||||||||
生物種 | Rattus norvegicus (ドブネズミ) Cyriopagopus 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: 3.47 Å | ||||||||||||||||||
データ登録者 | Zhang, K. / Julius, D. / Cheng, Y. | ||||||||||||||||||
資金援助 | フランス, 米国, 5件
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引用 | ジャーナル: Cell / 年: 2021 タイトル: Structural snapshots of TRPV1 reveal mechanism of polymodal functionality. 著者: Kaihua Zhang / David Julius / Yifan Cheng / 要旨: Many transient receptor potential (TRP) channels respond to diverse stimuli and conditionally conduct small and large cations. Such functional plasticity is presumably enabled by a uniquely dynamic ...Many transient receptor potential (TRP) channels respond to diverse stimuli and conditionally conduct small and large cations. Such functional plasticity is presumably enabled by a uniquely dynamic ion selectivity filter that is regulated by physiological agents. What is currently missing is a "photo series" of intermediate structural states that directly address this hypothesis and reveal specific mechanisms behind such dynamic channel regulation. Here, we exploit cryoelectron microscopy (cryo-EM) to visualize conformational transitions of the capsaicin receptor, TRPV1, as a model to understand how dynamic transitions of the selectivity filter in response to algogenic agents, including protons, vanilloid agonists, and peptide toxins, permit permeation by small and large organic cations. These structures also reveal mechanisms governing ligand binding substates, as well as allosteric coupling between key sites that are proximal to the selectivity filter and cytoplasmic gate. These insights suggest a general framework for understanding how TRP channels function as polymodal signal integrators. | ||||||||||||||||||
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: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7l2u.cif.gz | 408.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7l2u.ent.gz | 345.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7l2u.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 | 7l2u_validation.pdf.gz | 1.6 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7l2u_full_validation.pdf.gz | 1.6 MB | 表示 | |
XML形式データ | 7l2u_validation.xml.gz | 73.1 KB | 表示 | |
CIF形式データ | 7l2u_validation.cif.gz | 108.4 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/l2/7l2u ftp://data.pdbj.org/pub/pdb/validation_reports/l2/7l2u | HTTPS FTP |
-関連構造データ
関連構造データ | 23141MC 7l2hC 7l2iC 7l2jC 7l2kC 7l2lC 7l2mC 7l2nC 7l2oC 7l2pC 7l2rC 7l2sC 7l2tC 7l2vC 7l2wC 7l2xC 7mz5C 7mz6C 7mz7C 7mz9C 7mzaC 7mzbC 7mzcC 7mzdC 7mzeC 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) |
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類似構造データ |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-タンパク質 , 2種, 6分子 ABCDFE
#1: タンパク質 | 分子量: 73016.352 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: Trpv1, Vr1, Vr1l / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O35433 #2: タンパク質 | 分子量: 8684.185 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Cyriopagopus schmidti (クモ) 発現宿主: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (大腸菌) 参照: UniProt: P0CH43 |
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-非ポリマー , 4種, 20分子
#3: 化合物 | ChemComp-XJ7 / ( #4: 化合物 | ChemComp-XKP / ( #5: 化合物 | #6: 水 | ChemComp-HOH / | |
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-詳細
研究の焦点であるリガンドがあるか | 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 |
-試料調製
構成要素 | 名称: minimal TRPV1 in nanodisc / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT | ||||||||||||
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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 | ||||||||||||
試料 | 包埋: YES / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||
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: Quantifoil R1.2/1.3 | ||||||||||||
EM embedding | Material: nanodisc | ||||||||||||
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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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 | 電子線照射量: 67 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
CTF補正 | タイプ: NONE |
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3次元再構成 | 解像度: 3.47 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 44530 / 対称性のタイプ: POINT |