+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7vfs | ||||||
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タイトル | Human N-type voltage gated calcium channel CaV2.2-alpha2/delta1-beta1 complex, apo state | ||||||
要素 | (Voltage-dependent ...) x 3 | ||||||
キーワード | MEMBRANE PROTEIN / Voltage gated calcium channel / N-type / complex | ||||||
機能・相同性 | 機能・相同性情報 regulation of membrane repolarization during action potential / Presynaptic depolarization and calcium channel opening / positive regulation of high voltage-gated calcium channel activity / Phase 2 - plateau phase / calcium ion transmembrane transport via high voltage-gated calcium channel / positive regulation of muscle contraction / membrane depolarization during bundle of His cell action potential / high voltage-gated calcium channel activity / L-type voltage-gated calcium channel complex / cardiac muscle cell action potential involved in contraction ...regulation of membrane repolarization during action potential / Presynaptic depolarization and calcium channel opening / positive regulation of high voltage-gated calcium channel activity / Phase 2 - plateau phase / calcium ion transmembrane transport via high voltage-gated calcium channel / positive regulation of muscle contraction / membrane depolarization during bundle of His cell action potential / high voltage-gated calcium channel activity / L-type voltage-gated calcium channel complex / cardiac muscle cell action potential involved in contraction / NCAM1 interactions / regulation of ventricular cardiac muscle cell membrane repolarization / calcium ion transport into cytosol / regulation of calcium ion transmembrane transport via high voltage-gated calcium channel / voltage-gated calcium channel complex / neuromuscular junction development / calcium ion import across plasma membrane / Phase 0 - rapid depolarisation / neuronal dense core vesicle / regulation of heart rate by cardiac conduction / response to amyloid-beta / regulation of calcium ion transport / voltage-gated calcium channel activity / T-tubule / sarcoplasmic reticulum / calcium ion transmembrane transport / modulation of chemical synaptic transmission / cellular response to amyloid-beta / calcium ion transport / amyloid-beta binding / chemical synaptic transmission / neuronal cell body / calcium ion binding / synapse / extracellular exosome / ATP binding / metal ion binding / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
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: 2.8 Å | ||||||
データ登録者 | Dong, Y. / Gao, Y. / Wang, Y. / Zhao, Y. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Rep / 年: 2021 タイトル: Closed-state inactivation and pore-blocker modulation mechanisms of human Ca2.2. 著者: Yanli Dong / Yiwei Gao / Shuai Xu / Yuhang Wang / Zhuoya Yu / Yue Li / Bin Li / Tian Yuan / Bei Yang / Xuejun Cai Zhang / Daohua Jiang / Zhuo Huang / Yan Zhao / 要旨: N-type voltage-gated calcium (Ca) channels mediate Ca influx at presynaptic terminals in response to action potentials and play vital roles in synaptogenesis, release of neurotransmitters, and ...N-type voltage-gated calcium (Ca) channels mediate Ca influx at presynaptic terminals in response to action potentials and play vital roles in synaptogenesis, release of neurotransmitters, and nociceptive transmission. Here, we elucidate a cryo-electron microscopy (cryo-EM) structure of the human Ca2.2 complex in apo, ziconotide-bound, and two Ca2.2-specific pore blockers-bound states. The second voltage-sensing domain (VSD) is captured in a resting-state conformation, trapped by a phosphatidylinositol 4,5-bisphosphate (PIP) molecule, which is distinct from the other three VSDs of Ca2.2, as well as activated VSDs observed in previous structures of Ca channels. This structure reveals the molecular basis for the unique inactivation process of Ca2.2 channels, in which the intracellular gate formed by S6 helices is closed and a W-helix from the domain II-III linker stabilizes closed-state inactivation. The structures of this inactivated, drug-bound complex lay a solid foundation for developing new state-dependent blockers for treatment of chronic pain. | ||||||
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 | 7vfs.cif.gz | 483.6 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7vfs.ent.gz | 370.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7vfs.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 | 7vfs_validation.pdf.gz | 1.6 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7vfs_full_validation.pdf.gz | 1.7 MB | 表示 | |
XML形式データ | 7vfs_validation.xml.gz | 72 KB | 表示 | |
CIF形式データ | 7vfs_validation.cif.gz | 106.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/vf/7vfs ftp://data.pdbj.org/pub/pdb/validation_reports/vf/7vfs | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Voltage-dependent ... , 3種, 3分子 ABD
#1: タンパク質 | 分子量: 262831.781 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CACNA1B, CACH5, CACNL1A5 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q00975 |
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#2: タンパク質 | 分子量: 124692.469 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CACNA2D1, CACNL2A, CCHL2A, MHS3 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P54289 |
#3: タンパク質 | 分子量: 65799.594 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CACNB1, CACNLB1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q02641 |
-糖 , 3種, 11分子
#4: 多糖 | #5: 多糖 | beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #10: 糖 | ChemComp-NAG / |
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-非ポリマー , 4種, 24分子
#6: 化合物 | ChemComp-R16 / #7: 化合物 | #8: 化合物 | ChemComp-PT5 / [( | #9: 化合物 | |
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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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Has protein modification | Y |
-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: CaV2.2-alpha2delta1-beta1 complex / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 7.5 |
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 |
-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: 9.6 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) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 253920 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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