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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: 7sx4 | ||||||
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| タイトル | Human NALCN-FAM155A-UNC79-UNC80 channelosome with CaM bound, conformation 2/2 | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / ion channel / calmodulin / HEAT repeat protein | ||||||
| 機能・相同性 | 機能・相同性情報monoatomic cation homeostasis / regulation of neuronal action potential / leak channel activity / regulation of resting membrane potential / positive regulation of synaptic transmission, GABAergic / cation channel complex / positive regulation of synaptic transmission, cholinergic / CaM pathway / Cam-PDE 1 activation / voltage-gated sodium channel activity ...monoatomic cation homeostasis / regulation of neuronal action potential / leak channel activity / regulation of resting membrane potential / positive regulation of synaptic transmission, GABAergic / cation channel complex / positive regulation of synaptic transmission, cholinergic / CaM pathway / Cam-PDE 1 activation / voltage-gated sodium channel activity / Sodium/Calcium exchangers / Calmodulin induced events / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / PKA activation / CaMK IV-mediated phosphorylation of CREB / monoatomic ion channel complex / CASP4 inflammasome assembly / Glycogen breakdown (glycogenolysis) / negative regulation of ryanodine-sensitive calcium-release channel activity / Activation of RAC1 downstream of NMDARs / organelle localization by membrane tethering / CLEC7A (Dectin-1) induces NFAT activation / : / negative regulation of high voltage-gated calcium channel activity / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of cardiac muscle cell action potential / presynaptic endocytosis / Synthesis of IP3 and IP4 in the cytosol / sodium channel activity / Phase 0 - rapid depolarisation / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / calcineurin-mediated signaling / RHO GTPases activate PAKs / regulation of cell communication by electrical coupling involved in cardiac conduction / calcium ion import across plasma membrane / Uptake and function of anthrax toxins / Ion transport by P-type ATPases / protein phosphatase activator activity / Long-term potentiation / Calcineurin activates NFAT / regulation of ryanodine-sensitive calcium-release channel activity / catalytic complex / Regulation of MECP2 expression and activity / DARPP-32 events / Smooth Muscle Contraction / detection of calcium ion / regulation of cardiac muscle contraction / cellular response to interferon-beta / RHO GTPases activate IQGAPs / calcium channel inhibitor activity / monoatomic cation channel activity / presynaptic cytosol / Activation of AMPK downstream of NMDARs / eNOS activation / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / regulation of heart rate / Protein methylation / titin binding / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / voltage-gated potassium channel complex / calcium channel complex / FCERI mediated Ca+2 mobilization / substantia nigra development / FCGR3A-mediated IL10 synthesis / potassium ion transmembrane transport / protein serine/threonine kinase activator activity / sperm midpiece / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / calyx of Held / Ras activation upon Ca2+ influx through NMDA receptor / positive regulation of receptor signaling pathway via JAK-STAT / adenylate cyclase activator activity / bioluminescence / VEGFR2 mediated vascular permeability / VEGFR2 mediated cell proliferation / regulation of cytokinesis / spindle microtubule / sarcomere / sodium ion transmembrane transport / Translocation of SLC2A4 (GLUT4) to the plasma membrane / calcium channel regulator activity / generation of precursor metabolites and energy / myelin sheath / cellular response to type II interferon / Transcriptional activation of mitochondrial biogenesis / long-term synaptic potentiation / Enterobacterial factors antagonize host defense / response to calcium ion / RAF activation / Stimuli-sensing channels / calcium ion transmembrane transport / spindle pole 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: 3.5 Å | ||||||
データ登録者 | Kschonsak, M. / Chua, H.C. / Weidling, C. / Chakouri, N. / Noland, C.L. / Schott, K. / Chang, T. / Tam, C. / Patel, N. / Arthur, C.P. ...Kschonsak, M. / Chua, H.C. / Weidling, C. / Chakouri, N. / Noland, C.L. / Schott, K. / Chang, T. / Tam, C. / Patel, N. / Arthur, C.P. / Leitner, A. / Ben-Johny, M. / Ciferri, C. / Pless, S.A. / Payandeh, J. | ||||||
| 資金援助 | 1件
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引用 | ジャーナル: Nature / 年: 2022タイトル: Structural architecture of the human NALCN channelosome. 著者: Marc Kschonsak / Han Chow Chua / Claudia Weidling / Nourdine Chakouri / Cameron L Noland / Katharina Schott / Timothy Chang / Christine Tam / Nidhi Patel / Christopher P Arthur / Alexander ...著者: Marc Kschonsak / Han Chow Chua / Claudia Weidling / Nourdine Chakouri / Cameron L Noland / Katharina Schott / Timothy Chang / Christine Tam / Nidhi Patel / Christopher P Arthur / Alexander Leitner / Manu Ben-Johny / Claudio Ciferri / Stephan Alexander Pless / Jian Payandeh / ![]() 要旨: Depolarizing sodium (Na) leak currents carried by the NALCN channel regulate the resting membrane potential of many neurons to modulate respiration, circadian rhythm, locomotion and pain sensitivity. ...Depolarizing sodium (Na) leak currents carried by the NALCN channel regulate the resting membrane potential of many neurons to modulate respiration, circadian rhythm, locomotion and pain sensitivity. NALCN requires FAM155A, UNC79 and UNC80 to function, but the role of these auxiliary subunits is not understood. NALCN, UNC79 and UNC80 are essential in rodents, and mutations in human NALCN and UNC80 cause severe developmental and neurological disease. Here we determined the structure of the NALCN channelosome, an approximately 1-MDa complex, as fundamental aspects about the composition, assembly and gating of this channelosome remain obscure. UNC79 and UNC80 are massive HEAT-repeat proteins that form an intertwined anti-parallel superhelical assembly, which docks intracellularly onto the NALCN-FAM155A pore-forming subcomplex. Calmodulin copurifies bound to the carboxy-terminal domain of NALCN, identifying this region as a putative modulatory hub. Single-channel analyses uncovered a low open probability for the wild-type complex, highlighting the tightly closed S6 gate in the structure, and providing a basis to interpret the altered gating properties of disease-causing variants. Key constraints between the UNC79-UNC80 subcomplex and the NALCN DI-DII and DII-DIII linkers were identified, leading to a model of channelosome gating. Our results provide a structural blueprint to understand the physiology of the NALCN channelosome and a template for drug discovery to modulate the resting membrane potential. | ||||||
| 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 | 7sx4.cif.gz | 906.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7sx4.ent.gz | 687.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7sx4.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/sx/7sx4 ftp://data.pdbj.org/pub/pdb/validation_reports/sx/7sx4 | HTTPS FTP |
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-関連構造データ
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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 , 5種, 5分子 ABCDE
| #1: タンパク質 | 分子量: 234128.797 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: NALCN, VGCNL1, eGFP / 細胞株 (発現宿主): Expi293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8IZF0, UniProt: A0A7G8ZY66 |
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| #2: タンパク質 | 分子量: 54205.004 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: FAM155A / 細胞株 (発現宿主): Expi293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: B1AL88 |
| #3: タンパク質 | 分子量: 16852.545 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: CALM1, CALM, CAM, CAM1 / 細胞株 (発現宿主): Expi293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P0DP23 |
| #4: タンパク質 | 分子量: 285174.938 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: UNC79, UNC79, KIAA1409 / 細胞株 (発現宿主): Expi293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9P2D8 |
| #5: タンパク質 | 分子量: 366510.594 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: UNC80, C2orf21, KIAA1843 / 細胞株 (発現宿主): Expi293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8N2C7 |
-糖 , 1種, 2分子 
| #6: 糖 |
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-非ポリマー , 3種, 5分子 




| #7: 化合物 | ChemComp-PEV / ( |
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| #8: 化合物 | ChemComp-PGV / ( |
| #9: 化合物 |
-詳細
| 研究の焦点であるリガンドがあるか | N |
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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 |
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試料調製
| 構成要素 | 名称: Pentameric complex of the leak channel NALCN with FAM155A, Calmodulin, UNC79 and UNC80 タイプ: COMPLEX 詳細: Calmodulin was not overexpressed but co-purified from Expi293 cells Entity ID: #1-#5 / 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) / 株: Expi293 | |||||||||||||||
| 緩衝液 | pH: 7.5 | |||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 1.65 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: NALCN was reconstituted into lipid nanodiscs and mildly crosslinkned with 0.05% EM grade glutaraldehyde for 10 min at room temperature. Cross-linking was quenched with 9 mM Tris pH 7.5 | |||||||||||||||
| 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: UltrAuFoil R0.6/1 | |||||||||||||||
| 急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K / 詳細: 3.5 sec blotting |
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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 / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 500 nm / Cs: 2.7 mm |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 平均露光時間: 3 sec. / 電子線照射量: 64.009 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 2 / 実像数: 26550 |
| 電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
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解析
| EMソフトウェア |
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| CTF補正 | 詳細: selected micrographs with a CTF fit of 10.0 A or better タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 3048401 | ||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 56037 / クラス平均像の数: 1 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
引用

UCSF Chimera







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