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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: 8ik0 | ||||||
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タイトル | Cryo-EM structure of Stimulator of interferon genes | ||||||
![]() | Stimulator of interferon genes protein,Immune protein Tsi3 | ||||||
![]() | IMMUNE SYSTEM / adaptor protein | ||||||
機能・相同性 | ![]() STING mediated induction of host immune responses / 2',3'-cyclic GMP-AMP binding / cyclic-di-GMP binding / proton channel activity / cGAS/STING signaling pathway / reticulophagy / protein complex oligomerization / positive regulation of macroautophagy / autophagosome membrane / autophagosome assembly ...STING mediated induction of host immune responses / 2',3'-cyclic GMP-AMP binding / cyclic-di-GMP binding / proton channel activity / cGAS/STING signaling pathway / reticulophagy / protein complex oligomerization / positive regulation of macroautophagy / autophagosome membrane / autophagosome assembly / positive regulation of type I interferon production / endoplasmic reticulum-Golgi intermediate compartment membrane / activation of innate immune response / autophagosome / positive regulation of interferon-beta production / Neutrophil degranulation / cytoplasmic vesicle / defense response to virus / Golgi membrane / innate immune response / endoplasmic reticulum membrane / perinuclear region of cytoplasm / protein homodimerization activity / metal ion binding / cytoplasm 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: 3.3 Å | ||||||
![]() | Lu, D.F. / Shang, G.J. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: The mechanism of STING autoinhibition and activation. 著者: Sheng Liu / Bo Yang / Yingxiang Hou / Kaige Cui / Xiaozhu Yang / Xiaoxiong Li / Lianwan Chen / Shichao Liu / Zhichao Zhang / Yuanyuan Jia / Yufeng Xie / Ying Xue / Xiaomei Li / Bingxue Yan / ...著者: Sheng Liu / Bo Yang / Yingxiang Hou / Kaige Cui / Xiaozhu Yang / Xiaoxiong Li / Lianwan Chen / Shichao Liu / Zhichao Zhang / Yuanyuan Jia / Yufeng Xie / Ying Xue / Xiaomei Li / Bingxue Yan / Changxin Wu / Wen Deng / Jianxun Qi / Defen Lu / George F Gao / Peiyi Wang / Guijun Shang / ![]() 要旨: 2',3'-cGAMP, produced by the DNA sensor cGAS, activates stimulator of interferon genes (STING) and triggers immune response during infection. Tremendous effort has been placed on unraveling the ...2',3'-cGAMP, produced by the DNA sensor cGAS, activates stimulator of interferon genes (STING) and triggers immune response during infection. Tremendous effort has been placed on unraveling the mechanism of STING activation. However, little is known about STING inhibition. Here, we found that apo-STING exhibits a bilayer with head-to-head as well as side-by-side packing, mediated by its ligand-binding domain (LBD). This type of assembly holds two endoplasmic reticulum (ER) membranes together not only to prevent STING ER exit but also to eliminate the recruitment of TBK1, representing the autoinhibited state of STING. Additionally, we obtained the filament structure of the STING/2',3'-cGAMP complex, which adopts a bent monolayer assembly mediated by LBD and transmembrane domain (TMD). The active, curved STING polymer could deform ER membrane to support its ER exit and anterograde transportation. Our data together provide a panoramic vision regarding STING autoinhibition and activation, which adds substantially to current understanding of the cGAS-STING pathway. | ||||||
履歴 |
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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 | ![]() | 446.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 360.5 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 | ![]() 35503MC ![]() 8ik3C 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 | 類似検索 - 機能・相同性 ![]() |
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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: 55282.332 Da / 分子数: 8 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: STING1, STING, TMEM173, tsi3, PA3485 / 発現宿主: ![]() |
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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: FILAMENT / 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: fiber of adaptor protein / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 詳細: 20mM HEPES, 150mM NaCl, 1mM TCEP, 0.03% DDM/CHS(5:1) |
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: 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: ![]() |
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): 1200 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1057869 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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