+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8dvr | |||||||||
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タイトル | Cryo-EM structure of RIG-I bound to the end of p3SLR30 (+AMPPNP) | |||||||||
要素 |
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キーワード | Hydrolase/RNA / ribonucleoprotein complex (核タンパク質) / RNA sensor / RIG-I like receptor / Hydrolase-RNA complex | |||||||||
機能・相同性 | 機能・相同性情報 regulation of type III interferon production / RIG-I signaling pathway / positive regulation of myeloid dendritic cell cytokine production / OAS antiviral response / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / positive regulation of response to cytokine stimulus / positive regulation of granulocyte macrophage colony-stimulating factor production / RSV-host interactions / pattern recognition receptor activity ...regulation of type III interferon production / RIG-I signaling pathway / positive regulation of myeloid dendritic cell cytokine production / OAS antiviral response / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / positive regulation of response to cytokine stimulus / positive regulation of granulocyte macrophage colony-stimulating factor production / RSV-host interactions / pattern recognition receptor activity / TRAF6 mediated IRF7 activation / cytoplasmic pattern recognition receptor signaling pathway / cellular response to exogenous dsRNA / response to exogenous dsRNA / antiviral innate immune response / TRAF6 mediated NF-kB activation / positive regulation of interferon-alpha production / bicellular tight junction / regulation of cell migration / positive regulation of defense response to virus by host / positive regulation of interferon-beta production / Evasion by RSV of host interferon responses / Negative regulators of DDX58/IFIH1 signaling / positive regulation of interleukin-8 production / response to virus / DDX58/IFIH1-mediated induction of interferon-alpha/beta / ISG15 antiviral mechanism / ruffle membrane / positive regulation of interleukin-6 production / SARS-CoV-1 activates/modulates innate immune responses / positive regulation of tumor necrosis factor production / double-stranded RNA binding / Ovarian tumor domain proteases / マイクロフィラメント / TRAF3-dependent IRF activation pathway / 遺伝子発現 / double-stranded DNA binding / defense response to virus / RNA helicase activity / single-stranded RNA binding / Ub-specific processing proteases / ヘリカーゼ / ribonucleoprotein complex / 自然免疫系 / ubiquitin protein ligase binding / positive regulation of gene expression / GTP binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / ATP hydrolysis activity / positive regulation of transcription by RNA polymerase II / zinc ion binding / ATP binding / identical protein binding / 細胞質基質 / 細胞質 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: 3.3 Å | |||||||||
データ登録者 | Wang, W. / Pyle, A.M. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Mol Cell / 年: 2022 タイトル: The RIG-I receptor adopts two different conformations for distinguishing host from viral RNA ligands. 著者: Wenshuai Wang / Anna Marie Pyle / 要旨: RIG-I is an essential innate immune receptor for detecting and responding to infection by RNA viruses. RIG-I specifically recognizes the unique molecular features of viral RNA molecules and ...RIG-I is an essential innate immune receptor for detecting and responding to infection by RNA viruses. RIG-I specifically recognizes the unique molecular features of viral RNA molecules and selectively distinguishes them from closely related RNAs abundant in host cells. The physical basis for this exquisite selectivity is revealed through a series of high-resolution cryo-EM structures of RIG-I in complex with host and viral RNA ligands. These studies demonstrate that RIG-I actively samples double-stranded RNAs in the cytoplasm and distinguishes them by adopting two different types of protein folds. Upon binding viral RNA, RIG-I adopts a high-affinity conformation that is conducive to signaling, while host RNA induces an autoinhibited conformation that stimulates RNA release. By coupling protein folding with RNA binding selectivity, RIG-I distinguishes RNA molecules that differ by as little as one phosphate group, thereby explaining the molecular basis for selective antiviral sensing and the induction of autoimmunity upon RIG-I dysregulation. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8dvr.cif.gz | 145.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8dvr.ent.gz | 104.9 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8dvr.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/dv/8dvr ftp://data.pdbj.org/pub/pdb/validation_reports/dv/8dvr | HTTPS FTP |
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-関連構造データ
関連構造データ | 27743MC 7tnxC 7tnyC 7tnzC 7to0C 7to1C 7to2C 8dvsC 8dvuC 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 | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 106740.555 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: DDX58 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: O95786, ヘリカーゼ |
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#2: RNA鎖 | 分子量: 19513.580 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) |
#3: 化合物 | ChemComp-ZN / |
#4: 化合物 | ChemComp-GTP / |
研究の焦点であるリガンドがあるか | 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: Complex of RIG-I with p3SLR30 with AMPPNP addition / タイプ: COMPLEX / Entity ID: #2 / 由来: RECOMBINANT |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Escherichia coli (大腸菌) |
緩衝液 | pH: 7.4 |
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 FIELDBright-field microscopy / 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) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.17.1_3660: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
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: 692833 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | B value: 157.95 | ||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7TO1 Accession code: 7TO1 / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||
拘束条件 |
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