+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8g7v | |||||||||
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タイトル | Cryo-EM structure of Riplet:RIG-I:dsRNA complex (end-inter) | |||||||||
要素 |
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キーワード | Transferase/Hydrolase/RNA / ribonucleoprotein complex / RNA sensor / RIG-I like receptor / Ubiquitination / E3 ligase / TRIM family / ANTIVIRAL PROTEIN / Transferase-Hydrolase-RNA complex | |||||||||
機能・相同性 | 機能・相同性情報 RIG-I binding / free ubiquitin chain polymerization / 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 ...RIG-I binding / free ubiquitin chain polymerization / 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 / pattern recognition receptor activity / TRAF6 mediated IRF7 activation / cytoplasmic pattern recognition receptor signaling pathway / RSV-host interactions / regulation of innate immune response / cellular response to exogenous dsRNA / response to exogenous dsRNA / TRAF6 mediated NF-kB activation / protein K63-linked ubiquitination / positive regulation of interferon-alpha production / bicellular tight junction / ribonucleoprotein complex binding / antiviral innate immune response / positive regulation of defense response to virus by host / positive regulation of interferon-beta production / regulation of cell migration / positive regulation of interleukin-8 production / Negative regulators of DDX58/IFIH1 signaling / ruffle membrane / DDX58/IFIH1-mediated induction of interferon-alpha/beta / response to virus / RING-type E3 ubiquitin transferase / protein homooligomerization / Evasion by RSV of host interferon responses / ISG15 antiviral mechanism / cytoplasmic stress granule / positive regulation of interleukin-6 production / protein polyubiquitination / ubiquitin-protein transferase activity / SARS-CoV-1 activates/modulates innate immune responses / ubiquitin protein ligase activity / positive regulation of tumor necrosis factor production / double-stranded RNA binding / Ovarian tumor domain proteases / actin cytoskeleton / double-stranded DNA binding / TRAF3-dependent IRF activation pathway / gene expression / defense response to virus / RNA helicase activity / single-stranded RNA binding / Ub-specific processing proteases / protein ubiquitination / RNA helicase / ribonucleoprotein complex / innate immune response / ubiquitin protein ligase binding / positive regulation of gene expression / GTP binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / zinc ion binding / ATP binding / identical protein binding / metal ion binding / cytoplasm / cytosol 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: 3.9 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: Nat Commun / 年: 2023 タイトル: The E3 ligase Riplet promotes RIG-I signaling independent of RIG-I oligomerization. 著者: Wenshuai Wang / Benjamin Götte / Rong Guo / Anna Marie Pyle / 要旨: RIG-I is an essential innate immune receptor that responds to infection by RNA viruses. The RIG-I signaling cascade is mediated by a series of post-translational modifications, the most important of ...RIG-I is an essential innate immune receptor that responds to infection by RNA viruses. The RIG-I signaling cascade is mediated by a series of post-translational modifications, the most important of which is ubiquitination of the RIG-I Caspase Recruitment Domains (CARDs) by E3 ligase Riplet. This is required for interaction between RIG-I and its downstream adapter protein MAVS, but the mechanism of action remains unclear. Here we show that Riplet is required for RIG-I signaling in the presence of both short and long dsRNAs, establishing that Riplet activation does not depend upon RIG-I filament formation on long dsRNAs. Likewise, quantitative Riplet-RIG-I affinity measurements establish that Riplet interacts with RIG-I regardless of whether the receptor is bound to RNA. To understand this, we solved high-resolution cryo-EM structures of RIG-I/RNA/Riplet complexes, revealing molecular interfaces that control Riplet-mediated activation and enabling the formulation of a unified model for the role of Riplet in signaling. | |||||||||
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 | 8g7v.cif.gz | 341 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8g7v.ent.gz | 258.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8g7v.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 | 8g7v_validation.pdf.gz | 1.5 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8g7v_full_validation.pdf.gz | 1.5 MB | 表示 | |
XML形式データ | 8g7v_validation.xml.gz | 56.9 KB | 表示 | |
CIF形式データ | 8g7v_validation.cif.gz | 87.1 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/g7/8g7v ftp://data.pdbj.org/pub/pdb/validation_reports/g7/8g7v | HTTPS FTP |
-関連構造データ
関連構造データ | 29825MC 8g7tC 8g7uC 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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-要素
#1: タンパク質 | 分子量: 106740.555 Da / 分子数: 2 / 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, RNA helicase #2: タンパク質 | 分子量: 47946.305 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RNF135, L13 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q8IUD6, RING-type E3 ubiquitin transferase #3: RNA鎖 | | 分子量: 7885.581 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Escherichia coli (大腸菌) #4: RNA鎖 | | 分子量: 7788.551 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) #5: 化合物 | 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: Complex of RNP inter / タイプ: COMPLEX / Entity ID: #1-#4 / 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 FIELD / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 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 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 19143 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | B value: 88.73 / 空間: REAL | ||||||||||||||||||||||||
原子モデル構築 |
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拘束条件 |
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