+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8i9j | ||||||
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タイトル | The PKR and E3L complex | ||||||
要素 |
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キーワード | VIRAL PROTEIN/TRANSFERASE / E3L / PKR / Vaccinia Virus / VIRAL PROTEIN-TRANSFERASE complex | ||||||
機能・相同性 | 機能・相同性情報 regulation of NLRP3 inflammasome complex assembly / Inhibition of PKR / double-stranded RNA adenosine deaminase activity / eukaryotic translation initiation factor 2alpha kinase activity / response to interferon-alpha / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF7 activity / suppression by virus of host type I interferon production / negative regulation of osteoblast proliferation / symbiont-mediated suppression of host PKR/eIFalpha signaling / symbiont-mediated perturbation of host apoptosis ...regulation of NLRP3 inflammasome complex assembly / Inhibition of PKR / double-stranded RNA adenosine deaminase activity / eukaryotic translation initiation factor 2alpha kinase activity / response to interferon-alpha / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF7 activity / suppression by virus of host type I interferon production / negative regulation of osteoblast proliferation / symbiont-mediated suppression of host PKR/eIFalpha signaling / symbiont-mediated perturbation of host apoptosis / regulation of hematopoietic progenitor cell differentiation / symbiont-mediated suppression of host apoptosis / positive regulation of stress-activated MAPK cascade / protein phosphatase regulator activity / evasion of host immune response / SUMOylation of immune response proteins / regulation of hematopoietic stem cell differentiation / regulation of hematopoietic stem cell proliferation / protein serine/threonine kinase inhibitor activity / negative regulation of viral genome replication / positive regulation of chemokine production / endoplasmic reticulum unfolded protein response / antiviral innate immune response / protein sequestering activity / cellular response to amino acid starvation / positive regulation of cytokine production / non-specific protein-tyrosine kinase / non-membrane spanning protein tyrosine kinase activity / response to virus / PKR-mediated signaling / Evasion by RSV of host interferon responses / ISG15 antiviral mechanism / positive regulation of non-canonical NF-kappaB signal transduction / double-stranded RNA binding / Interferon alpha/beta signaling / positive regulation of NF-kappaB transcription factor activity / kinase activity / symbiont-mediated suppression of host ISG15-protein conjugation / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / defense response to virus / protein autophosphorylation / positive regulation of MAPK cascade / negative regulation of translation / non-specific serine/threonine protein kinase / protein kinase activity / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / ribosome / protein phosphorylation / translation / negative regulation of cell population proliferation / protein serine kinase activity / protein serine/threonine kinase activity / negative regulation of apoptotic process / perinuclear region of cytoplasm / RNA binding / nucleoplasm / ATP binding / identical protein binding / membrane / nucleus / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Vaccinia virus WR (ウイルス) 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: 6.39 Å | ||||||
データ登録者 | Han, C.W. / Kim, H.J. | ||||||
資金援助 | 1件
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引用 | ジャーナル: Biochem Biophys Res Commun / 年: 2023 タイトル: Structural study of novel vaccinia virus E3L and dsRNA-dependent protein kinase complex. 著者: Hyeon Jin Kim / Chang Woo Han / Mi Suk Jeong / Se Bok Jang / 要旨: E3L (RNA-binding protein E3) is one of the key IFN resistance genes encoded by VV and consists of 190 amino acids with a highly conserved carboxy-terminal double-stranded RNA-binding domain (dsRBD). ...E3L (RNA-binding protein E3) is one of the key IFN resistance genes encoded by VV and consists of 190 amino acids with a highly conserved carboxy-terminal double-stranded RNA-binding domain (dsRBD). PKR (dsRNA-dependent protein kinase) is an IFN-induced protein involved in anti-cell and antiviral activity. PKR inhibits the initiation of translation through alpha subunit of the initiation factor eIF2 (eIF2α) and mediates several transcription factors such as NF-κB, p53 or STATs. Activated PKR also induces apoptosis in vaccinia virus infection. E3L is required for viral IFN resistance and directly binds to PKR to block activation of PKR. In this work, we determined the three-dimensional complex structure of E3L and PKR using cryo-EM and determined the important residues involved in the interaction. In addition, PKR peptide binds to E3L and can increase protein levels of phosphorus-PKR and phosphorus-eIF2α-induced cell apoptosis through upregulation of phosphorus-PKR in HEK293 cells. Taken together, structural insights into E3L and PKR will provide a new optimization and development of vaccinia virus drugs. | ||||||
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 | 8i9j.cif.gz | 107.3 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8i9j.ent.gz | 81.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8i9j.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 | 8i9j_validation.pdf.gz | 924 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8i9j_full_validation.pdf.gz | 948.8 KB | 表示 | |
XML形式データ | 8i9j_validation.xml.gz | 29.8 KB | 表示 | |
CIF形式データ | 8i9j_validation.cif.gz | 42.3 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/i9/8i9j ftp://data.pdbj.org/pub/pdb/validation_reports/i9/8i9j | HTTPS FTP |
-関連構造データ
関連構造データ | 35274MC 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: 7041.031 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Vaccinia virus WR (ウイルス) / 株: Western Reserve / 遺伝子: VACWR059, E3L / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P21605 |
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#2: タンパク質 | 分子量: 19705.418 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: EIF2AK2, PKR, PRKR / 発現宿主: Escherichia coli (大腸菌) 参照: UniProt: P19525, non-specific serine/threonine protein kinase, non-specific protein-tyrosine kinase |
#3: タンパク質 | 分子量: 9916.187 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Vaccinia virus WR (ウイルス) / 株: Western Reserve / 遺伝子: VACWR059, E3L / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P21605 |
-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: The PKR and E3L complex / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES |
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分子量 | 値: 0.4 MDa / 実験値: YES |
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: 7.1 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R2/2 |
急速凍結 | 凍結剤: NITROGEN |
-電子顕微鏡撮影
顕微鏡 | モデル: TFS GLACIOS |
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電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: DARK 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): 1800 nm |
撮影 | 電子線照射量: 39.99 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
-解析
ソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 6.39 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 307424 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 立体化学のターゲット値: CDL v1.2 | ||||||||||||||||||||||||
拘束条件 |
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