+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8sv8 | ||||||
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タイトル | Cryo-EM structure of a double loaded human UBA7-UBE2L6-ISG15 thioester mimetic complex from a composite map | ||||||
要素 |
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キーワード | SIGNALING PROTEIN / Complex / ubiquitin / ligase | ||||||
機能・相同性 | 機能・相同性情報 ISG15 activating enzyme activity / ISG15 transferase activity / 合成酵素; C-S結合を形成; 酸とチオールを結合するもの / positive regulation of protein oligomerization / ISG15-protein conjugation / regulation of type II interferon production / protein localization to mitochondrion / NS1 Mediated Effects on Host Pathways / response to type I interferon / negative regulation of type I interferon-mediated signaling pathway ...ISG15 activating enzyme activity / ISG15 transferase activity / 合成酵素; C-S結合を形成; 酸とチオールを結合するもの / positive regulation of protein oligomerization / ISG15-protein conjugation / regulation of type II interferon production / protein localization to mitochondrion / NS1 Mediated Effects on Host Pathways / response to type I interferon / negative regulation of type I interferon-mediated signaling pathway / negative regulation of viral genome replication / E2 ubiquitin-conjugating enzyme / RSV-host interactions / ubiquitin conjugating enzyme activity / positive regulation of interleukin-10 production / positive regulation of bone mineralization / ubiquitin ligase complex / negative regulation of protein ubiquitination / positive regulation of interferon-beta production / positive regulation of erythrocyte differentiation / ubiquitin binding / integrin-mediated signaling pathway / Negative regulators of DDX58/IFIH1 signaling / Termination of translesion DNA synthesis / protein modification process / DDX58/IFIH1-mediated induction of interferon-alpha/beta / response to virus / PKR-mediated signaling / ISG15 antiviral mechanism / modification-dependent protein catabolic process / protein polyubiquitination / positive regulation of type II interferon production / ubiquitin-protein transferase activity / protein tag activity / Interferon alpha/beta signaling / integrin binding / Antigen processing: Ubiquitination & Proteasome degradation / ubiquitin-dependent protein catabolic process / defense response to virus / protein ubiquitination / defense response to bacterium / Amyloid fiber formation / innate immune response / DNA damage response / ubiquitin protein ligase binding / SARS-CoV-2 activates/modulates innate and adaptive immune responses / extracellular region / nucleoplasm / ATP binding / nucleus / cytosol / cytoplasm 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: 3.38 Å | ||||||
データ登録者 | Afsar, M. / Jia, L. / Ruben, E.A. / Olsen, S.K. | ||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2023 タイトル: Cryo-EM structures of Uba7 reveal the molecular basis for ISG15 activation and E1-E2 thioester transfer. 著者: Mohammad Afsar / GuanQun Liu / Lijia Jia / Eliza A Ruben / Digant Nayak / Zuberwasim Sayyad / Priscila Dos Santos Bury / Kristin E Cano / Anindita Nayak / Xiang Ru Zhao / Ankita Shukla / ...著者: Mohammad Afsar / GuanQun Liu / Lijia Jia / Eliza A Ruben / Digant Nayak / Zuberwasim Sayyad / Priscila Dos Santos Bury / Kristin E Cano / Anindita Nayak / Xiang Ru Zhao / Ankita Shukla / Patrick Sung / Elizabeth V Wasmuth / Michaela U Gack / Shaun K Olsen / 要旨: ISG15 plays a crucial role in the innate immune response and has been well-studied due to its antiviral activity and regulation of signal transduction, apoptosis, and autophagy. ISG15 is a ubiquitin- ...ISG15 plays a crucial role in the innate immune response and has been well-studied due to its antiviral activity and regulation of signal transduction, apoptosis, and autophagy. ISG15 is a ubiquitin-like protein that is activated by an E1 enzyme (Uba7) and transferred to a cognate E2 enzyme (UBE2L6) to form a UBE2L6-ISG15 intermediate that functions with E3 ligases that catalyze conjugation of ISG15 to target proteins. Despite its biological importance, the molecular basis by which Uba7 catalyzes ISG15 activation and transfer to UBE2L6 is unknown as there is no available structure of Uba7. Here, we present cryo-EM structures of human Uba7 in complex with UBE2L6, ISG15 adenylate, and ISG15 thioester intermediate that are poised for catalysis of Uba7-UBE2L6-ISG15 thioester transfer. Our structures reveal a unique overall architecture of the complex compared to structures from the ubiquitin conjugation pathway, particularly with respect to the location of ISG15 thioester intermediate. Our structures also illuminate the molecular basis for Uba7 activities and for its exquisite specificity for ISG15 and UBE2L6. Altogether, our structural, biochemical, and human cell-based data provide significant insights into the functions of Uba7, UBE2L6, and ISG15 in cells. | ||||||
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 | 8sv8.cif.gz | 265.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8sv8.ent.gz | 207.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8sv8.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 | 8sv8_validation.pdf.gz | 916.7 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8sv8_full_validation.pdf.gz | 935.5 KB | 表示 | |
XML形式データ | 8sv8_validation.xml.gz | 40.6 KB | 表示 | |
CIF形式データ | 8sv8_validation.cif.gz | 61.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/sv/8sv8 ftp://data.pdbj.org/pub/pdb/validation_reports/sv/8sv8 | HTTPS FTP |
-関連構造データ
-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: 111822.102 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: UBA7, UBE1L, UBE2 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P41226 | ||||||
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#2: タンパク質 | 分子量: 17147.637 Da / 分子数: 2 / Mutation: C78S / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ISG15, G1P2, UCRP / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P05161 #3: タンパク質 | | 分子量: 17643.377 Da / 分子数: 1 / Mutation: C98S/C102S/L121K / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: UBE2L6, UBCH8 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: O14933, E2 ubiquitin-conjugating enzyme #4: 化合物 | ChemComp-AMP / | 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: double loaded human UBA7-UBE2L6-ISG15 thioester mimetic complex タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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分子量 | 値: 0.160 MDa / 実験値: NO |
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: 7.5 |
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): 2888 nm / 最小 デフォーカス(公称値): 100 nm |
撮影 | 電子線照射量: 80 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: 1.20.1_4487: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.38 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 225140 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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