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基本情報
登録情報 | データベース: EMDB / ID: EMD-30784 | |||||||||
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タイトル | MDA5 CARDs-MAVS CARD polyUb complex | |||||||||
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![]() | Signaling / polyubiquitin / IMMUNE SYSTEM | |||||||||
機能・相同性 | ![]() positive regulation of IP-10 production / regulation of peroxisome organization / RIG-I binding / MDA-5 signaling pathway / regulation of type III interferon production / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of myeloid dendritic cell cytokine production / CARD domain binding / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 ...positive regulation of IP-10 production / regulation of peroxisome organization / RIG-I binding / MDA-5 signaling pathway / regulation of type III interferon production / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of myeloid dendritic cell cytokine production / CARD domain binding / detection of virus / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / positive regulation of response to cytokine stimulus / protein localization to mitochondrion / positive regulation of type I interferon-mediated signaling pathway / Modulation of host responses by IFN-stimulated genes / hypothalamus gonadotrophin-releasing hormone neuron development / peroxisomal membrane / female meiosis I / positive regulation of protein monoubiquitination / TRAF6 mediated IRF7 activation / fat pad development / mitochondrion transport along microtubule / negative regulation of type I interferon-mediated signaling pathway / type I interferon-mediated signaling pathway / negative regulation of viral genome replication / cytoplasmic pattern recognition receptor signaling pathway / pattern recognition receptor activity / female gonad development / seminiferous tubule development / cellular response to exogenous dsRNA / positive regulation of NLRP3 inflammasome complex assembly / male meiosis I / protein complex oligomerization / TRAF6 mediated NF-kB activation / positive regulation of interferon-alpha production / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / protein sumoylation / positive regulation of type I interferon production / ubiquitin ligase complex / ribonucleoprotein complex binding / energy homeostasis / regulation of neuron apoptotic process / signaling adaptor activity / positive regulation of defense response to virus by host / regulation of proteasomal protein catabolic process / Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / antiviral innate immune response / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Negative regulation of FLT3 / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / Constitutive Signaling by NOTCH1 HD Domain Mutants / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Regulation of FZD by ubiquitination / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / APC-Cdc20 mediated degradation of Nek2A / activation of innate immune response / InlA-mediated entry of Listeria monocytogenes into host cells / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / Regulation of pyruvate metabolism / Regulation of innate immune responses to cytosolic DNA / NF-kB is activated and signals survival / Downregulation of ERBB2:ERBB3 signaling / Pexophagy / positive regulation of interferon-beta production / NRIF signals cell death from the nucleus / VLDLR internalisation and degradation / Regulation of PTEN localization / Activated NOTCH1 Transmits Signal to the Nucleus / positive regulation of DNA-binding transcription factor activity / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Regulation of BACH1 activity / neuron projection morphogenesis / MAP3K8 (TPL2)-dependent MAPK1/3 activation / regulation of mitochondrial membrane potential / TICAM1, RIP1-mediated IKK complex recruitment / Translesion synthesis by REV1 / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLK / InlB-mediated entry of Listeria monocytogenes into host cell / Downregulation of TGF-beta receptor signaling / Josephin domain DUBs / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / 解像度: 3.2 Å | |||||||||
![]() | Song B / Chen Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Ordered assembly of the cytosolic RNA-sensing MDA5-MAVS signaling complex via binding to unanchored K63-linked poly-ubiquitin chains. 著者: Bin Song / Yun Chen / Xin Liu / Fei Yuan / Eddie Yong Jun Tan / Yixuan Lei / Ning Song / Yinqi Han / Bruce D Pascal / Patrick R Griffin / Cheng Luo / Bin Wu / Dahai Luo / Jie Zheng / ![]() ![]() ![]() 要旨: The RNA sensor MDA5 recruits the signaling adaptor MAVS to initiate type I interferon signaling and downstream antiviral responses, a process that requires K63-linked polyubiquitin chains. Here, we ...The RNA sensor MDA5 recruits the signaling adaptor MAVS to initiate type I interferon signaling and downstream antiviral responses, a process that requires K63-linked polyubiquitin chains. Here, we examined the mechanisms whereby K63-polyUb chain regulate MDA5 activation. Only long unanchored K63-polyUb (n ≥ 8) could mediate tetramerization of the caspase activation and recruitment domains of MDA5 (CARDs). Cryoelectron microscopy structures of a polyUb-bound CARDs tetramer and a polyUb-bound CARDs-CARD assembly revealed a tower-like formation, wherein eight Ubs tethered along the outer rim of the helical shell, bridging CARDs and CARD tetramers into proximity. ATP binding and hydrolysis promoted the stabilization of RNA-bound MDA5 prior to MAVS activation via allosteric effects on CARDs-polyUb complex. Abundant ATP prevented basal activation of apo MDA5. Our findings reveal the ordered assembly of a MDA5 signaling complex competent to recruit and activate MAVS and highlight differences with RIG-I in terms of CARD orientation and Ub sensing that suggest different abilities to induce antiviral responses. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 24.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 13.9 KB 13.9 KB | 表示 表示 | ![]() |
画像 | ![]() | 257.5 KB | ||
Filedesc metadata | ![]() | 5.6 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.045 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
-全体 : K63-polyUb bound MDA5CARDs-MAVSCARD complex
全体 | 名称: K63-polyUb bound MDA5CARDs-MAVSCARD complex |
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要素 |
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-超分子 #1: K63-polyUb bound MDA5CARDs-MAVSCARD complex
超分子 | 名称: K63-polyUb bound MDA5CARDs-MAVSCARD complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: ![]() |
-分子 #1: Ubiquitin
分子 | 名称: Ubiquitin / タイプ: protein_or_peptide / ID: 1 / コピー数: 8 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 8.576831 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN IQKESTLHLV LRLRGG UniProtKB: Polyubiquitin-B |
-分子 #2: Interferon-induced helicase C domain-containing protein 1
分子 | 名称: Interferon-induced helicase C domain-containing protein 1 タイプ: protein_or_peptide / ID: 2 / コピー数: 4 / 光学異性体: LEVO / EC番号: RNA helicase |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 23.825883 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSNGYSTDEN FRYLISCFRA RVKMYIQVEP VLDYLTFLPA EVKEQIQRTV ATSGNMQAVE LLLSTLEKGV WHLGWTREFV EALRRTGSP LAARYMNPEL TDLPSPSFEN AHDEYLQLLN LLQPTLVDKL LVRDVLDKCM EEELLTIEDR NRIAAAENNG N ESGVRELL ...文字列: MSNGYSTDEN FRYLISCFRA RVKMYIQVEP VLDYLTFLPA EVKEQIQRTV ATSGNMQAVE LLLSTLEKGV WHLGWTREFV EALRRTGSP LAARYMNPEL TDLPSPSFEN AHDEYLQLLN LLQPTLVDKL LVRDVLDKCM EEELLTIEDR NRIAAAENNG N ESGVRELL KRIVQKENWF SAFLNVLRQT GNNELVQELT GSDCSESNAE UniProtKB: Interferon-induced helicase C domain-containing protein 1 |
-分子 #3: Mitochondrial antiviral-signaling protein
分子 | 名称: Mitochondrial antiviral-signaling protein / タイプ: protein_or_peptide / ID: 3 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 11.342082 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MPFAEDKTYK YICRNFSNFC NVKVVKILPY LPCLTARDQD RLRATCTLSG NRDTLWHLFN TLQRRPGWVE YFIAALRGCK LVDLADEVA SVYQSYQP UniProtKB: Mitochondrial antiviral-signaling protein |
-実験情報
-構造解析
![]() | 単粒子再構成法 |
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試料の集合状態 | particle |
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試料調製
濃度 | 1.6 mg/mL |
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緩衝液 | pH: 7.5 |
詳細 | heterotetrameric complex |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 70.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |