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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Structure of the Caspase-8/cFLIP death effector domain assembly | |||||||||
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![]() | FADD / caspase-8 / cellular FLICE-like inhibitory protein / Death effector domain / APOPTOSIS | |||||||||
機能・相同性 | ![]() negative regulation of myoblast fusion / skeletal myofibril assembly / caspase-8 / death effector domain binding / FasL/ CD95L signaling / syncytiotrophoblast cell differentiation involved in labyrinthine layer development / skeletal muscle atrophy / TRAIL signaling / CD95 death-inducing signaling complex / regulation of skeletal muscle satellite cell proliferation ...negative regulation of myoblast fusion / skeletal myofibril assembly / caspase-8 / death effector domain binding / FasL/ CD95L signaling / syncytiotrophoblast cell differentiation involved in labyrinthine layer development / skeletal muscle atrophy / TRAIL signaling / CD95 death-inducing signaling complex / regulation of skeletal muscle satellite cell proliferation / ripoptosome / Defective RIPK1-mediated regulated necrosis / TRAIL-activated apoptotic signaling pathway / Apoptotic execution phase / Activation, myristolyation of BID and translocation to mitochondria / TRIF-mediated programmed cell death / Microbial modulation of RIPK1-mediated regulated necrosis / Regulation by c-FLIP / CASP8 activity is inhibited / Dimerization of procaspase-8 / TLR3-mediated TICAM1-dependent programmed cell death / regulation of necroptotic process / Caspase activation via Death Receptors in the presence of ligand / positive regulation of extracellular matrix organization / positive regulation of macrophage differentiation / self proteolysis / positive regulation of glomerular mesangial cell proliferation / response to cobalt ion / NF-kB activation through FADD/RIP-1 pathway mediated by caspase-8 and -10 / death-inducing signaling complex / skeletal muscle tissue regeneration / CLEC7A/inflammasome pathway / negative regulation of necroptotic process / response to anesthetic / negative regulation of hepatocyte apoptotic process / regulation of tumor necrosis factor-mediated signaling pathway / tumor necrosis factor receptor binding / death receptor binding / positive regulation of hepatocyte proliferation / natural killer cell activation / negative regulation of cellular response to transforming growth factor beta stimulus / TNFR1-induced proapoptotic signaling / RIPK1-mediated regulated necrosis / negative regulation of cardiac muscle cell apoptotic process / execution phase of apoptosis / regulation of innate immune response / Apoptotic cleavage of cellular proteins / pyroptotic inflammatory response / response to testosterone / : / B cell activation / positive regulation of proteolysis / macrophage differentiation / response to tumor necrosis factor / extrinsic apoptotic signaling pathway via death domain receptors / Caspase-mediated cleavage of cytoskeletal proteins / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / skeletal muscle tissue development / negative regulation of reactive oxygen species biosynthetic process / negative regulation of canonical NF-kappaB signal transduction / extrinsic apoptotic signaling pathway / cellular response to nitric oxide / cysteine-type peptidase activity / cellular response to epidermal growth factor stimulus / cellular response to dexamethasone stimulus / regulation of cytokine production / protein maturation / proteolysis involved in protein catabolic process / T cell activation / enzyme activator activity / positive regulation of interleukin-1 beta production / negative regulation of extrinsic apoptotic signaling pathway / Regulation of NF-kappa B signaling / apoptotic signaling pathway / cellular response to estradiol stimulus / Regulation of TNFR1 signaling / wound healing / NOD1/2 Signaling Pathway / protein processing / positive regulation of neuron projection development / Regulation of necroptotic cell death / cellular response to insulin stimulus / cellular response to mechanical stimulus / positive regulation of NF-kappaB transcription factor activity / positive regulation of neuron apoptotic process / response to estradiol / lamellipodium / peptidase activity / heart development / cell body / protease binding / scaffold protein binding / angiogenesis / cellular response to hypoxia / response to lipopolysaccharide / response to ethanol / mitochondrial outer membrane / positive regulation of canonical NF-kappaB signal transduction / cytoskeleton / positive regulation of ERK1 and ERK2 cascade 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.49 Å | |||||||||
![]() | Lin S-C / Yang C-Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Reverse hierarchical DED assembly in the cFLIP-procaspase-8 and cFLIP-procaspase-8-FADD complexes. 著者: Chao-Yu Yang / Yi-Chun Tseng / Yi-Fan Tu / Bai-Jiun Kuo / Li-Chung Hsu / Chia-I Lien / You-Sheng Lin / Yin-Ting Wang / Yen-Chen Lu / Tsung-Wei Su / Yu-Chih Lo / Su-Chang Lin / ![]() 要旨: cFLIP, a master anti-apoptotic regulator, targets the FADD-induced DED complexes of procaspase-8 in death receptor and ripoptosome signaling pathways. Several tumor cells maintain relatively high ...cFLIP, a master anti-apoptotic regulator, targets the FADD-induced DED complexes of procaspase-8 in death receptor and ripoptosome signaling pathways. Several tumor cells maintain relatively high levels of cFLIP in achieving their immortality. However, understanding the three-dimensional regulatory mechanism initiated or mediated by elevated levels of cFLIP has been limited by the absence of the atomic coordinates for cFLIP-induced DED complexes. Here we report the crystal plus cryo-EM structures to uncover an unconventional mechanism where cFLIP and procaspase-8 autonomously form a binary tandem DED complex, independent of FADD. This complex gains the ability to recruit FADD, thereby allosterically modulating cFLIP assembly and partially activating caspase-8 for RIPK1 cleavage. Our structure-guided mutagenesis experiments provide critical insights into these regulatory mechanisms, elucidating the resistance to apoptosis and necroptosis in achieving immortality. Finally, this research offers a unified model for the intricate bidirectional hierarchy-based processes using multiprotein helical assembly to govern cell fate decisions. | |||||||||
履歴 |
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構造の表示
添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 70.3 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 17.3 KB 17.3 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 11 KB | 表示 | ![]() |
画像 | ![]() | 30.7 KB | ||
Filedesc metadata | ![]() | 6 KB | ||
その他 | ![]() ![]() | 127.1 MB 127.1 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8ynmMC ![]() 8ym4C ![]() 8ym5C ![]() 8ym6C ![]() 8yniC ![]() 8ynkC ![]() 8ynlC ![]() 8ynnC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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: 0.84 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_39427_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_39427_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Caspase-8/cFLIP death effector domain assembly
全体 | 名称: Caspase-8/cFLIP death effector domain assembly |
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要素 |
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-超分子 #1: Caspase-8/cFLIP death effector domain assembly
超分子 | 名称: Caspase-8/cFLIP death effector domain assembly / 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: CASP8 and FADD-like apoptosis regulator subunit p43
分子 | 名称: CASP8 and FADD-like apoptosis regulator subunit p43 / 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: 20.878479 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MSAEVIHQVE EALDTDEKEM LLFLCRDVAI DVVPPNVRDL LDILRERGKL SVGDLAELLY RVRRFDLLKR ILKMDRKAVE THLLRNPHL VSDYRVLMAE IGEDLDKSDV SSLIFLMKDY MGRGKISKEK SFLDLVVELE KLNLVAPDQL DLLEKCLKNI H RIDLKTKI QKYKQSVQGA GTS UniProtKB: CASP8 and FADD-like apoptosis regulator |
-分子 #2: Caspase-8 subunit p10
分子 | 名称: Caspase-8 subunit p10 / タイプ: protein_or_peptide / ID: 2 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 55.191648 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MDFSRNLYDI GEQLDSEDLA SLKFLSLDYI PQRKQEPIKD ALMLFQRLQE KRMLEESNLS FLKELLFRIN RLDLLITYLN TRKEEMERE LQTPGRAQIS AYRVMLYQIS EEVSRSELRS FKGGLQEEIS KCKLDDDMNL LDIFIEMEKR VILGEGKLDI L KRVCAQIN ...文字列: MDFSRNLYDI GEQLDSEDLA SLKFLSLDYI PQRKQEPIKD ALMLFQRLQE KRMLEESNLS FLKELLFRIN RLDLLITYLN TRKEEMERE LQTPGRAQIS AYRVMLYQIS EEVSRSELRS FKGGLQEEIS KCKLDDDMNL LDIFIEMEKR VILGEGKLDI L KRVCAQIN KSLLKIINDY EEFSKERSSS LEGSPDEFSN GEELCGVMTI SDSPREQDSE SQTLDKVYQM KSKPRGYCLI IN NHNFAKA REKVPKLHSI RDRNGTHLDA GALTTTFEEL HFEIKPHDDC TVEQIYEILK IYQLMDHSNM DCFICCILSH GDK GIIYGT DGQEAPIYEL TSQFTGLKCP SLAGKPKVFF IQAAQGDNYQ KGIPVETASE EQPYLEMALS SPQTRYIPDE ADFL LGMAT VNNCVSYRNP AEGTWYIQSL CQSLRERCPR GDDILTILTE VNYEVSNKDD KKNMGKQMPQ PTFTLRKKLV FPSD UniProtKB: Caspase-8 |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.2 mg/mL | |||||||||
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緩衝液 | pH: 8 構成要素:
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY | |||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 95 % / チャンバー内温度: 279 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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ソフトウェア | 名称: EPU |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 72.0 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: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 0.5 µm / 倍率(公称値): 165000 |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |