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基本情報
登録情報 | データベース: PDB / ID: 7pzc | ||||||
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タイトル | Cryo-EM structure of the NLRP3 decamer bound to the inhibitor CRID3 | ||||||
![]() | NACHT, LRR and PYD domains-containing protein 3 | ||||||
![]() | IMMUNE SYSTEM / NLRP3 / CP-456.773 / CRID3 / MCC950 / AAA+ ATPase / NOD-like receptor / inflammasome | ||||||
機能・相同性 | ![]() detection of biotic stimulus / molecular sensor activity / phosphatidylinositol phosphate binding / positive regulation of T-helper 2 cell differentiation / NLRP3 inflammasome complex assembly / positive regulation of T-helper 2 cell cytokine production / interphase microtubule organizing center / positive regulation of type 2 immune response / NLRP3 inflammasome complex / cysteine-type endopeptidase activator activity ...detection of biotic stimulus / molecular sensor activity / phosphatidylinositol phosphate binding / positive regulation of T-helper 2 cell differentiation / NLRP3 inflammasome complex assembly / positive regulation of T-helper 2 cell cytokine production / interphase microtubule organizing center / positive regulation of type 2 immune response / NLRP3 inflammasome complex / cysteine-type endopeptidase activator activity / peptidoglycan binding / osmosensory signaling pathway / phosphatidylinositol-4-phosphate binding / negative regulation of non-canonical NF-kappaB signal transduction / pattern recognition receptor signaling pathway / negative regulation of interleukin-1 beta production / pyroptotic inflammatory response / positive regulation of interleukin-4 production / microtubule organizing center / negative regulation of acute inflammatory response / The NLRP3 inflammasome / Purinergic signaling in leishmaniasis infection / signaling adaptor activity / protein maturation / positive regulation of interleukin-1 beta production / molecular condensate scaffold activity / positive regulation of non-canonical NF-kappaB signal transduction / defense response / positive regulation of NF-kappaB transcription factor activity / Cytoprotection by HMOX1 / ADP binding / protein homooligomerization / cellular response to virus / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / negative regulation of inflammatory response / Metalloprotease DUBs / positive regulation of inflammatory response / SARS-CoV-1 activates/modulates innate immune responses / cellular response to lipopolysaccharide / regulation of inflammatory response / protein-macromolecule adaptor activity / molecular adaptor activity / DNA-binding transcription factor binding / sequence-specific DNA binding / inflammatory response / Golgi membrane / innate immune response / apoptotic process / SARS-CoV-2 activates/modulates innate and adaptive immune responses / endoplasmic reticulum / signal transduction / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / mitochondrion / extracellular region / ATP binding / identical protein binding / nucleus / membrane / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() | ||||||
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 | ||||||
![]() | Hochheiser, I.V. / Pilsl, M. / Hagelueken, G. / Engel, C. / Geyer, M. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of the NLRP3 decamer bound to the cytokine release inhibitor CRID3. 著者: Inga V Hochheiser / Michael Pilsl / Gregor Hagelueken / Jonas Moecking / Michael Marleaux / Rebecca Brinkschulte / Eicke Latz / Christoph Engel / Matthias Geyer / ![]() 要旨: NLRP3 is an intracellular sensor protein that when activated by a broad spectrum of exogenous and endogenous stimuli leads to inflammasome formation and pyroptosis. The conformational states of NLRP3 ...NLRP3 is an intracellular sensor protein that when activated by a broad spectrum of exogenous and endogenous stimuli leads to inflammasome formation and pyroptosis. The conformational states of NLRP3 and the way antagonistic small molecules act at the molecular level remain poorly understood. Here we report the cryo-electron microscopy structures of full-length human NLRP3 in its native form and complexed with the inhibitor CRID3 (also named MCC950). Inactive, ADP-bound NLRP3 is a decamer composed of homodimers of intertwined leucine-rich repeat (LRR) domains that assemble back-to-back as pentamers. The NACHT domain is located at the apical axis of this spherical structure. One pyrin domain dimer is in addition formed inside the LRR cage. Molecular contacts between the concave sites of two opposing LRR domains are mediated by an acidic loop that extends from an LRR transition segment. Binding of CRID3 considerably stabilizes the NACHT and LRR domains relative to each other. CRID3 binds into a cleft, connecting four subdomains of the NACHT with the transition LRR. Its central sulfonylurea group interacts with the Walker A motif of the NLRP3 nucleotide-binding domain and is sandwiched between two arginine residues, which explains the specificity of NLRP3 for this chemical entity. With the determination of the binding site of this key therapeutic agent, specific targeting of NLRP3 for the treatment of autoinflammatory and autoimmune diseases and rational drug optimization is within reach. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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-検証レポート
文書・要旨 | ![]() | 2.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 2.4 MB | 表示 | |
XML形式データ | ![]() | 235.8 KB | 表示 | |
CIF形式データ | ![]() | 326.5 KB | 表示 | |
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
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 118323.531 Da / 分子数: 10 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: Q96P20 #2: 化合物 | ChemComp-ADP / #3: 化合物 | ChemComp-8GI / 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 |
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試料調製
構成要素 | 名称: Decameric complex of the NLRP3 protein bound to ADP and CRID3 タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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分子量 | 値: 1.18 MDa / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 詳細: 50 mM Hepes pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 10 mM MgCl2, 1 mM ADP |
試料 | 濃度: 0.01 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 750 nm |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 45 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
粒子像の選択 | 選択した粒子像数: 1588061 | ||||||||||||||||
対称性 | 点対称性: D5 (2回x5回 2面回転対称) | ||||||||||||||||
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: 161351 / 対称性のタイプ: POINT | ||||||||||||||||
原子モデル構築 | プロトコル: AB INITIO MODEL |