+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6b70 | |||||||||||||||
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タイトル | Cryo-EM structure of human insulin degrading enzyme in complex with FAB H11-E heavy chain, FAB H11-E light chain and insulin | |||||||||||||||
要素 |
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キーワード | HYDROLASE/IMMUNE SYSTEM/HORMONE / IDE / insulin degrading enzyme / amyloid beta / BIOSYNTHETIC PROTEIN / HYDROLASE-IMMUNE SYSTEM-HORMONE complex | |||||||||||||||
機能・相同性 | 機能・相同性情報 insulysin / ubiquitin recycling / insulin catabolic process / insulin metabolic process / amyloid-beta clearance by cellular catabolic process / hormone catabolic process / bradykinin catabolic process / insulin binding / negative regulation of NAD(P)H oxidase activity / negative regulation of glycogen catabolic process ...insulysin / ubiquitin recycling / insulin catabolic process / insulin metabolic process / amyloid-beta clearance by cellular catabolic process / hormone catabolic process / bradykinin catabolic process / insulin binding / negative regulation of NAD(P)H oxidase activity / negative regulation of glycogen catabolic process / positive regulation of nitric oxide mediated signal transduction / negative regulation of fatty acid metabolic process / regulation of aerobic respiration / negative regulation of feeding behavior / peptide catabolic process / Signaling by Insulin receptor / IRS activation / Insulin processing / regulation of protein secretion / positive regulation of peptide hormone secretion / positive regulation of respiratory burst / negative regulation of acute inflammatory response / Regulation of gene expression in beta cells / immunoglobulin complex / alpha-beta T cell activation / amyloid-beta clearance / regulation of amino acid metabolic process / peroxisomal matrix / negative regulation of respiratory burst involved in inflammatory response / negative regulation of protein secretion / positive regulation of dendritic spine maintenance / positive regulation of glycogen biosynthetic process / Synthesis, secretion, and deacylation of Ghrelin / regulation of protein localization to plasma membrane / amyloid-beta metabolic process / fatty acid homeostasis / negative regulation of gluconeogenesis / negative regulation of lipid catabolic process / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / COPI-mediated anterograde transport / positive regulation of lipid biosynthetic process / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / positive regulation of insulin receptor signaling pathway / nitric oxide-cGMP-mediated signaling / negative regulation of reactive oxygen species biosynthetic process / positive regulation of protein autophosphorylation / Insulin receptor recycling / transport vesicle / insulin-like growth factor receptor binding / neuron projection maintenance / endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of brown fat cell differentiation / positive regulation of protein metabolic process / NPAS4 regulates expression of target genes / activation of protein kinase B activity / positive regulation of glycolytic process / Insulin receptor signalling cascade / positive regulation of mitotic nuclear division / positive regulation of nitric-oxide synthase activity / proteolysis involved in protein catabolic process / positive regulation of cytokine production / positive regulation of long-term synaptic potentiation / acute-phase response / endosome lumen / Regulation of insulin secretion / positive regulation of D-glucose import / positive regulation of protein secretion / negative regulation of proteolysis / positive regulation of cell differentiation / Peroxisomal protein import / regulation of transmembrane transporter activity / insulin receptor binding / peptide binding / wound healing / protein catabolic process / regulation of synaptic plasticity / negative regulation of protein catabolic process / hormone activity / antigen processing and presentation of endogenous peptide antigen via MHC class I / metalloendopeptidase activity / positive regulation of neuron projection development / cognition / positive regulation of protein localization to nucleus / Golgi lumen / vasodilation / positive regulation of protein catabolic process / glucose metabolic process / positive regulation of protein binding / peroxisome / cell-cell signaling / insulin receptor signaling pathway / glucose homeostasis / regulation of protein localization / positive regulation of NF-kappaB transcription factor activity / virus receptor activity / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of cell growth / basolateral plasma membrane / protease binding 類似検索 - 分子機能 | |||||||||||||||
生物種 | Homo sapiens (ヒト) Mus musculus (ハツカネズミ) | |||||||||||||||
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: 3.7 Å | |||||||||||||||
データ登録者 | Liang, W.G. / Zhang, Z. / Bailey, L.J. / Kossiakoff, A.A. / Tan, Y.Z. / Wei, H. / Carragher, B. / Potter, S.C. / Tang, W.J. | |||||||||||||||
資金援助 | 米国, 4件
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引用 | ジャーナル: Elife / 年: 2018 タイトル: Ensemble cryoEM elucidates the mechanism of insulin capture and degradation by human insulin degrading enzyme. 著者: Zhening Zhang / Wenguang G Liang / Lucas J Bailey / Yong Zi Tan / Hui Wei / Andrew Wang / Mara Farcasanu / Virgil A Woods / Lauren A McCord / David Lee / Weifeng Shang / Rebecca Deprez- ...著者: Zhening Zhang / Wenguang G Liang / Lucas J Bailey / Yong Zi Tan / Hui Wei / Andrew Wang / Mara Farcasanu / Virgil A Woods / Lauren A McCord / David Lee / Weifeng Shang / Rebecca Deprez-Poulain / Benoit Deprez / David R Liu / Akiko Koide / Shohei Koide / Anthony A Kossiakoff / Sheng Li / Bridget Carragher / Clinton S Potter / Wei-Jen Tang / 要旨: Insulin degrading enzyme (IDE) plays key roles in degrading peptides vital in type two diabetes, Alzheimer's, inflammation, and other human diseases. However, the process through which IDE recognizes ...Insulin degrading enzyme (IDE) plays key roles in degrading peptides vital in type two diabetes, Alzheimer's, inflammation, and other human diseases. However, the process through which IDE recognizes peptides that tend to form amyloid fibrils remained unsolved. We used cryoEM to understand both the apo- and insulin-bound dimeric IDE states, revealing that IDE displays a large opening between the homologous ~55 kDa N- and C-terminal halves to allow selective substrate capture based on size and charge complementarity. We also used cryoEM, X-ray crystallography, SAXS, and HDX-MS to elucidate the molecular basis of how amyloidogenic peptides stabilize the disordered IDE catalytic cleft, thereby inducing selective degradation by substrate-assisted catalysis. Furthermore, our insulin-bound IDE structures explain how IDE processively degrades insulin by stochastically cutting either chain without breaking disulfide bonds. Together, our studies provide a mechanism for how IDE selectively degrades amyloidogenic peptides and offers structural insights for developing IDE-based therapies. | |||||||||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6b70.cif.gz | 491.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6b70.ent.gz | 404.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6b70.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 | 6b70_validation.pdf.gz | 1011.6 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6b70_full_validation.pdf.gz | 1 MB | 表示 | |
XML形式データ | 6b70_validation.xml.gz | 83.4 KB | 表示 | |
CIF形式データ | 6b70_validation.cif.gz | 128.1 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/b7/6b70 ftp://data.pdbj.org/pub/pdb/validation_reports/b7/6b70 | HTTPS FTP |
-関連構造データ
関連構造データ | 7062MC 7041C 7065C 7066C 7090C 7091C 7092C 7093C 5wobC 6b3qC 6b7yC 6b7zC 6bf6C 6bf7C 6bf8C 6bf9C 6bfcC 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 |
-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: 111866.484 Da / 分子数: 2 / 断片: residues 46-1011 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: IDE / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P14735, insulysin #2: 抗体 | 分子量: 23057.748 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) Mus musculus (ハツカネズミ), (組換発現) Homo sapiens (ヒト) 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P0DOX5 #3: 抗体 | 分子量: 23087.609 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) Mus musculus (ハツカネズミ), (組換発現) Homo sapiens (ヒト) 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q6GMX0 #4: タンパク質 | 分子量: 11989.862 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: INS / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P01308 |
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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 |
-試料調製
構成要素 | 名称: Insulin degrading enzyme/Insulin / タイプ: COMPLEX 詳細: Cryo-EM structure of human insulin degrading enzyme in complex with insulin Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.1 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) / 株: BL | ||||||||||||||||||||
緩衝液 | pH: 7.8 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.3 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: The sample was monodisperse | ||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Homemade | ||||||||||||||||||||
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE / 湿度: 85 % / 凍結前の試料温度: 298 K 詳細: The cryo grids were made using Spotiton and homemade plunger |
-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 / 倍率(公称値): 22500 X / 倍率(補正後): 46598 X / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 940 nm / Cs: 2.7 mm / C2レンズ絞り径: 70 µm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER 最高温度: 70 K / 最低温度: 70 K / Residual tilt: 10 mradians |
撮影 | 平均露光時間: 10 sec. / 電子線照射量: 71.4 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 撮影したグリッド数: 3 / 実像数: 3085 |
画像スキャン | サンプリングサイズ: 5 µm / 横: 3710 / 縦: 3838 / 動画フレーム数/画像: 50 / 利用したフレーム数/画像: 1-50 |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.12_2829: / 分類: 精密化 | ||||||||||||||||||||||||||||||||||||||||||||
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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: 762283 | ||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 116122 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 92 / プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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