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基本情報
登録情報 | データベース: PDB / ID: 6sof | |||||||||||||||
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タイトル | human insulin receptor ectodomain bound by 4 insulin | |||||||||||||||
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![]() | MEMBRANE PROTEIN / cell surface receptor / insulin / tyrosine kinase receptor / glucose homeostasis / hormone / diabetes | |||||||||||||||
機能・相同性 | ![]() regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / insulin receptor complex / insulin-like growth factor I binding / positive regulation of protein-containing complex disassembly / insulin receptor activity / exocrine pancreas development ...regulation of female gonad development / positive regulation of meiotic cell cycle / insulin-like growth factor II binding / positive regulation of developmental growth / male sex determination / insulin receptor complex / insulin-like growth factor I binding / positive regulation of protein-containing complex disassembly / insulin receptor activity / exocrine pancreas development / dendritic spine maintenance / cargo receptor activity / insulin binding / adrenal gland development / neuronal cell body membrane / negative regulation of glycogen catabolic process / PTB domain binding / positive regulation of nitric oxide mediated signal transduction / negative regulation of feeding behavior / negative regulation of fatty acid metabolic process / Signaling by Insulin receptor / IRS activation / Insulin processing / regulation of protein secretion / positive regulation of peptide hormone secretion / positive regulation of respiratory burst / amyloid-beta clearance / negative regulation of acute inflammatory response / Regulation of gene expression in beta cells / alpha-beta T cell activation / regulation of embryonic development / positive regulation of receptor internalization / insulin receptor substrate binding / protein kinase activator activity / positive regulation of dendritic spine maintenance / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of respiratory burst involved in inflammatory response / epidermis development / negative regulation of protein secretion / activation of protein kinase B activity / negative regulation of gluconeogenesis / positive regulation of insulin receptor signaling pathway / positive regulation of glycogen biosynthetic process / fatty acid homeostasis / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / negative regulation of lipid catabolic process / heart morphogenesis / positive regulation of lipid biosynthetic process / transport across blood-brain barrier / regulation of protein localization to plasma membrane / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / phosphatidylinositol 3-kinase binding / transport vesicle / nitric oxide-cGMP-mediated signaling / COPI-mediated anterograde transport / positive regulation of nitric-oxide synthase activity / Insulin receptor recycling / negative regulation of reactive oxygen species biosynthetic process / insulin-like growth factor receptor binding / positive regulation of brown fat cell differentiation / NPAS4 regulates expression of target genes / dendrite membrane / endoplasmic reticulum-Golgi intermediate compartment membrane / neuron projection maintenance / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / receptor-mediated endocytosis / positive regulation of glycolytic process / positive regulation of cytokine production / positive regulation of long-term synaptic potentiation / endosome lumen / acute-phase response / positive regulation of protein secretion / positive regulation of D-glucose import / learning / insulin receptor binding / positive regulation of cell differentiation / Regulation of insulin secretion / wound healing / receptor protein-tyrosine kinase / negative regulation of protein catabolic process / positive regulation of neuron projection development / hormone activity / regulation of synaptic plasticity / caveola / cellular response to growth factor stimulus / receptor internalization / positive regulation of protein localization to nucleus / Golgi lumen / memory / vasodilation / cognition / male gonad development / cellular response to insulin stimulus / glucose metabolic process / positive regulation of nitric oxide biosynthetic process / late endosome / insulin receptor signaling pathway / glucose homeostasis 類似検索 - 分子機能 | |||||||||||||||
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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: 4.3 Å | |||||||||||||||
![]() | Gutmann, T. / Schaefer, I.B. / Poojari, C.S. / Vattulainen, I. / Strauss, M. / Coskun, U. | |||||||||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Cryo-EM structure of the complete and ligand-saturated insulin receptor ectodomain. 著者: Theresia Gutmann / Ingmar B Schäfer / Chetan Poojari / Beate Brankatschk / Ilpo Vattulainen / Mike Strauss / Ünal Coskun / ![]() ![]() ![]() 要旨: Glucose homeostasis and growth essentially depend on the hormone insulin engaging its receptor. Despite biochemical and structural advances, a fundamental contradiction has persisted in the current ...Glucose homeostasis and growth essentially depend on the hormone insulin engaging its receptor. Despite biochemical and structural advances, a fundamental contradiction has persisted in the current understanding of insulin ligand-receptor interactions. While biochemistry predicts two distinct insulin binding sites, 1 and 2, recent structural analyses have resolved only site 1. Using a combined approach of cryo-EM and atomistic molecular dynamics simulation, we present the structure of the entire dimeric insulin receptor ectodomain saturated with four insulin molecules. Complementing the previously described insulin-site 1 interaction, we present the first view of insulin bound to the discrete insulin receptor site 2. Insulin binding stabilizes the receptor ectodomain in a T-shaped conformation wherein the membrane-proximal domains converge and contact each other. These findings expand the current models of insulin binding to its receptor and of its regulation. In summary, we provide the structural basis for a comprehensive description of ligand-receptor interactions that ultimately will inform new approaches to structure-based drug design. #1: ![]() タイトル: Cryo-EM structure of the complete and ligand-saturated insulin receptor ectodomain 著者: Gutmann, T. / Schafer, I.B. / Poojari, C. / Brankatschk, B. / Vattulainen, I. / Strauss, M. / Coskun, U. | |||||||||||||||
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 627.9 KB | 表示 | ![]() |
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PDB形式 | ![]() | 525.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.1 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.1 MB | 表示 | |
XML形式データ | ![]() | 65.7 KB | 表示 | |
CIF形式データ | ![]() | 100.3 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: 82551.742 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: タンパク質 | 分子量: 18513.900 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: タンパク質・ペプチド | 分子量: 2383.698 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質・ペプチド | 分子量: 3433.953 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() Has protein modification | 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 |
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分子量 | 値: 0.375 MDa / 実験値: YES | ||||||||||||||||||||||||
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由来(組換発現) |
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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-PROPANE |
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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 / 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 |
撮影 | 平均露光時間: 10.2 sec. / 電子線照射量: 55 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: 1 / 実像数: 51 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 326257 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 6CEB Accession code: 6CEB / Source name: PDB / タイプ: experimental model |