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基本情報
登録情報 | データベース: PDB / ID: 6hn4 | |||||||||||||||
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タイトル | Leucine-zippered human insulin receptor ectodomain with single bound insulin - "lower" membrane-proximal part | |||||||||||||||
![]() | Insulin receptor,Insulin receptor,General control protein GCN4 | |||||||||||||||
![]() | SIGNALING PROTEIN / insulin / insulin receptor ectodomain / signal transdution | |||||||||||||||
機能・相同性 | ![]() regulation of female gonad development / FCERI mediated MAPK activation / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / positive regulation of meiotic cell cycle / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / mediator complex binding / insulin-like growth factor II binding ...regulation of female gonad development / FCERI mediated MAPK activation / protein localization to nuclear periphery / Activation of the AP-1 family of transcription factors / positive regulation of meiotic cell cycle / response to amino acid starvation / negative regulation of ribosomal protein gene transcription by RNA polymerase II / positive regulation of cellular response to amino acid starvation / mediator complex binding / 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 / Oxidative Stress Induced Senescence / dendritic spine maintenance / cargo receptor activity / insulin binding / adrenal gland development / neuronal cell body membrane / PTB domain binding / Signaling by Insulin receptor / IRS activation / positive regulation of respiratory burst / amyloid-beta clearance / TFIID-class transcription factor complex binding / positive regulation of receptor internalization / regulation of embryonic development / insulin receptor substrate binding / protein kinase activator activity / positive regulation of RNA polymerase II transcription preinitiation complex assembly / epidermis development / positive regulation of glycogen biosynthetic process / Signal attenuation / positive regulation of transcription initiation by RNA polymerase II / heart morphogenesis / cellular response to nutrient levels / transport across blood-brain barrier / phosphatidylinositol 3-kinase binding / Insulin receptor recycling / amino acid biosynthetic process / insulin-like growth factor receptor binding / dendrite membrane / neuron projection maintenance / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / receptor-mediated endocytosis / cellular response to amino acid starvation / positive regulation of glycolytic process / positive regulation of D-glucose import / learning / receptor protein-tyrosine kinase / caveola / cellular response to growth factor stimulus / receptor internalization / RNA polymerase II transcription regulator complex / memory / male gonad development / cellular response to insulin stimulus / positive regulation of nitric oxide biosynthetic process / late endosome / insulin receptor signaling pathway / glucose homeostasis / amyloid-beta binding / protein autophosphorylation / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / DNA-binding transcription activator activity, RNA polymerase II-specific / protein tyrosine kinase activity / transcription regulator complex / sequence-specific DNA binding / RNA polymerase II-specific DNA-binding transcription factor binding / DNA-binding transcription factor activity, RNA polymerase II-specific / endosome membrane / lysosome / receptor complex / positive regulation of canonical NF-kappaB signal transduction / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of MAPK cascade / intracellular signal transduction / positive regulation of cell migration / RNA polymerase II cis-regulatory region sequence-specific DNA binding / G protein-coupled receptor signaling pathway / DNA-binding transcription factor activity / axon / protein domain specific binding / external side of plasma membrane / positive regulation of cell population proliferation / chromatin binding / symbiont entry into host cell / regulation of DNA-templated transcription / GTP binding / positive regulation of DNA-templated transcription / protein-containing complex binding / negative regulation of transcription by RNA polymerase II / positive regulation of transcription by RNA polymerase II / extracellular exosome / ATP binding 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: 4.2 Å | |||||||||||||||
![]() | Weis, F. / Menting, J.G. / Margetts, M.B. / Chan, S.J. / Xu, Y. / Tennagels, N. / Wohlfart, P. / Langer, T. / Mueller, C.W. / Dreyer, M.K. / Lawrence, M.C. | |||||||||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: The signalling conformation of the insulin receptor ectodomain. 著者: Felix Weis / John G Menting / Mai B Margetts / Shu Jin Chan / Yibin Xu / Norbert Tennagels / Paulus Wohlfart / Thomas Langer / Christoph W Müller / Matthias K Dreyer / Michael C Lawrence / ![]() ![]() ![]() 要旨: Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy ...Understanding the structural biology of the insulin receptor and how it signals is of key importance in the development of insulin analogs to treat diabetes. We report here a cryo-electron microscopy structure of a single insulin bound to a physiologically relevant, high-affinity version of the receptor ectodomain, the latter generated through attachment of C-terminal leucine zipper elements to overcome the conformational flexibility associated with ectodomain truncation. The resolution of the cryo-electron microscopy maps is 3.2 Å in the insulin-binding region and 4.2 Å in the membrane-proximal region. The structure reveals how the membrane proximal domains of the receptor come together to effect signalling and how insulin's negative cooperativity of binding likely arises. Our structure further provides insight into the high affinity of certain super-mitogenic insulins. Together, these findings provide a new platform for insulin analog investigation and design. | |||||||||||||||
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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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PDBx/mmCIF形式 | ![]() | 161.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 114.2 KB | 表示 | ![]() |
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その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 723.8 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 731.2 KB | 表示 | |
XML形式データ | ![]() | 26.9 KB | 表示 | |
CIF形式データ | ![]() | 38.8 KB | 表示 | |
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-関連構造データ
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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: 106728.211 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: INSR, GCN4, AAS3, ARG9, YEL009C / プラスミド: pEE14 / 株: ATCC 204508 / S288c / 細胞株 (発現宿主): Lec8 発現宿主: ![]() ![]() 参照: UniProt: P06213, UniProt: P03069, receptor protein-tyrosine kinase #2: 糖 | ChemComp-NAG / 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 | 名称: Leucine zippered human insulin receptor ectodomain (IR-A isoform, "deltabeta" mutant) in complex with insulin and two Fv 83-7 modules : "lower" membrane-proximal part タイプ: COMPLEX 詳細: Note: Attached to the leucine-zippered insulin receptor ectodomain are two Fv 83-7 modules. One of these is present within this map volume but it is very poorly ordered and thus left ...詳細: Note: Attached to the leucine-zippered insulin receptor ectodomain are two Fv 83-7 modules. One of these is present within this map volume but it is very poorly ordered and thus left completely unmodelled. See the manuscript for further details. Entity ID: #1 / 由来: RECOMBINANT | |||||||||||||||
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分子量 | 単位: MEGADALTONS / 実験値: NO | |||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() 細胞: Lec8 / プラスミド: pEE14 | |||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.094 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: 283.15 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 / 倍率(公称値): 130000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 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 |
撮影 | 平均露光時間: 16 sec. / 電子線照射量: 1.85 e/Å2 / 検出モード: SUPER-RESOLUTION 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: 2287 |
電子光学装置 | エネルギーフィルター名称: GIF Quantum LS / エネルギーフィルタースリット幅: 20 eV |
画像スキャン | 動画フレーム数/画像: 20 / 利用したフレーム数/画像: 1-20 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.13-2998_1692: / 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: 747074 | ||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 98481 / アルゴリズム: BACK PROJECTION / クラス平均像の数: 2 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL / Target criteria: Cross-correlation coefficient | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 4ZXB Accession code: 4ZXB / Source name: PDB / タイプ: experimental model |