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基本情報
登録情報 | データベース: PDB / ID: 7yq5 | ||||||
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タイトル | human insulin receptor bound with A62 DNA aptamer and insulin | ||||||
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![]() | STRUCTURAL PROTEIN / receptor-ligand complex_B_overall | ||||||
機能・相同性 | ![]() negative regulation of NAD(P)H oxidase activity / negative regulation of glycogen catabolic process / regulation of cellular amino acid metabolic process / positive regulation of nitric oxide mediated signal transduction / negative regulation of fatty acid metabolic process / negative regulation of feeding behavior / Signaling by Insulin receptor / IRS activation / Insulin processing / regulation of protein secretion ...negative regulation of NAD(P)H oxidase activity / negative regulation of glycogen catabolic process / regulation of cellular amino acid metabolic process / positive regulation of nitric oxide mediated signal transduction / negative regulation of fatty acid metabolic process / negative regulation of feeding behavior / Signaling by Insulin receptor / IRS activation / Insulin processing / regulation of protein secretion / positive regulation of respiratory burst / positive regulation of peptide hormone secretion / Regulation of gene expression in beta cells / negative regulation of acute inflammatory response / alpha-beta T cell activation / negative regulation of respiratory burst involved in inflammatory response / positive regulation of dendritic spine maintenance / positive regulation of glycogen biosynthetic process / Synthesis, secretion, and deacylation of Ghrelin / negative regulation of protein secretion / regulation of protein localization to plasma membrane / fatty acid homeostasis / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / negative regulation of lipid catabolic process / negative regulation of gluconeogenesis / COPI-mediated anterograde transport / positive regulation of lipid biosynthetic process / negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway / negative regulation of reactive oxygen species biosynthetic process / positive regulation of insulin receptor signaling pathway / nitric oxide-cGMP-mediated signaling / transport vesicle / positive regulation of protein autophosphorylation / Insulin receptor recycling / neuron projection maintenance / NPAS4 regulates expression of target genes / positive regulation of protein metabolic process / positive regulation of brown fat cell differentiation / positive regulation of glycolytic process / activation of protein kinase B activity / endoplasmic reticulum-Golgi intermediate compartment membrane / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / positive regulation of nitric-oxide synthase activity / positive regulation of cytokine production / positive regulation of long-term synaptic potentiation / Regulation of insulin secretion / acute-phase response / endosome lumen / positive regulation of protein secretion / positive regulation of glucose import / positive regulation of cell differentiation / negative regulation of proteolysis / regulation of transmembrane transporter activity / insulin-like growth factor receptor binding / wound healing / insulin receptor binding / regulation of synaptic plasticity / negative regulation of protein catabolic process / hormone activity / receptor protein-tyrosine kinase / cognition / positive regulation of neuron projection development / positive regulation of protein localization to nucleus / Golgi lumen / vasodilation / glucose metabolic process / regulation of protein localization / insulin receptor signaling pathway / cell-cell signaling / glucose homeostasis / positive regulation of NF-kappaB transcription factor activity / PI5P, PP2A and IER3 Regulate PI3K/AKT Signaling / positive regulation of cell growth / secretory granule lumen / protease binding / positive regulation of MAPK cascade / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of cell migration / G protein-coupled receptor signaling pathway / Amyloid fiber formation / endoplasmic reticulum lumen / Golgi membrane / negative regulation of gene expression / positive regulation of cell population proliferation / positive regulation of gene expression / regulation of DNA-templated transcription / extracellular space / extracellular region / identical protein binding 類似検索 - 分子機能 | ||||||
生物種 | ![]() synthetic construct (人工物) | ||||||
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: 4.27 Å | ||||||
![]() | Kim, J. / Yunn, N. / Ryu, S. / Cho, Y. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Functional selectivity of insulin receptor revealed by aptamer-trapped receptor structures. 著者: Junhong Kim / Na-Oh Yunn / Mangeun Park / Jihan Kim / Seongeun Park / Yoojoong Kim / Jeongeun Noh / Sung Ho Ryu / Yunje Cho / ![]() 要旨: Activation of insulin receptor (IR) initiates a cascade of conformational changes and autophosphorylation events. Herein, we determined three structures of IR trapped by aptamers using cryo-electron ...Activation of insulin receptor (IR) initiates a cascade of conformational changes and autophosphorylation events. Herein, we determined three structures of IR trapped by aptamers using cryo-electron microscopy. The A62 agonist aptamer selectively activates metabolic signaling. In the absence of insulin, the two A62 aptamer agonists of IR adopt an insulin-accessible arrowhead conformation by mimicking site-1/site-2' insulin coordination. Insulin binding at one site triggers conformational changes in one protomer, but this movement is blocked in the other protomer by A62 at the opposite site. A62 binding captures two unique conformations of IR with a similar stalk arrangement, which underlie Tyr1150 mono-phosphorylation (m-pY1150) and selective activation for metabolic signaling. The A43 aptamer, a positive allosteric modulator, binds at the opposite side of the insulin-binding module, and stabilizes the single insulin-bound IR structure that brings two FnIII-3 regions into closer proximity for full activation. Our results suggest that spatial proximity of the two FnIII-3 ends is important for m-pY1150, but multi-phosphorylation of IR requires additional conformational rearrangement of intracellular domains mediated by coordination between extracellular and transmembrane domains. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 324 KB | 表示 | ![]() |
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PDB形式 | ![]() | 260.1 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 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 63.1 KB | 表示 | |
CIF形式データ | ![]() | 91.4 KB | 表示 | |
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 | ![]() 34020MC ![]() 7yq3C ![]() 7yq4C ![]() 7yq6C ![]() 8guyC 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 ( |
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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
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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・ペプチド | 分子量: 2383.698 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||
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#2: タンパク質・ペプチド | 分子量: 2860.250 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||
#3: DNA鎖 | 分子量: 8526.799 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) | ||
#4: タンパク質 | 分子量: 103623.578 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 研究の焦点であるリガンドがあるか | Y | |
-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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由来(天然) | 生物種: ![]() | ||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||||||
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 |
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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): 2250 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.14_3260: / 分類: 精密化 |
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CTF補正 | タイプ: NONE |
3次元再構成 | 解像度: 4.27 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 163150 / 対称性のタイプ: POINT |