+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7pg4 | ||||||
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タイトル | Low resolution Cryo-EM structure of the full-length insulin receptor bound to 2 insulin, conf 3 | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Insulin / Receptor / Complex | ||||||
機能・相同性 | 機能・相同性情報 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 / exocrine pancreas development / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly ...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 / exocrine pancreas development / insulin receptor complex / insulin-like growth factor I binding / insulin receptor activity / positive regulation of protein-containing complex disassembly / cargo receptor activity / dendritic spine maintenance / insulin binding / negative regulation of NAD(P)H oxidase activity / negative regulation of glycogen catabolic process / PTB domain binding / adrenal gland development / positive regulation of nitric oxide mediated signal transduction / negative regulation of fatty acid metabolic process / activation of protein kinase activity / negative regulation of feeding behavior / Signaling by Insulin receptor / IRS activation / Insulin processing / neuronal cell body membrane / regulation of protein secretion / positive regulation of peptide hormone secretion / positive regulation of respiratory burst / positive regulation of receptor internalization / negative regulation of acute inflammatory response / Regulation of gene expression in beta cells / alpha-beta T cell activation / amyloid-beta clearance / regulation of amino acid metabolic process / regulation of embryonic development / negative regulation of respiratory burst involved in inflammatory response / insulin receptor substrate binding / negative regulation of protein secretion / positive regulation of dendritic spine maintenance / transport across blood-brain barrier / positive regulation of glycogen biosynthetic process / Synthesis, secretion, and deacylation of Ghrelin / epidermis development / regulation of protein localization to plasma membrane / fatty acid homeostasis / negative regulation of lipid catabolic process / negative regulation of gluconeogenesis / Signal attenuation / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / COPI-mediated anterograde transport / phosphatidylinositol 3-kinase binding / positive regulation of lipid biosynthetic process / heart morphogenesis / 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 / transport vesicle / Insulin receptor recycling / insulin-like growth factor receptor binding / dendrite membrane / 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 / positive regulation of mitotic nuclear division / Insulin receptor signalling cascade / receptor-mediated endocytosis / positive regulation of nitric-oxide synthase activity / learning / 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 / regulation of transmembrane transporter activity / insulin receptor binding / positive regulation of MAP kinase activity / wound healing / receptor protein-tyrosine kinase / caveola / regulation of synaptic plasticity / negative regulation of protein catabolic process / cellular response to growth factor stimulus / hormone activity / receptor internalization / memory / positive regulation of neuron projection development / peptidyl-tyrosine phosphorylation / cellular response to insulin stimulus / cognition / positive regulation of protein localization to nucleus 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) | ||||||
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: 9.1 Å | ||||||
データ登録者 | Nielsen, J.A. / Slaaby, R. / Boesen, T. / Hummelshoj, T. / Brandt, J. / Schluckebier, G. / Nissen, P. | ||||||
資金援助 | デンマーク, 1件
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引用 | ジャーナル: J Mol Biol / 年: 2022 タイトル: Structural Investigations of Full-Length Insulin Receptor Dynamics and Signalling. 著者: Jeppe Nielsen / Jakob Brandt / Thomas Boesen / Tina Hummelshøj / Rita Slaaby / Gerd Schluckebier / Poul Nissen / 要旨: Insulin regulates glucose homeostasis via binding and activation of the insulin receptor dimer at two distinct pairs of binding sites 1 and 2. Here, we present cryo-EM studies of full-length human ...Insulin regulates glucose homeostasis via binding and activation of the insulin receptor dimer at two distinct pairs of binding sites 1 and 2. Here, we present cryo-EM studies of full-length human insulin receptor (hIR) in an active state obtained at non-saturating, physiologically relevant insulin conditions. Insulin binds asymmetrically to the receptor under these conditions, occupying up to three of the four possible binding sites. Deletion analysis of the receptor together with site specific peptides and insulin analogs used in binding studies show that both sites 1 and 2 are required for high insulin affinity. We identify a homotypic interaction of the fibronectin type III domain (FnIII-3) of IR resulting in tight interaction of membrane proximal domains of the active, asymmetric receptor dimer. Our results show how insulin binding at two distinct types of sites disrupts the autoinhibited apo-IR dimer and stabilizes the active dimer. We propose an insulin binding and activation mechanism, which is sequential, exhibits negative cooperativity, and is based on asymmetry at physiological insulin concentrations with one to three insulin molecules activating IR. | ||||||
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 | 7pg4.cif.gz | 331.8 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7pg4.ent.gz | 249.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7pg4.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 | 7pg4_validation.pdf.gz | 1.6 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7pg4_full_validation.pdf.gz | 1.6 MB | 表示 | |
XML形式データ | 7pg4_validation.xml.gz | 68.1 KB | 表示 | |
CIF形式データ | 7pg4_validation.cif.gz | 101.6 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/pg/7pg4 ftp://data.pdbj.org/pub/pdb/validation_reports/pg/7pg4 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 156697.578 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: INSR 発現宿主: Cricetulus griseus (モンゴルキヌゲネズミ) 参照: UniProt: P06213, receptor protein-tyrosine kinase #2: タンパク質・ペプチド | 分子量: 2383.698 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: Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P01308 #3: タンパク質・ペプチド | 分子量: 3433.953 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: Saccharomyces cerevisiae (パン酵母) / 参照: UniProt: P01308 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 |
-試料調製
構成要素 | 名称: DDM solubilised full-length human insulin receptor with three insulins bound タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.46 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: Cricetulus griseus (モンゴルキヌゲネズミ) | ||||||||||||||||||||
緩衝液 | pH: 7.8 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのタイプ: C-flat-2/2 | ||||||||||||||||||||
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 297 K / 詳細: Blotted for 3s prior to plunging |
-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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 平均露光時間: 15 sec. / 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||
3次元再構成 | 解像度: 9.1 Å / 解像度の算出法: OTHER / 粒子像の数: 26701 / 詳細: Masked FSC calculated with GSFSC in cryoSPARC2. / 対称性のタイプ: POINT | ||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT |