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基本情報
登録情報 | ![]() | |||||||||
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タイトル | Mouse leptin:LEP-R complex cryoEM structure (3:3 model) | |||||||||
![]() | Sharpenend cryo-EM map following non-uniform refinement | |||||||||
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![]() | leptin / LEP-R / obesity / metabolism / energy balance / CYTOKINE | |||||||||
機能・相同性 | ![]() Synthesis, secretion, and deacylation of Ghrelin / regulation of lipoprotein lipid oxidation / cellular response to L-ascorbic acid / positive regulation of fat cell apoptotic process / negative regulation of glutamine transport / leptin receptor activity / regulation of transport / negative regulation of appetite by leptin-mediated signaling pathway / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / negative regulation of glucagon secretion ...Synthesis, secretion, and deacylation of Ghrelin / regulation of lipoprotein lipid oxidation / cellular response to L-ascorbic acid / positive regulation of fat cell apoptotic process / negative regulation of glutamine transport / leptin receptor activity / regulation of transport / negative regulation of appetite by leptin-mediated signaling pathway / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / negative regulation of glucagon secretion / regulation of endothelial cell proliferation / regulation of natural killer cell mediated cytotoxicity / regulation of natural killer cell proliferation / leptin receptor binding / bone growth / positive regulation of luteinizing hormone secretion / regulation of natural killer cell activation / glycerol biosynthetic process / elastin metabolic process / leptin-mediated signaling pathway / positive regulation of hepatic stellate cell activation / positive regulation of follicle-stimulating hormone secretion / regulation of steroid biosynthetic process / positive regulation of monoatomic ion transport / regulation of intestinal cholesterol absorption / regulation of bone remodeling / regulation of brown fat cell differentiation / positive regulation of peroxisome proliferator activated receptor signaling pathway / regulation of nitric-oxide synthase activity / adult feeding behavior / response to leptin / activation of protein kinase C activity / bone mineralization involved in bone maturation / regulation of lipid biosynthetic process / sexual reproduction / negative regulation of cartilage development / regulation of feeding behavior / ovulation from ovarian follicle / negative regulation of appetite / positive regulation of developmental growth / leukocyte tethering or rolling / energy reserve metabolic process / bile acid metabolic process / cellular response to leptin stimulus / negative regulation of D-glucose import / prostaglandin secretion / regulation of protein localization to nucleus / cardiac muscle hypertrophy / hormone metabolic process / positive regulation of p38MAPK cascade / intestinal absorption / regulation of fat cell differentiation / insulin secretion / regulation of metabolic process / aorta development / negative regulation of vasoconstriction / regulation of gluconeogenesis / peptide hormone receptor binding / glycogen metabolic process / eating behavior / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / central nervous system neuron development / response to dietary excess / negative regulation of lipid storage / T cell differentiation / response to vitamin E / cell surface receptor signaling pathway via JAK-STAT / positive regulation of TOR signaling / regulation of angiogenesis / adipose tissue development / negative regulation of gluconeogenesis / phagocytosis / glial cell proliferation / positive regulation of insulin receptor signaling pathway / positive regulation of T cell proliferation / energy homeostasis / cellular response to retinoic acid / positive regulation of interleukin-12 production / regulation of insulin secretion / negative regulation of autophagy / cholesterol metabolic process / response to activity / gluconeogenesis / positive regulation of interleukin-8 production / female pregnancy / positive regulation of receptor signaling pathway via JAK-STAT / determination of adult lifespan / response to insulin / placenta development / hormone activity / regulation of blood pressure / lipid metabolic process / positive regulation of interleukin-6 production / positive regulation of protein import into nucleus / cellular response to insulin stimulus / glucose metabolic process / circadian rhythm / positive regulation of reactive oxygen species metabolic process / positive regulation of tumor necrosis factor production 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.6 Å | |||||||||
![]() | Verstraete K / Savvides SN / Verschueren KG / Tsirigotaki A | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Mechanism of receptor assembly via the pleiotropic adipokine Leptin. 著者: Alexandra Tsirigotaki / Ann Dansercoer / Koen H G Verschueren / Iva Marković / Christoph Pollmann / Maximillian Hafer / Jan Felix / Catherine Birck / Wouter Van Putte / Dominiek Catteeuw / ...著者: Alexandra Tsirigotaki / Ann Dansercoer / Koen H G Verschueren / Iva Marković / Christoph Pollmann / Maximillian Hafer / Jan Felix / Catherine Birck / Wouter Van Putte / Dominiek Catteeuw / Jan Tavernier / J Fernando Bazan / Jacob Piehler / Savvas N Savvides / Kenneth Verstraete / ![]() ![]() ![]() ![]() 要旨: The adipokine Leptin activates its receptor LEP-R in the hypothalamus to regulate body weight and exerts additional pleiotropic functions in immunity, fertility and cancer. However, the structure and ...The adipokine Leptin activates its receptor LEP-R in the hypothalamus to regulate body weight and exerts additional pleiotropic functions in immunity, fertility and cancer. However, the structure and mechanism of Leptin-mediated LEP-R assemblies has remained unclear. Intriguingly, the signaling-competent isoform of LEP-R is only lowly abundant amid several inactive short LEP-R isoforms contributing to a mechanistic conundrum. Here we show by X-ray crystallography and cryo-EM that, in contrast to long-standing paradigms, Leptin induces type I cytokine receptor assemblies featuring 3:3 stoichiometry and demonstrate such Leptin-induced trimerization of LEP-R on living cells via single-molecule microscopy. In mediating these assemblies, Leptin undergoes drastic restructuring that activates its site III for binding to the Ig domain of an adjacent LEP-R. These interactions are abolished by mutations linked to obesity. Collectively, our study provides the structural and mechanistic framework for how evolutionarily conserved Leptin:LEP-R assemblies with 3:3 stoichiometry can engage distinct LEP-R isoforms to achieve signaling. | |||||||||
履歴 |
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-EMDBアーカイブ
マップデータ | ![]() | 40.5 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 23.1 KB 23.1 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 7.4 KB | 表示 | ![]() |
画像 | ![]() | 117.4 KB | ||
マスクデータ | ![]() | 42.9 MB | ![]() | |
Filedesc metadata | ![]() | 7.2 KB | ||
その他 | ![]() ![]() ![]() | 21.5 MB 39.8 MB 39.8 MB | ||
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 | ![]() 8avcMC ![]() 7z3pC ![]() 7z3qC ![]() 7z3rC ![]() 8av2C ![]() 8avbC ![]() 8avdC ![]() 8aveC ![]() 8avfC ![]() 8avoC ![]() 8b7qC M: このマップから作成された原子モデル 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
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
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注釈 | Sharpenend cryo-EM map following non-uniform refinement | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.658 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-マスク #1
ファイル | ![]() | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Non-sharpened cryo-EM map following non-uniform refinement
ファイル | emd_15678_additional_1.map | ||||||||||||
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注釈 | Non-sharpened cryo-EM map following non-uniform refinement | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half map A
ファイル | emd_15678_half_map_1.map | ||||||||||||
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注釈 | Half map A | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Half map B
ファイル | emd_15678_half_map_2.map | ||||||||||||
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注釈 | Half map B | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
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試料の構成要素
-全体 : Stucture of mouse leptin in complex with a trimerized form of the...
全体 | 名称: Stucture of mouse leptin in complex with a trimerized form of the mouse Lep-R extracellular region |
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要素 |
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-超分子 #1: Stucture of mouse leptin in complex with a trimerized form of the...
超分子 | 名称: Stucture of mouse leptin in complex with a trimerized form of the mouse Lep-R extracellular region タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#2 詳細: The mLEP-R ectodomain was C-terminally fused to a trimeric GCN4 isoleucine zipper tag and secreted from HEK93 FreeStyle cells and complex with refolded mouse leptin produced in E.coli. |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 444 KDa |
-分子 #1: Leptin
分子 | 名称: Leptin / タイプ: protein_or_peptide / ID: 1 詳細: N-terminally His-tagged mouse leptin was refolded from inclusion bodies produced in E.coli. コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 18.873283 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: MGSSHHHHHH PGGPGSENLY FQGGSTGGVP IQKVQDDTKT LIKTIVTRIN DISHTQSVSA KQRVTGLDFI PGLHPILSLS KMDQTLAVY QQVLTSLPSQ NVLQIANDLE NLRDLLHLLA FSKSCSLPQT SGLQKPESLD GVLEASLYST EVVALSRLQG S LQDILQQL DVSPEC UniProtKB: Leptin |
-分子 #2: Leptin receptor
分子 | 名称: Leptin receptor / タイプ: protein_or_peptide / ID: 2 / コピー数: 3 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 97.479391 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: LNLAYPISPW KFKLFCGPPN TTDDSFLSPA GAPNNASALK GASEAIVEAK FNSSGIYVPE LSKTVFHCCF GNEQGQNCSA LTDNTEGKT LASVVKASVF RQLGVNWDIE CWMKGDLTLF ICHMEPLPKN PFKNYDSKVH LLYDLPEVID DSPLPPLKDS F QTVQCNCS ...文字列: LNLAYPISPW KFKLFCGPPN TTDDSFLSPA GAPNNASALK GASEAIVEAK FNSSGIYVPE LSKTVFHCCF GNEQGQNCSA LTDNTEGKT LASVVKASVF RQLGVNWDIE CWMKGDLTLF ICHMEPLPKN PFKNYDSKVH LLYDLPEVID DSPLPPLKDS F QTVQCNCS LRGCECHVPV PRAKLNYALL MYLEITSAGV SFQSPLMSLQ PMLVVKPDPP LGLHMEVTDD GNLKISWDSQ TM APFPLQY QVKYLENSTI VREAAEIVSA TSLLVDSVLP GSSYEVQVRS KRLDGSGVWS DWSSPQVFTT QDVVYFPPKI LTS VGSNAS FHCIYKNENQ IISSKQIVWW RNLAEKIPEI QYSIVSDRVS KVTFSNLKAT RPRGKFTYDA VYCCNEQACH HRYA ELYVI DVNINISCET DGYLTKMTCR WSPSTIQSLV GSTVQLRYHR RSLYCPDSPS IHPTSEPKNC VLQRDGFYEC VFQPI FLLS GYTMWIRINH SLGSLDSPPT CVLPDSVVKP LPPSNVKAEI TVNTGLLKVS WEKPVFPENN LQFQIRYGLS GKEIQW KTH EVFDAKSKSA SLLVSDLCAV YVVQVRCRRL DGLGYWSNWS SPAYTLVMDV KVPMRGPEFW RKMDGDVTKK ERNVTLL WK PLTKNDSLCS VRRYVVKHRT AHNGTWSEDV GNRTNLTFLW TEPAHTVTVL AVNSLGASLV NFNLTFSWPM SKVSAVES L SAYPLSSSCV ILSWTLSPDD YSLLYLVIEW KILNEDDGMK WLRIPSNVKK FYIHDNFIPI EKYQFSLYPV FMEGVGKPK IINGFTKDAI DKQQNDAGST GGSGGSGGSG GSGGSRMKQI EDKIEEILSK IYHIENEIAR IKKLIGER UniProtKB: Leptin receptor |
-分子 #3: NICKEL (II) ION
分子 | 名称: NICKEL (II) ION / タイプ: ligand / ID: 3 / コピー数: 3 / 式: NI |
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分子量 | 理論値: 58.693 Da |
Chemical component information | ![]() ChemComp-NI: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.3 mg/mL | |||||||||
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緩衝液 | pH: 7.4 構成要素:
詳細: 20 mM HEPES, 150 mM NaCl, pH 7.4 | |||||||||
グリッド | モデル: C-flat-1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 30 sec. / 前処理 - 雰囲気: AIR | |||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 99 % / チャンバー内温度: 22 K / 装置: LEICA EM GP | |||||||||
詳細 | This sample was monodisperse. |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 1 / 実像数: 13230 / 平均電子線量: 45.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: OTHER / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.2 µm / 倍率(公称値): 105000 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT |
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得られたモデル | ![]() PDB-8avc: |