+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8avd | ||||||
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タイトル | Cryo-EM structure for a 3:3 complex between mouse leptin and the mouse LEP-R ectodomain (local refinement) | ||||||
要素 |
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キーワード | CYTOKINE / leptin / LEP-R / obesity / metabolism / energy balance | ||||||
機能・相同性 | 機能・相同性情報 negative regulation of metabolic process / negative regulation of locomotor rhythm / negative regulation of eating behavior / 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 / negative regulation of appetite by leptin-mediated signaling pathway ...negative regulation of metabolic process / negative regulation of locomotor rhythm / negative regulation of eating behavior / 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 / 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 proliferation / leptin receptor binding / regulation of natural killer cell mediated cytotoxicity / protein-hormone receptor activity / bone growth / positive regulation of luteinizing hormone secretion / regulation of natural killer cell activation / glycerol biosynthetic process / positive regulation of monoatomic ion transport / elastin metabolic process / leptin-mediated signaling pathway / positive regulation of follicle-stimulating hormone secretion / regulation of steroid biosynthetic process / regulation of intestinal cholesterol absorption / regulation of bone remodeling / regulation of brown fat cell differentiation / positive regulation of peroxisome proliferator activated receptor signaling pathway / positive regulation of hepatic stellate cell activation / adult feeding behavior / regulation of nitric-oxide synthase activity / response to leptin / regulation of lipid biosynthetic process / bone mineralization involved in bone maturation / regulation of feeding behavior / sexual reproduction / activation of protein kinase C activity / fatty acid catabolic process / negative regulation of cartilage development / ovulation from ovarian follicle / negative regulation of appetite / positive regulation of developmental growth / leukocyte tethering or rolling / cellular response to leptin stimulus / energy reserve metabolic process / bile acid metabolic process / negative regulation of D-glucose import / tyrosine phosphorylation of STAT protein / prostaglandin secretion / regulation of protein localization to nucleus / cardiac muscle hypertrophy / regulation of metabolic process / hormone metabolic process / aorta development / intestinal absorption / cytokine receptor activity / insulin secretion / regulation of fat cell differentiation / positive regulation of p38MAPK cascade / negative regulation of vasoconstriction / eating behavior / peptide hormone receptor binding / regulation of gluconeogenesis / glycogen metabolic process / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / cytokine binding / central nervous system neuron development / positive regulation of insulin secretion involved in cellular response to glucose stimulus / peptide hormone binding / response to dietary excess / negative regulation of lipid storage / T cell differentiation / positive regulation of TOR signaling / response to vitamin E / glial cell proliferation / negative regulation of gluconeogenesis / regulation of angiogenesis / adipose tissue development / phagocytosis / positive regulation of insulin receptor signaling pathway / positive regulation of T cell proliferation / cellular response to retinoic acid / positive regulation of tyrosine phosphorylation of STAT protein / energy homeostasis / positive regulation of interleukin-12 production / cholesterol metabolic process / regulation of insulin secretion / negative regulation of autophagy / determination of adult lifespan / gluconeogenesis / response to activity / positive regulation of interleukin-8 production / female pregnancy / positive regulation of receptor signaling pathway via JAK-STAT / response to insulin / regulation of protein phosphorylation / placenta development 類似検索 - 分子機能 | ||||||
生物種 | Mus musculus (ハツカネズミ) | ||||||
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: 4.42 Å | ||||||
データ登録者 | Verstraete, K. / Savvides, S.N. / Verschueren, K.G. / Tsirigotaki, A. | ||||||
資金援助 | ベルギー, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2023 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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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8avd.cif.gz | 405.7 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8avd.ent.gz | 290.3 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8avd.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 | 8avd_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8avd_full_validation.pdf.gz | 1.4 MB | 表示 | |
XML形式データ | 8avd_validation.xml.gz | 59.1 KB | 表示 | |
CIF形式データ | 8avd_validation.cif.gz | 87.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/av/8avd ftp://data.pdbj.org/pub/pdb/validation_reports/av/8avd | HTTPS FTP |
-関連構造データ
関連構造データ | 15679MC 7z3pC 7z3qC 7z3rC 8av2C 8avbC 8avcC 8aveC 8avfC 8avoC 8b7qC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 18873.283 Da / 分子数: 3 / 由来タイプ: 組換発現 詳細: Mouse leptin was produced with an N-terminal His-tag and refolded from inclusion bodies produced in E. coli 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Lep, Ob / プラスミド: pET15b / 詳細 (発現宿主): pET15b-His-TEV-mLeptin / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 参照: UniProt: P41160 #2: タンパク質 | 分子量: 97479.391 Da / 分子数: 3 / 由来タイプ: 組換発現 詳細: The mLEP-R ectodomain was C-terminally fused to a trimeric GCN4 isoleucine zipper tag and secreted from HEK93 FreeStyle cells and complexed with refolded mouse leptin produced in E.coli. 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Lepr, Db, Obr / プラスミド: pTwist / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / Variant (発現宿主): FreeStyle / 参照: UniProt: P48356 #3: 化合物 | 研究の焦点であるリガンドがあるか | N | 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: Stucture of mouse leptin in complex with a trimerized form of the mouse Lep-R extracellular region タイプ: COMPLEX 詳細: The mLEP-R ectodomain was C-terminally fused to a trimeric GCN4 isoleucine zipper tag and secreted from HEK93 FreeStyle cells and complexed with refolded mouse leptin produced in E.coli. Entity ID: #1-#2 / 由来: RECOMBINANT | |||||||||||||||
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分子量 | 値: 0.444 MDa / 実験値: YES | |||||||||||||||
由来(天然) | 生物種: Mus musculus (ハツカネズミ) | |||||||||||||||
由来(組換発現) | 生物種: Homo sapiens (ヒト) / 株: 293 Freestyle / プラスミド: pTwist | |||||||||||||||
緩衝液 | pH: 7.4 / 詳細: 20 mM HEPES, 150 mM NaCl, pH 7.4 | |||||||||||||||
緩衝液成分 |
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試料 | 濃度: 0.3 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse. | |||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: C-flat-1.2/1.3 | |||||||||||||||
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 99 % / 凍結前の試料温度: 295 K |
-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: TFS 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: OTHER / 倍率(公称値): 105000 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): 1200 nm / Cs: 2.7 mm |
撮影 | 電子線照射量: 45 e/Å2 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 |
-解析
ソフトウェア |
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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: 141157 | |||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | |||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.42 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 54708 詳細: The final map was obtained via local refinement in cryoSPARC using a mask around the mouse leptin:LEP-R core region of the trimeric complex 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: 7Z3R Accession code: 7Z3R / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | |||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 240.44 Å2 | |||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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