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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 8dh9 | |||||||||||||||||||||||||||||||||||||||
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| タイトル | Leptin-bound leptin receptor complex-D3-D7 | |||||||||||||||||||||||||||||||||||||||
要素 |
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キーワード | HORMONE / leptin / receptor / complex | |||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of locomotor rhythm / negative regulation of metabolic process / positive regulation of protein modification process / regulation of intestinal cholesterol absorption / Synthesis, secretion, and deacylation of Ghrelin / leptin receptor activity / regulation of lipoprotein lipid oxidation / cellular response to L-ascorbic acid / positive regulation of fat cell apoptotic process / negative regulation of glutamine transport ...negative regulation of locomotor rhythm / negative regulation of metabolic process / positive regulation of protein modification process / regulation of intestinal cholesterol absorption / Synthesis, secretion, and deacylation of Ghrelin / leptin receptor activity / regulation of lipoprotein lipid oxidation / cellular response to L-ascorbic acid / positive regulation of fat cell apoptotic process / negative regulation of glutamine transport / activation of protein kinase C activity / negative regulation of appetite by leptin-mediated signaling pathway / positive regulation of luteinizing hormone secretion / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / negative regulation of glucagon secretion / regulation of steroid biosynthetic process / negative regulation of cartilage development / elastin metabolic process / leptin receptor binding / ovulation from ovarian follicle / sexual reproduction / regulation of natural killer cell mediated cytotoxicity / regulation of bone remodeling / regulation of endothelial cell proliferation / regulation of natural killer cell proliferation / negative regulation of eating behavior / positive regulation of follicle-stimulating hormone secretion / glycerol biosynthetic process / leptin-mediated signaling pathway / regulation of transport / regulation of brown fat cell differentiation / positive regulation of monoatomic ion transport / bone growth / protein-hormone receptor activity / energy reserve metabolic process / positive regulation of hepatic stellate cell activation / positive regulation of peroxisome proliferator activated receptor signaling pathway / regulation of nitric-oxide synthase activity / adult feeding behavior / regulation of feeding behavior / regulation of catalytic activity / bone mineralization involved in bone maturation / regulation of lipid biosynthetic process / regulation of natural killer cell activation / response to leptin / fatty acid catabolic process / negative regulation of hydrolase activity / hormone metabolic process / negative regulation of D-glucose import across plasma membrane / bile acid metabolic process / negative regulation of appetite / positive regulation of developmental growth / prostaglandin secretion / leukocyte tethering or rolling / aorta development / cellular response to leptin stimulus / cardiac muscle hypertrophy / intestinal absorption / regulation of protein localization to nucleus / positive regulation of p38MAPK cascade / regulation of fat cell differentiation / cell surface receptor signaling pathway via STAT / regulation of gluconeogenesis / insulin secretion / cytokine receptor activity / response to dietary excess / glycogen metabolic process / negative regulation of vasoconstriction / response to vitamin E / eating behavior / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / peptide hormone receptor binding / adipose tissue development / central nervous system neuron development / cytokine binding / regulation of insulin secretion / peptide hormone binding / T cell differentiation / negative regulation of lipid storage / regulation of angiogenesis / negative regulation of gluconeogenesis / positive regulation of insulin receptor signaling pathway / positive regulation of TOR signaling / cholesterol metabolic process / glial cell proliferation / energy homeostasis / positive regulation of interleukin-12 production / cellular response to retinoic acid / phagocytosis / cell surface receptor signaling pathway via JAK-STAT / determination of adult lifespan / positive regulation of T cell proliferation / placenta development / negative regulation of autophagy / response to activity / positive regulation of insulin secretion involved in cellular response to glucose stimulus / positive regulation of interleukin-8 production / lipid metabolic process / positive regulation of receptor signaling pathway via JAK-STAT 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: 4.5 Å | |||||||||||||||||||||||||||||||||||||||
データ登録者 | Saxton, R.A. / Caveney, N.A. / Garcia, K.C. | |||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2023タイトル: Structural insights into the mechanism of leptin receptor activation. 著者: Robert A Saxton / Nathanael A Caveney / Maria Dolores Moya-Garzon / Karsten D Householder / Grayson E Rodriguez / Kylie A Burdsall / Jonathan Z Long / K Christopher Garcia / ![]() 要旨: Leptin is an adipocyte-derived protein hormone that promotes satiety and energy homeostasis by activating the leptin receptor (LepR)-STAT3 signaling axis in a subset of hypothalamic neurons. Leptin ...Leptin is an adipocyte-derived protein hormone that promotes satiety and energy homeostasis by activating the leptin receptor (LepR)-STAT3 signaling axis in a subset of hypothalamic neurons. Leptin signaling is dysregulated in obesity, however, where appetite remains elevated despite high levels of circulating leptin. To gain insight into the mechanism of leptin receptor activation, here we determine the structure of a stabilized leptin-bound LepR signaling complex using single particle cryo-EM. The structure reveals an asymmetric architecture in which a single leptin induces LepR dimerization via two distinct receptor-binding sites. Analysis of the leptin-LepR binding interfaces reveals the molecular basis for human obesity-associated mutations. Structure-based design of leptin variants that destabilize the asymmetric LepR dimer yield both partial and biased agonists that partially suppress STAT3 activation in the presence of wild-type leptin and decouple activation of STAT3 from LepR negative regulators. Together, these results reveal the structural basis for LepR activation and provide insights into the differential plasticity of signaling pathways downstream of LepR. | |||||||||||||||||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 8dh9.cif.gz | 236.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8dh9.ent.gz | 187.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8dh9.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/dh/8dh9 ftp://data.pdbj.org/pub/pdb/validation_reports/dh/8dh9 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 27433MC ![]() 8dh8C ![]() 8dhaC 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 F&H 検索 |
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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 | 分子量: 63674.754 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: P48356#2: タンパク質 | 分子量: 18724.555 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Homo sapiens (ヒト) / 参照: UniProt: P41160Has 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: Leptin Receptor Complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.2 |
| 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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: OTHER / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 電子線照射量: 53 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.20_4459: / 分類: 精密化 |
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| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 |
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3次元再構成 | 解像度: 4.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 137338 / 対称性のタイプ: POINT |
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万見について






米国, 1件
引用




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Homo sapiens (ヒト)
FIELD EMISSION GUN