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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 metabolic process / negative regulation of locomotor rhythm / 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 ...negative regulation of metabolic process / negative regulation of locomotor rhythm / 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 / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / negative regulation of glucagon secretion / regulation of endothelial cell proliferation / leptin receptor binding / sexual reproduction / regulation of natural killer cell mediated cytotoxicity / regulation of bone remodeling / regulation of natural killer cell proliferation / positive regulation of luteinizing hormone secretion / regulation of natural killer cell activation / glycerol biosynthetic process / regulation of steroid biosynthetic process / negative regulation of eating behavior / elastin metabolic process / regulation of transport / leptin-mediated signaling pathway / positive regulation of follicle-stimulating hormone secretion / positive regulation of monoatomic ion transport / bone growth / protein-hormone receptor activity / regulation of intestinal cholesterol absorption / regulation of brown fat cell differentiation / positive regulation of hepatic stellate cell activation / positive regulation of peroxisome proliferator activated receptor signaling pathway / regulation of nitric-oxide synthase activity / regulation of feeding behavior / adult feeding behavior / bone mineralization involved in bone maturation / response to leptin / fatty acid catabolic process / negative regulation of cartilage development / regulation of lipid biosynthetic process / negative regulation of appetite / negative regulation of D-glucose import across plasma membrane / ovulation from ovarian follicle / positive regulation of developmental growth / energy reserve metabolic process / leukocyte tethering or rolling / prostaglandin secretion / cellular response to leptin stimulus / cardiac muscle hypertrophy / bile acid metabolic process / hormone metabolic process / positive regulation of p38MAPK cascade / cell surface receptor signaling pathway via STAT / regulation of protein localization to nucleus / cytokine receptor activity / regulation of fat cell differentiation / intestinal absorption / insulin secretion / regulation of gluconeogenesis / negative regulation of vasoconstriction / aorta development / eating behavior / response to vitamin E / glycogen metabolic process / fatty acid beta-oxidation / peptide hormone receptor binding / regulation of cytokine production involved in inflammatory response / response to dietary excess / cytokine binding / central nervous system neuron development / 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 TOR signaling / adipose tissue development / positive regulation of insulin receptor signaling pathway / phagocytosis / cell surface receptor signaling pathway via JAK-STAT / glial cell proliferation / cholesterol metabolic process / cellular response to retinoic acid / energy homeostasis / positive regulation of interleukin-12 production / positive regulation of T cell proliferation / placenta development / positive regulation of insulin secretion involved in cellular response to glucose stimulus / response to activity / negative regulation of autophagy / determination of adult lifespan / positive regulation of interleukin-8 production / positive regulation of receptor signaling pathway via JAK-STAT / lipid metabolic process / female pregnancy / hormone activity / circadian rhythm 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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| 1 |
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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