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Open data
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Basic information
| Entry | Database: PDB / ID: 8dh8 | |||||||||||||||||||||||||||||||||||||||||||||
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| Title | Leptin-bound leptin receptor complex-full ECD | |||||||||||||||||||||||||||||||||||||||||||||
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Keywords | HORMONE / Ob / receptor / cytokine / signaling protein | |||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationnegative 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 Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.9 Å | |||||||||||||||||||||||||||||||||||||||||||||
Authors | Saxton, R.A. / Caveney, N.A. / Garcia, K.C. | |||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2023Title: Structural insights into the mechanism of leptin receptor activation. Authors: 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 / ![]() Abstract: 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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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8dh8.cif.gz | 235.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8dh8.ent.gz | 156.1 KB | Display | PDB format |
| PDBx/mmJSON format | 8dh8.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dh/8dh8 ftp://data.pdbj.org/pub/pdb/validation_reports/dh/8dh8 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 27432MC ![]() 8dh9C ![]() 8dhaC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 97375.273 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Homo sapiens (human) / References: UniProt: P48356#2: Protein | | Mass: 15502.702 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Homo sapiens (human) / References: UniProt: P41160Has protein modification | N | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Leptin Receptor Complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.2 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: OTHER / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 53 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.20_4459: / Classification: refinement |
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| EM software | Name: PHENIX / Category: model refinement |
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3D reconstruction | Resolution: 5.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 270721 / Symmetry type: POINT |
| Refinement | Highest resolution: 5.9 Å |
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United States, 1items
Citation




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Homo sapiens (human)
FIELD EMISSION GUN