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- PDB-7z3q: Crystal structure of the human leptin:LepR-CRH2 encounter complex... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7z3q | ||||||
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Title | Crystal structure of the human leptin:LepR-CRH2 encounter complex to 3.6 A resolution. | ||||||
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![]() | CYTOKINE / leptin / obesity / leptin receptor / LepR / adipose tissue / hypothalamus / immune system | ||||||
Function / homology | ![]() multicellular organism development / 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 / negative regulation of glucagon secretion / regulation of endothelial cell proliferation ...multicellular organism development / 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 / 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 / positive regulation of monoatomic ion transport / 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 / 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 / sexual reproduction / bone mineralization involved in bone maturation / 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 / negative regulation of D-glucose import / cellular response to leptin stimulus / prostaglandin secretion / cardiac muscle hypertrophy / hormone metabolic process / Signaling by Leptin / cytokine receptor activity / intestinal absorption / insulin secretion / positive regulation of p38MAPK cascade / aorta development / negative regulation of vasoconstriction / regulation of gluconeogenesis / peptide hormone receptor binding / eating behavior / glycogen metabolic process / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / cytokine binding / central nervous system neuron development / response to dietary excess / negative regulation of lipid storage / T cell differentiation / response to vitamin E / positive regulation of TOR signaling / Synthesis, secretion, and deacylation of Ghrelin / cell surface receptor signaling pathway via JAK-STAT / regulation of angiogenesis / adipose tissue development / negative regulation of gluconeogenesis / transport across blood-brain barrier / glial cell proliferation / positive regulation of insulin receptor signaling pathway / phagocytosis / positive regulation of T cell proliferation / energy homeostasis / cellular response to retinoic acid / positive regulation of interleukin-12 production / regulation of insulin secretion / cholesterol metabolic process / negative regulation of autophagy / response to activity / gluconeogenesis / positive regulation of interleukin-8 production / female pregnancy / determination of adult lifespan / positive regulation of receptor signaling pathway via JAK-STAT / response to insulin / placenta development / hormone activity / cytokine-mediated signaling pathway / lipid metabolic process / regulation of blood pressure / Transcriptional regulation of white adipocyte differentiation / positive regulation of interleukin-6 production / positive regulation of protein import into nucleus / cellular response to insulin stimulus / circadian rhythm / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Verstraete, K. / Verschueren, K. / Alexandra, T. / Savvides, S.N. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Mechanism of receptor assembly via the pleiotropic adipokine Leptin. Authors: Alexandra Tsirigotaki / Ann Dansercoer / Koen H G Verschueren / Iva Marković / Christoph Pollmann / Maximillian Hafer / Jan Felix / Catherine Birck / Wouter Van Putte / Dominiek Catteeuw / ...Authors: 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 / ![]() ![]() ![]() ![]() Abstract: 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. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 377.3 KB | Display | ![]() |
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PDB format | ![]() | 313 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 483.4 KB | Display | ![]() |
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Full document | ![]() | 490 KB | Display | |
Data in XML | ![]() | 30.8 KB | Display | |
Data in CIF | ![]() | 41.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7z3pC ![]() 7z3rC ![]() 8av2C ![]() 8avbC ![]() 8avcC ![]() 8avdC ![]() 8aveC ![]() 8avfC ![]() 8avoC ![]() 8b7qC ![]() 1ax8S ![]() 3v6oS S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
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Unit cell |
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Components
#1: Protein | Mass: 18605.061 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Details: The human leptin:LepR-CRH2 complex was produced by transient co-transfection in HEK293 FreeStyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tags were ...Details: The human leptin:LepR-CRH2 complex was produced by transient co-transfection in HEK293 FreeStyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tags were removed by a TEV-digest and the N-linked glycans were minimized by EndoH treatment. Source: (gene. exp.) ![]() ![]() #2: Protein | Mass: 26116.633 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Details: The human leptin:LepR-CRH2 complex was produced by transient co-transfection in HEK293 FreeStyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tags were ...Details: The human leptin:LepR-CRH2 complex was produced by transient co-transfection in HEK293 FreeStyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tags were removed by a TEV-digest and the N-linked glycans were minimized by EndoH treatment. Source: (gene. exp.) ![]() ![]() #3: Water | ChemComp-HOH / | Has protein modification | Y | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.18 Å3/Da / Density % sol: 43.53 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 Details: Index screen HT #F1 0.2 M L-proline 0.1 M HEPES pH 7.5 10% PEG 3350 cryo: 25% PEG400 Temp details: Temperature-controlled cabinet |
-Data collection
Diffraction | Mean temperature: 100 K / Ambient temp details: Cold nitrogen stream / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER2 X 16M / Detector: PIXEL / Date: Jun 6, 2020 |
Radiation | Monochromator: Si(111) crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.0332 Å / Relative weight: 1 |
Reflection | Resolution: 3.6→78.32 Å / Num. obs: 13958 / % possible obs: 100 % / Redundancy: 9.8 % / Biso Wilson estimate: 94.5 Å2 / CC1/2: 0.994 / Rrim(I) all: 0.334 / Net I/σ(I): 6 |
Reflection shell | Resolution: 3.6→3.94 Å / Redundancy: 10.1 % / Mean I/σ(I) obs: 1.2 / Num. unique obs: 3298 / CC1/2: 0.584 / Rrim(I) all: 2.085 / % possible all: 100 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1ax8, 3v6o Resolution: 3.617→60.57 Å / Cor.coef. Fo:Fc: 0.876 / Cor.coef. Fo:Fc free: 0.87 / Cross valid method: THROUGHOUT / SU Rfree Blow DPI: 0.782
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Displacement parameters | Biso mean: 185.02 Å2
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Refinement step | Cycle: LAST / Resolution: 3.617→60.57 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 3.62→3.65 Å
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Refinement TLS params. | Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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