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- PDB-7z3r: Crystal structure of the mouse leptin:LepR-IgCRH2 complex to 2.95... -
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Basic information
Entry | Database: PDB / ID: 7z3r | ||||||
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Title | Crystal structure of the mouse leptin:LepR-IgCRH2 complex to 2.95 A resolution. | ||||||
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![]() | CYTOKINE / leptin / obesity / leptin receptor / LepR / adipose tissue / hypothalamus / immune system | ||||||
Function / homology | ![]() 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 / regulation of transport / 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 ...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 / regulation of transport / 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 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 / 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 / positive regulation of monoatomic ion transport / 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 / bone mineralization involved in bone maturation / regulation of lipid biosynthetic process / sexual reproduction / 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 / cellular response to leptin stimulus / negative regulation of D-glucose import / prostaglandin secretion / regulation of protein localization to nucleus / cardiac muscle hypertrophy / hormone metabolic process / positive regulation of p38MAPK cascade / intestinal absorption / regulation of fat cell differentiation / insulin secretion / regulation of metabolic process / aorta development / negative regulation of vasoconstriction / regulation of gluconeogenesis / peptide hormone receptor binding / glycogen metabolic process / eating behavior / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / central nervous system neuron development / response to dietary excess / negative regulation of lipid storage / T cell differentiation / response to vitamin E / cell surface receptor signaling pathway via JAK-STAT / positive regulation of TOR signaling / regulation of angiogenesis / adipose tissue development / negative regulation of gluconeogenesis / phagocytosis / glial cell proliferation / positive regulation of insulin receptor signaling pathway / positive regulation of T cell proliferation / energy homeostasis / cellular response to retinoic acid / positive regulation of interleukin-12 production / regulation of insulin secretion / negative regulation of autophagy / cholesterol metabolic process / response to activity / gluconeogenesis / positive regulation of interleukin-8 production / female pregnancy / positive regulation of receptor signaling pathway via JAK-STAT / determination of adult lifespan / response to insulin / placenta development / hormone activity / regulation of blood pressure / lipid metabolic process / positive regulation of interleukin-6 production / positive regulation of protein import into nucleus / cellular response to insulin stimulus / glucose metabolic process / circadian rhythm / positive regulation of reactive oxygen species metabolic process / positive regulation of tumor necrosis factor production Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Verstraete, K. / Verschueren, K. / Savvides, S.N. / Tsirigotaki, A. | ||||||
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. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 198.1 KB | Display | ![]() |
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PDB format | ![]() | 159.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7z3pC ![]() 7z3qC ![]() 8av2C ![]() 8avbC ![]() 8avcC ![]() 8avdC ![]() 8aveC ![]() 8avfC ![]() 8avoC ![]() 8b7qC ![]() 1ax8S S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 16220.559 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Mouse leptin (Uniprot ID P41160) was refolded from inclusion bodies produced in E.coli. Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#2: Protein | Mass: 37429.477 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: The mouse LepR-IgCRH2 fragment was produced in HEK293 Freestyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tag was removed with TEV protease and the N- ...Details: The mouse LepR-IgCRH2 fragment was produced in HEK293 Freestyle cells in the presence of kifunensine. Prior to crystallisation, the N-terminal His-tag was removed with TEV protease and the N-terminal glycans were trimmed with EndoH. Source: (gene. exp.) ![]() ![]() ![]() |
#3: Sugar | ChemComp-NAG / |
#4: Water | ChemComp-HOH / |
Has ligand of interest | N |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.93 Å3/Da / Density % sol: 68.73 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 Details: Proplex HT #G7 3.0 M formate 0.1 M Tris pH 7.5 cryo: 4 M Na-formate + 10% ethylene glycol Temp details: Temperature-controlled cabinet |
-Data collection
Diffraction | Mean temperature: 100 K / Ambient temp details: N2 cryo-stream / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER2 X 16M / Detector: PIXEL / Date: Oct 31, 2020 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.9762 Å / Relative weight: 1 |
Reflection | Resolution: 2.95→83.06 Å / Num. obs: 18075 / % possible obs: 100 % / Redundancy: 20 % / Biso Wilson estimate: 95.3 Å2 / CC1/2: 0.999 / Rrim(I) all: 0.151 / Net I/σ(I): 17.7 |
Reflection shell | Resolution: 2.95→3.13 Å / Redundancy: 20.6 % / Mean I/σ(I) obs: 1.1 / Num. unique obs: 2876 / CC1/2: 0.417 / Rrim(I) all: 3.4 / % possible all: 100 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1ax8 Resolution: 2.951→66.34 Å / Cor.coef. Fo:Fc: 0.943 / Cor.coef. Fo:Fc free: 0.927 / SU R Cruickshank DPI: 0.633 / Cross valid method: THROUGHOUT / SU R Blow DPI: 0.597 / SU Rfree Blow DPI: 0.32 / SU Rfree Cruickshank DPI: 0.328
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Displacement parameters | Biso mean: 111.92 Å2
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Refine analyze | Luzzati coordinate error obs: 0.42 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.951→66.34 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.951→2.97 Å
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Refinement TLS params. | Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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