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Yorodumi- PDB-7z3q: Crystal structure of the human leptin:LepR-CRH2 encounter complex... -
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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. | ||||||
|  Components | 
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|  Keywords | CYTOKINE / leptin / obesity / leptin receptor / LepR / adipose tissue / hypothalamus / immune system | ||||||
| Function / homology |  Function and homology information 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 proliferation / regulation of natural killer cell mediated cytotoxicity / leptin receptor binding / regulation of bone remodeling / positive regulation of luteinizing hormone secretion / bone growth / regulation of natural killer cell activation / glycerol biosynthetic process / regulation of steroid biosynthetic process / elastin metabolic process / leptin-mediated signaling pathway / positive regulation of follicle-stimulating hormone secretion / regulation of intestinal cholesterol absorption / positive regulation of monoatomic ion transport / positive regulation of hepatic stellate cell activation / regulation of feeding behavior / regulation of brown fat cell differentiation / positive regulation of peroxisome proliferator activated receptor signaling pathway / regulation of nitric-oxide synthase activity / adult feeding behavior / activation of protein kinase C activity / bone mineralization involved in bone maturation / sexual reproduction / response to leptin / negative regulation of cartilage development / negative regulation of D-glucose import / ovulation from ovarian follicle / negative regulation of appetite / positive regulation of developmental growth / energy reserve metabolic process / leukocyte tethering or rolling / bile acid metabolic process / cellular response to leptin stimulus / prostaglandin secretion / cardiac muscle hypertrophy / Signaling by Leptin / positive regulation of p38MAPK cascade / hormone metabolic process / cytokine receptor activity / cell surface receptor signaling pathway via STAT / intestinal absorption / eating behavior / insulin secretion / aorta development / regulation of gluconeogenesis / negative regulation of vasoconstriction / response to vitamin E / glycogen metabolic process / peptide hormone receptor binding / fatty acid beta-oxidation / regulation of cytokine production involved in inflammatory response / cytokine binding / central nervous system neuron development / response to dietary excess / peptide hormone binding / T cell differentiation / negative regulation of lipid storage / Synthesis, secretion, and deacylation of Ghrelin / positive regulation of TOR signaling / regulation of angiogenesis / cell surface receptor signaling pathway via JAK-STAT / negative regulation of gluconeogenesis / positive regulation of insulin receptor signaling pathway / adipose tissue development / phagocytosis / glial cell proliferation / transport across blood-brain barrier / cholesterol metabolic process / energy homeostasis / cellular response to retinoic acid / positive regulation of T cell proliferation / positive regulation of interleukin-12 production / regulation of insulin secretion / negative regulation of autophagy / placenta development / response to activity / gluconeogenesis / determination of adult lifespan / positive regulation of interleukin-8 production / positive regulation of receptor signaling pathway via JAK-STAT / female pregnancy / response to insulin / circadian rhythm / hormone activity / Transcriptional regulation of white adipocyte differentiation / positive regulation of interleukin-6 production / positive regulation of protein import into nucleus / lipid metabolic process / regulation of blood pressure / glucose metabolic process Similarity search - Function | ||||||
| Biological species |  Homo sapiens (human) | ||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 3.617 Å | ||||||
|  Authors | Verstraete, K. / Verschueren, K. / Alexandra, T. / Savvides, S.N. | ||||||
| Funding support |  Belgium, 1items 
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|  Citation |  Journal: Nat Struct Mol Biol / Year: 2023 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 visualization
| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
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| PDBx/mmCIF format |  7z3q.cif.gz | 377.3 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb7z3q.ent.gz | 313 KB | Display |  PDB format | 
| PDBx/mmJSON format |  7z3q.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  7z3q_validation.pdf.gz | 483.4 KB | Display |  wwPDB validaton report | 
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| Full document |  7z3q_full_validation.pdf.gz | 490 KB | Display | |
| Data in XML |  7z3q_validation.xml.gz | 30.8 KB | Display | |
| Data in CIF |  7z3q_validation.cif.gz | 41.8 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/z3/7z3q  ftp://data.pdbj.org/pub/pdb/validation_reports/z3/7z3q | 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  F&H Search | 
- Links
Links
- Assembly
Assembly
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| Unit cell | 
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- Components
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.)  Homo sapiens (human) / Gene: LEP, OB, OBS / Plasmid: pTwist CMV BetaGlobin / Cell line (production host): HEK293 / Production host:  Homo sapiens (human) / Variant (production host): FreeStyle / References: UniProt: P41159 #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.)  Homo sapiens (human) / Gene: LEPR, DB, OBR / Plasmid: pTwist CMV BetaGlobin / Cell line (production host): HEK293 / Production host:  Homo sapiens (human) / Variant (production host): FreeStyle / References: UniProt: P48357 #3: Water | ChemComp-HOH / | Has protein modification | Y |  | 
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-Experimental details
-Experiment
| Experiment | Method:  X-RAY DIFFRACTION / Number of used crystals: 1 | 
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- Sample preparation
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:  SYNCHROTRON / Site:  PETRA III, EMBL c/o DESY  / Beamline: P14 (MX2) / Wavelength: 1.0332 Å | 
| 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 | 
- Processing
Processing
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENT 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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