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Yorodumi- PDB-7y1t: Complex of integrin alphaV/beta8 and L-TGF-beta1 at a ratio of 1:2 -
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Open data
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Basic information
| Entry | Database: PDB / ID: 7y1t | ||||||
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| Title | Complex of integrin alphaV/beta8 and L-TGF-beta1 at a ratio of 1:2 | ||||||
Components |
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Keywords | SIGNALING PROTEIN | ||||||
| Function / homology | Function and homology informationganglioside metabolic process / cellular response to acetaldehyde / frontal suture morphogenesis / Influenza Virus Induced Apoptosis / adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains / positive regulation of microglia differentiation / regulation of interleukin-23 production / branch elongation involved in mammary gland duct branching / positive regulation of primary miRNA processing / columnar/cuboidal epithelial cell maturation ...ganglioside metabolic process / cellular response to acetaldehyde / frontal suture morphogenesis / Influenza Virus Induced Apoptosis / adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains / positive regulation of microglia differentiation / regulation of interleukin-23 production / branch elongation involved in mammary gland duct branching / positive regulation of primary miRNA processing / columnar/cuboidal epithelial cell maturation / negative regulation of skeletal muscle tissue development / embryonic liver development / macrophage derived foam cell differentiation / response to laminar fluid shear stress / regulation of enamel mineralization / regulation of branching involved in mammary gland duct morphogenesis / regulation of cartilage development / TGFBR2 MSI Frameshift Mutants in Cancer / regulation of striated muscle tissue development / regulation of blood vessel remodeling / regulation of protein import into nucleus / regulatory T cell differentiation / tolerance induction to self antigen / extracellular matrix assembly / negative regulation of natural killer cell mediated cytotoxicity directed against tumor cell target / negative regulation of hyaluronan biosynthetic process / type III transforming growth factor beta receptor binding / myofibroblast differentiation / positive regulation of cardiac muscle cell differentiation / positive regulation of odontogenesis / connective tissue replacement involved in inflammatory response wound healing / Langerhans cell differentiation / TGFBR2 Kinase Domain Mutants in Cancer / positive regulation of smooth muscle cell differentiation / positive regulation of exit from mitosis / negative regulation of macrophage cytokine production / integrin alphav-beta8 complex / odontoblast differentiation / integrin alphav-beta6 complex / transforming growth factor beta production / negative regulation of entry of bacterium into host cell / integrin alphav-beta5 complex / opsonin binding / SMAD2/3 Phosphorylation Motif Mutants in Cancer / TGFBR1 KD Mutants in Cancer / positive regulation of isotype switching to IgA isotypes / positive regulation of mesenchymal stem cell proliferation / positive regulation of receptor signaling pathway via STAT / membrane protein intracellular domain proteolysis / positive regulation of extracellular matrix assembly / retina vasculature development in camera-type eye / heart valve morphogenesis / bronchiole development / TGFBR3 regulates TGF-beta signaling / mammary gland branching involved in thelarche / hyaluronan catabolic process / integrin alphav-beta1 complex / Cross-presentation of particulate exogenous antigens (phagosomes) / extracellular matrix protein binding / positive regulation of vasculature development / lens fiber cell differentiation / ATP biosynthetic process / negative regulation of extracellular matrix disassembly / type II transforming growth factor beta receptor binding / placenta blood vessel development / receptor catabolic process / positive regulation of branching involved in ureteric bud morphogenesis / Laminin interactions / positive regulation of chemotaxis / TGFBR1 LBD Mutants in Cancer / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / type I transforming growth factor beta receptor binding / entry into host cell by a symbiont-containing vacuole / positive regulation of mononuclear cell migration / response to salt / germ cell migration / alphav-beta3 integrin-PKCalpha complex / endoderm development / negative regulation of biomineral tissue development / phospholipid homeostasis / negative regulation of cell-cell adhesion mediated by cadherin / negative regulation of myoblast differentiation / positive regulation of vascular permeability / alphav-beta3 integrin-HMGB1 complex / negative regulation of lipid transport / hard palate development / regulation of phagocytosis / response to cholesterol / oligodendrocyte development / Elastic fibre formation / cell-cell junction organization / negative regulation of interleukin-17 production / phosphate-containing compound metabolic process / surfactant homeostasis / alphav-beta3 integrin-IGF-1-IGF1R complex / transforming growth factor beta binding / positive regulation of small GTPase mediated signal transduction / deubiquitinase activator activity / sprouting angiogenesis Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.24 Å | ||||||
Authors | Duan, Z. / Zhang, Z. | ||||||
| Funding support | China, 1items
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Citation | Journal: Nat Commun / Year: 2022Title: Specificity of TGF-β1 signal designated by LRRC33 and integrin αβ. Authors: Zelin Duan / Xuezhen Lin / Lixia Wang / Qiuxin Zhen / Yuefeng Jiang / Chuxin Chen / Jing Yang / Chia-Hsueh Lee / Yan Qin / Ying Li / Bo Zhao / Jianchuan Wang / Zhe Zhang / ![]() Abstract: Myeloid lineage cells present the latent form of transforming growth factor-β1 (L-TGF-β1) to the membrane using an anchor protein LRRC33. Integrin αβ activates extracellular L-TGF-β1 to trigger ...Myeloid lineage cells present the latent form of transforming growth factor-β1 (L-TGF-β1) to the membrane using an anchor protein LRRC33. Integrin αβ activates extracellular L-TGF-β1 to trigger the downstream signaling functions. However, the mechanism designating the specificity of TGF-β1 presentation and activation remains incompletely understood. Here, we report cryo-EM structures of human L-TGF-β1/LRRC33 and integrin αβ/L-TGF-β1 complexes. Combined with biochemical and cell-based analyses, we demonstrate that LRRC33 only presents L-TGF-β1 but not the -β2 or -β3 isoforms due to difference of key residues on the growth factor domains. Moreover, we reveal a 2:2 binding mode of integrin αβ and L-TGF-β1, which shows higher avidity and more efficient L-TGF-β1 activation than previously reported 1:2 binding mode. We also uncover that the disulfide-linked loop of the integrin subunit β determines its exquisite affinity to L-TGF-β1. Together, our findings provide important insights into the specificity of TGF-β1 signaling achieved by LRRC33 and integrin αβ. | ||||||
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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 | 7y1t.cif.gz | 208.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7y1t.ent.gz | 155.5 KB | Display | PDB format |
| PDBx/mmJSON format | 7y1t.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7y1t_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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| Full document | 7y1t_full_validation.pdf.gz | 1.5 MB | Display | |
| Data in XML | 7y1t_validation.xml.gz | 44.2 KB | Display | |
| Data in CIF | 7y1t_validation.cif.gz | 63.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/y1/7y1t ftp://data.pdbj.org/pub/pdb/validation_reports/y1/7y1t | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 33572MC ![]() 7y1rC 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
-Protein , 3 types, 3 molecules ABD
| #1: Protein | Mass: 69812.711 Da / Num. of mol.: 1 / Mutation: M401C Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ITGAV / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P06756 |
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| #2: Protein | Mass: 53017.355 Da / Num. of mol.: 1 / Mutation: V259C Source method: isolated from a genetically manipulated source Details: The first 21 residues (MDMRVPAQLLGLLLLWFSGVL) are signal peptides. Source: (gene. exp.) Homo sapiens (human) / Gene: ITGB8 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P26012 |
| #3: Protein | Mass: 43010.402 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: The first 16 residues (MPLLLLLPLLWAGALA) are signal peptides. Source: (gene. exp.) Homo sapiens (human) / Gene: TGFB1, TGFB / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: P01137 |
-Sugars , 4 types, 9 molecules 
| #4: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source | ||||
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| #5: Polysaccharide | Source method: isolated from a genetically manipulated source #6: Polysaccharide | alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-4)-[alpha-D-mannopyranose-(1-3)]beta-D- ...alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-4)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | Type: oligosaccharide / Mass: 1072.964 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source #7: Sugar | ChemComp-NAG / |
-Non-polymers , 2 types, 6 molecules 


| #8: Chemical | ChemComp-CA / #9: Chemical | ChemComp-MN / | |
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-Details
| Has ligand of interest | Y |
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| Has protein modification | Y |
-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: Complex of integrin alphaV/beta8 and L-TGF-beta1 at a ratio of 1:2 Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Molecular weight | Value: 0.21 MDa / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) / Cell: HEK293 |
| Buffer solution | pH: 7.5 |
| Specimen | Conc.: 3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| 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: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1200 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 60 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| EM software | Name: SerialEM / Category: image acquisition |
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| CTF correction | Type: NONE |
| 3D reconstruction | Resolution: 3.24 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 305011 / Symmetry type: POINT |
| Atomic model building | Protocol: OTHER |
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Homo sapiens (human)
China, 1items
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