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Open data
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Basic information
Entry | Database: PDB / ID: 8vsb | ||||||
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Title | L-TGF-b3/GARP | ||||||
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![]() | SIGNALING PROTEIN / TGFb / Complex | ||||||
Function / homology | ![]() establishment of protein localization to extracellular region / uterine wall breakdown / detection of hypoxia / frontal suture morphogenesis / embryonic neurocranium morphogenesis / type III transforming growth factor beta receptor binding / negative regulation of macrophage cytokine production / secondary palate development / positive regulation of tight junction disassembly / response to laminar fluid shear stress ...establishment of protein localization to extracellular region / uterine wall breakdown / detection of hypoxia / frontal suture morphogenesis / embryonic neurocranium morphogenesis / type III transforming growth factor beta receptor binding / negative regulation of macrophage cytokine production / secondary palate development / positive regulation of tight junction disassembly / response to laminar fluid shear stress / type II transforming growth factor beta receptor binding / type I transforming growth factor beta receptor binding / receptor ligand inhibitor activity / mammary gland development / cell-cell junction organization / transforming growth factor beta binding / digestive tract development / face morphogenesis / odontogenesis / positive regulation of filopodium assembly / negative regulation of cytokine production / Molecules associated with elastic fibres / lung alveolus development / negative regulation of activated T cell proliferation / negative regulation of vascular associated smooth muscle cell proliferation / inner ear development / TGF-beta receptor signaling activates SMADs / positive regulation of cell division / positive regulation of collagen biosynthetic process / positive regulation of SMAD protein signal transduction / ECM proteoglycans / salivary gland morphogenesis / positive regulation of epithelial to mesenchymal transition / positive regulation of stress fiber assembly / T-tubule / extracellular matrix / transforming growth factor beta receptor signaling pathway / platelet alpha granule lumen / response to progesterone / cytokine activity / female pregnancy / positive regulation of protein secretion / growth factor activity / negative regulation of transforming growth factor beta receptor signaling pathway / response to estrogen / Platelet degranulation / regulation of cell population proliferation / : / negative regulation of neuron apoptotic process / in utero embryonic development / response to hypoxia / positive regulation of MAPK cascade / positive regulation of apoptotic process / negative regulation of cell population proliferation / neuronal cell body / intracellular membrane-bounded organelle / positive regulation of cell population proliferation / positive regulation of gene expression / protein-containing complex binding / positive regulation of DNA-templated transcription / cell surface / positive regulation of transcription by RNA polymerase II / extracellular space / extracellular region / nucleoplasm / identical protein binding / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.93 Å | ||||||
![]() | Jin, M. / Cheng, Y. / Nishimura, S.L. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Dynamic allostery drives autocrine and paracrine TGF-β signaling. Authors: Mingliang Jin / Robert I Seed / Guoqing Cai / Tiffany Shing / Li Wang / Saburo Ito / Anthony Cormier / Stephanie A Wankowicz / Jillian M Jespersen / Jody L Baron / Nicholas D Carey / Melody ...Authors: Mingliang Jin / Robert I Seed / Guoqing Cai / Tiffany Shing / Li Wang / Saburo Ito / Anthony Cormier / Stephanie A Wankowicz / Jillian M Jespersen / Jody L Baron / Nicholas D Carey / Melody G Campbell / Zanlin Yu / Phu K Tang / Pilar Cossio / Weihua Wen / Jianlong Lou / James Marks / Stephen L Nishimura / Yifan Cheng / ![]() Abstract: TGF-β, essential for development and immunity, is expressed as a latent complex (L-TGF-β) non-covalently associated with its prodomain and presented on immune cell surfaces by covalent association ...TGF-β, essential for development and immunity, is expressed as a latent complex (L-TGF-β) non-covalently associated with its prodomain and presented on immune cell surfaces by covalent association with GARP. Binding to integrin αvβ8 activates L-TGF-β1/GARP. The dogma is that mature TGF-β must physically dissociate from L-TGF-β1 for signaling to occur. Our previous studies discovered that αvβ8-mediated TGF-β autocrine signaling can occur without TGF-β1 release from its latent form. Here, we show that mice engineered to express TGF-β1 that cannot release from L-TGF-β1 survive without early lethal tissue inflammation, unlike those with TGF-β1 deficiency. Combining cryogenic electron microscopy with cell-based assays, we reveal a dynamic allosteric mechanism of autocrine TGF-β1 signaling without release where αvβ8 binding redistributes the intrinsic flexibility of L-TGF-β1 to expose TGF-β1 to its receptors. Dynamic allostery explains the TGF-β3 latency/activation mechanism and why TGF-β3 functions distinctly from TGF-β1, suggesting that it broadly applies to other flexible cell surface receptor/ligand systems. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 184.5 KB | Display | ![]() |
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PDB format | ![]() | 140.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 43492MC ![]() 8vs6C ![]() 8vscC ![]() 8vsdC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 44858.094 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Protein | | Mass: 66056.297 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Has protein modification | Y | |
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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: L-TGF-b3/GARP complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 0.18 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 |
Specimen | 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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 1100 nm |
Image recording | Electron dose: 47 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 2.93 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 151804 / Symmetry type: POINT | ||||||||||||||||||||||||
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