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Yorodumi- PDB-4cak: Three-dimensional reconstruction of intact human integrin alphaII... -
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Basic information
| Entry | Database: PDB / ID: 4cak | |||||||||||||||
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| Title | Three-dimensional reconstruction of intact human integrin alphaIIbbeta3 in a phospholipid bilayer nanodisc | |||||||||||||||
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Keywords | CELL ADHESION / INTEGRIN / SINGLE PARTICLE RECONSTRUCTION | |||||||||||||||
| Function / homology | Function and homology informationregulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / tube development / alpha9-beta1 integrin-ADAM8 complex / response to platelet-derived growth factor / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / maintenance of postsynaptic specialization structure / alphav-beta3 integrin-vitronectin complex / platelet alpha granule membrane ...regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / tube development / alpha9-beta1 integrin-ADAM8 complex / response to platelet-derived growth factor / integrin alphaIIb-beta3 complex / regulation of postsynaptic neurotransmitter receptor diffusion trapping / maintenance of postsynaptic specialization structure / alphav-beta3 integrin-vitronectin complex / platelet alpha granule membrane / positive regulation of glomerular mesangial cell proliferation / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / smooth muscle cell migration / alphav-beta3 integrin-PKCalpha complex / fibrinogen binding / positive regulation of leukocyte migration / alphav-beta3 integrin-HMGB1 complex / negative regulation of lipid transport / vascular endothelial growth factor receptor 2 binding / angiogenesis involved in wound healing / positive regulation of vascular endothelial growth factor signaling pathway / regulation of release of sequestered calcium ion into cytosol / Elastic fibre formation / mesodermal cell differentiation / positive regulation of bone resorption / alphav-beta3 integrin-IGF-1-IGF1R complex / platelet-derived growth factor receptor binding / cell-cell adhesion mediated by integrin / filopodium membrane / extracellular matrix binding / glycinergic synapse / positive regulation of fibroblast migration / positive regulation of cell adhesion mediated by integrin / positive regulation of vascular endothelial growth factor receptor signaling pathway / apolipoprotein A-I-mediated signaling pathway / regulation of bone resorption / negative regulation of low-density lipoprotein particle clearance / apoptotic cell clearance / wound healing, spreading of epidermal cells / positive regulation of smooth muscle cell migration / integrin complex / Molecules associated with elastic fibres / heterotypic cell-cell adhesion / cell adhesion mediated by integrin / negative chemotaxis / positive regulation of osteoblast proliferation / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / cellular response to insulin-like growth factor stimulus / Syndecan interactions / p130Cas linkage to MAPK signaling for integrins / regulation of postsynaptic neurotransmitter receptor internalization / cell-substrate adhesion / protein disulfide isomerase activity / microvillus membrane / PECAM1 interactions / GRB2:SOS provides linkage to MAPK signaling for Integrins / negative regulation of endothelial cell apoptotic process / TGF-beta receptor signaling activates SMADs / lamellipodium membrane / fibronectin binding / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / Integrin cell surface interactions / ECM proteoglycans / substrate adhesion-dependent cell spreading / positive regulation of T cell migration / cell-matrix adhesion / embryo implantation / coreceptor activity / Integrin signaling / positive regulation of endothelial cell proliferation / positive regulation of smooth muscle cell proliferation / positive regulation of endothelial cell migration / cell adhesion molecule binding / integrin-mediated signaling pathway / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / response to activity / protein kinase C binding / wound healing / Signal transduction by L1 / cellular response to xenobiotic stimulus / regulation of actin cytoskeleton organization / cell-cell adhesion / cellular response to mechanical stimulus / platelet activation / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / platelet aggregation / VEGFA-VEGFR2 Pathway / integrin binding / ruffle membrane / blood coagulation / positive regulation of angiogenesis / Signaling by RAF1 mutants / cell-cell junction / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants Similarity search - Function | |||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / negative staining / Resolution: 20.5 Å | |||||||||||||||
Authors | Choi, W.S. / Rice, W.J. / Stokes, D.L. / Coller, B.S. | |||||||||||||||
Citation | Journal: Blood / Year: 2013Title: Three-dimensional reconstruction of intact human integrin αIIbβ3: new implications for activation-dependent ligand binding. Authors: Won-Seok Choi / William J Rice / David L Stokes / Barry S Coller / ![]() Abstract: Integrin αIIbβ3 plays a central role in hemostasis and thrombosis. We provide the first 3-dimensional reconstruction of intact purified αIIbβ3 in a nanodisc lipid bilayer. Unlike previous models, ...Integrin αIIbβ3 plays a central role in hemostasis and thrombosis. We provide the first 3-dimensional reconstruction of intact purified αIIbβ3 in a nanodisc lipid bilayer. Unlike previous models, it shows that the ligand-binding head domain is on top, pointing away from the membrane. Moreover, unlike the crystal structure of the recombinant ectodomain, the lower legs are not parallel, straight, and adjacent. Rather, the αIIb lower leg is bent between the calf-1 and calf-2 domains and the β3 Integrin-Epidermal Growth Factor (I-EGF) 2 to 4 domains are freely coiled rather than in a cleft between the β3 headpiece and the αIIb lower leg. Our data indicate an important role for the region that links the distal calf-2 and β-tail domains to their respective transmembrane (TM) domains in transmitting the conformational changes in the TM domains associated with inside-out activation. | |||||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 4cak.cif.gz | 433.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb4cak.ent.gz | 299.9 KB | Display | PDB format |
| PDBx/mmJSON format | 4cak.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ca/4cak ftp://data.pdbj.org/pub/pdb/validation_reports/ca/4cak | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 2281MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules AB
| #1: Protein | Mass: 104460.719 Da / Num. of mol.: 1 / Fragment: ECTODOMAIN, UNP RESIDUES 32-990 / Source method: isolated from a natural source / Details: FITTED FROM PDB ID 3FCS / Source: (natural) Homo sapiens (human) / Tissue: BLOOD / References: UniProt: P08514 |
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| #2: Protein | Mass: 76316.945 Da / Num. of mol.: 1 / Fragment: RESIDUES 27-716 / Source method: isolated from a natural source / Details: FITTED FROM PDB ID 3FCS / Source: (natural) Homo sapiens (human) / Cell line: PLATELET / Tissue: BLOOD / References: UniProt: P05106 |
-Sugars , 5 types, 7 molecules 
| #3: Polysaccharide | Source method: isolated from a genetically manipulated source #4: Polysaccharide | alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...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 | Source method: isolated from a genetically manipulated source #5: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(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 #6: Polysaccharide | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-2)-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 | Source method: isolated from a genetically manipulated source #7: Sugar | |
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-Details
| 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: INTEGRIN ALPHAIIBBETA3 IN LIPID BILAYER NANODISC / Type: COMPLEX / Details: MICROGRAPHS TAKEN ON CCD |
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| Buffer solution | Name: 150 MM NACL, 10 MM HEPES, PH 7.4, 1 MM CACL2 AND 1 MM MGCL2 pH: 7.4 Details: 150 MM NACL, 10 MM HEPES, PH 7.4, 1 MM CACL2 AND 1 MM MGCL2 |
| Specimen | Conc.: 0.02 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: YES / Vitrification applied: NO |
| EM staining | Type: NEGATIVE / Material: uranyl acetate |
| Specimen support | Details: CARBON |
| Vitrification | Details: VITRIFICATION 1 -- CRYOGEN- NONE, INSTRUMENT- NONE, |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Tecnai F20 / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TECNAI F20 / Date: Feb 1, 2010 Details: LOW DOSE PACKAGE USED. CCD MAGNIFICATION IS 1.76 TIMES FILM MAGNIFICATION |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 120 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 29000 X / Calibrated magnification: 50592 X / Nominal defocus max: 1500 nm / Nominal defocus min: 1200 nm / Cs: 2 mm |
| Specimen holder | Tilt angle max: 50 ° / Tilt angle min: 0 ° |
| Image recording | Electron dose: 13 e/Å2 / Film or detector model: GENERIC TVIPS (4k x 4k) |
| Image scans | Num. digital images: 1500 |
| Radiation wavelength | Relative weight: 1 |
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Processing
| EM software |
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| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
| 3D reconstruction | Method: RANDOM CONICAL TILT THEN REFERENCE BASED RECONSTRUCTION Resolution: 20.5 Å / Num. of particles: 25008 / Nominal pixel size: 2.96 Å / Actual pixel size: 2.96 Å / Magnification calibration: 23A LAYERLINE OF TMV Details: INITIAL MODEL FROM RANDOM CONICAL TILT FOLLOWED BY REFERENCE BASED REFINEMENT PDB FILE 3FCS WAS SPLIT INTO 20 SUBDOMAINS. THESE SUBDOMAINS WERE MANUALLY FITTED INTO THE EM VOLUME SUBMISSION ...Details: INITIAL MODEL FROM RANDOM CONICAL TILT FOLLOWED BY REFERENCE BASED REFINEMENT PDB FILE 3FCS WAS SPLIT INTO 20 SUBDOMAINS. THESE SUBDOMAINS WERE MANUALLY FITTED INTO THE EM VOLUME SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-2281. (DEPOSITION ID: 11378). Symmetry type: POINT | ||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Space: REAL / Target criteria: Cross-correlation coefficient / Details: METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY | ||||||||||||
| Atomic model building | PDB-ID: 3FCS Accession code: 3FCS / Source name: PDB / Type: experimental model | ||||||||||||
| Refinement | Highest resolution: 20.5 Å | ||||||||||||
| Refinement step | Cycle: LAST / Highest resolution: 20.5 Å
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About Yorodumi



Homo sapiens (human)
Citation
UCSF Chimera








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