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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 | ||||||||||||
Components |
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Keywords | CELL ADHESION / INTEGRIN / SINGLE PARTICLE RECONSTRUCTION | ||||||||||||
Function / homology | Function and homology information tube development / regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / regulation of postsynaptic neurotransmitter receptor diffusion trapping / alphav-beta3 integrin-vitronectin complex / maintenance of postsynaptic specialization structure / positive regulation of glomerular mesangial cell proliferation / regulation of extracellular matrix organization ...tube development / regulation of serotonin uptake / positive regulation of adenylate cyclase-inhibiting opioid receptor signaling pathway / alpha9-beta1 integrin-ADAM8 complex / regulation of trophoblast cell migration / regulation of postsynaptic neurotransmitter receptor diffusion trapping / alphav-beta3 integrin-vitronectin complex / maintenance of postsynaptic specialization structure / positive regulation of glomerular mesangial cell proliferation / regulation of extracellular matrix organization / platelet alpha granule membrane / integrin alphav-beta3 complex / negative regulation of lipoprotein metabolic process / alphav-beta3 integrin-PKCalpha complex / fibrinogen binding / glycinergic synapse / alphav-beta3 integrin-HMGB1 complex / vascular endothelial growth factor receptor 2 binding / blood coagulation, fibrin clot formation / negative regulation of lipid transport / negative regulation of low-density lipoprotein receptor activity / Elastic fibre formation / cell-substrate junction assembly / regulation of release of sequestered calcium ion into cytosol / mesodermal cell differentiation / alphav-beta3 integrin-IGF-1-IGF1R complex / angiogenesis involved in wound healing / platelet-derived growth factor receptor binding / filopodium membrane / extracellular matrix binding / positive regulation of fibroblast migration / positive regulation of vascular endothelial growth factor receptor signaling pathway / regulation of postsynaptic neurotransmitter receptor internalization / apolipoprotein A-I-mediated signaling pathway / regulation of bone resorption / wound healing, spreading of epidermal cells / apoptotic cell clearance / heterotypic cell-cell adhesion / integrin complex / positive regulation of cell adhesion mediated by integrin / Molecules associated with elastic fibres / cellular response to insulin-like growth factor stimulus / positive regulation of leukocyte migration / positive regulation of cell-matrix adhesion / cell adhesion mediated by integrin / smooth muscle cell migration / microvillus membrane / Syndecan interactions / negative chemotaxis / p130Cas linkage to MAPK signaling for integrins / cellular response to platelet-derived growth factor stimulus / protein disulfide isomerase activity / cell-substrate adhesion / positive regulation of smooth muscle cell migration / activation of protein kinase activity / positive regulation of osteoblast proliferation / TGF-beta receptor signaling activates SMADs / PECAM1 interactions / lamellipodium membrane / GRB2:SOS provides linkage to MAPK signaling for Integrins / negative regulation of macrophage derived foam cell differentiation / negative regulation of lipid storage / platelet-derived growth factor receptor signaling pathway / fibronectin binding / ECM proteoglycans / positive regulation of T cell migration / positive regulation of bone resorption / Integrin cell surface interactions / coreceptor activity / negative regulation of endothelial cell apoptotic process / positive regulation of substrate adhesion-dependent cell spreading / embryo implantation / positive regulation of endothelial cell proliferation / cell adhesion molecule binding / Integrin signaling / substrate adhesion-dependent cell spreading / cell-matrix adhesion / protein kinase C binding / positive regulation of endothelial cell migration / response to activity / Signal transduction by L1 / integrin-mediated signaling pathway / regulation of actin cytoskeleton organization / positive regulation of smooth muscle cell proliferation / Signaling by high-kinase activity BRAF mutants / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / wound healing / MAP2K and MAPK activation / cell-cell adhesion / platelet aggregation / ruffle membrane / platelet activation / VEGFA-VEGFR2 Pathway / cellular response to mechanical stimulus / positive regulation of angiogenesis / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / regulation of protein localization 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: 2013 Title: 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. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 4cak.cif.gz | 426.4 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 (ref.) |
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Similar structure data |
-Links
-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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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-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, |
-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 FIELDBright-field microscopy / 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 |
-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 | ||||||||||||
Refinement | Highest resolution: 20.5 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 20.5 Å
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