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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-30342 | |||||||||
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Title | Structure of alpha6beta1 integrin in complex with laminin-511 | |||||||||
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![]() | Integrin / Laminin / Fv-clasp / CELL ADHESION / CELL ADHESION-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() integrin alpha6-beta4 complex / laminin-5 complex / neuronal-glial interaction involved in cerebral cortex radial glia guided migration / laminin-11 complex / laminin-2 complex / laminin-8 complex / laminin-1 complex / laminin-10 complex / regulation of basement membrane organization / integrin alpha8-beta1 complex ...integrin alpha6-beta4 complex / laminin-5 complex / neuronal-glial interaction involved in cerebral cortex radial glia guided migration / laminin-11 complex / laminin-2 complex / laminin-8 complex / laminin-1 complex / laminin-10 complex / regulation of basement membrane organization / integrin alpha8-beta1 complex / ectodermal cell differentiation / neuregulin binding / : / L1CAM interactions / integrin alpha3-beta1 complex / integrin alpha5-beta1 complex / integrin alpha6-beta1 complex / integrin alpha7-beta1 complex / integrin alpha10-beta1 complex / integrin alpha11-beta1 complex / positive regulation of glutamate uptake involved in transmission of nerve impulse / extracellular matrix of synaptic cleft / myoblast fate specification / Type I hemidesmosome assembly / integrin alpha9-beta1 complex / regulation of collagen catabolic process / cardiac cell fate specification / integrin binding involved in cell-matrix adhesion / integrin alpha4-beta1 complex / trunk neural crest cell migration / cell adhesion mediator activity / cell-cell adhesion mediated by integrin / integrin alpha1-beta1 complex / hemidesmosome assembly / nail development / postsynapse organization / collagen binding involved in cell-matrix adhesion / Localization of the PINCH-ILK-PARVIN complex to focal adhesions / integrin alpha2-beta1 complex / reactive gliosis / formation of radial glial scaffolds / Other semaphorin interactions / cerebellar climbing fiber to Purkinje cell synapse / positive regulation of integrin-mediated signaling pathway / Formation of the ureteric bud / morphogenesis of embryonic epithelium / positive regulation of fibroblast growth factor receptor signaling pathway / CD40 signaling pathway / Fibronectin matrix formation / calcium-independent cell-matrix adhesion / basement membrane organization / regulation of synapse pruning / integrin alphav-beta1 complex / myelin sheath abaxonal region / skin morphogenesis / CHL1 interactions / cardiac muscle cell myoblast differentiation / morphogenesis of a polarized epithelium / MET interacts with TNS proteins / Laminin interactions / Formation of the dystrophin-glycoprotein complex (DGC) / EGR2 and SOX10-mediated initiation of Schwann cell myelination / leukocyte tethering or rolling / protein complex involved in cell-matrix adhesion / cardiac muscle cell differentiation / germ cell migration / cell projection organization / branching involved in salivary gland morphogenesis / endoderm development / Platelet Adhesion to exposed collagen / insulin-like growth factor I binding / myoblast fusion / positive regulation of vascular endothelial growth factor signaling pathway / regulation of epithelial cell proliferation / Elastic fibre formation / mesodermal cell differentiation / cell-substrate junction assembly / axon extension / myoblast differentiation / cell migration involved in sprouting angiogenesis / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / positive regulation of fibroblast migration / positive regulation of cell-substrate adhesion / wound healing, spreading of epidermal cells / integrin complex / heterotypic cell-cell adhesion / regulation of spontaneous synaptic transmission / skeletal system morphogenesis / odontogenesis / lamellipodium assembly / Assembly of collagen fibrils and other multimeric structures / extracellular matrix structural constituent / dendrite morphogenesis / sarcomere organization / Molecules associated with elastic fibres / MET activates PTK2 signaling / Basigin interactions / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / negative regulation of vasoconstriction / leukocyte migration Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||
![]() | Arimori T / Miyazaki N | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural mechanism of laminin recognition by integrin. Authors: Takao Arimori / Naoyuki Miyazaki / Emiko Mihara / Mamoru Takizawa / Yukimasa Taniguchi / Carlos Cabañas / Kiyotoshi Sekiguchi / Junichi Takagi / ![]() ![]() Abstract: Recognition of laminin by integrin receptors is central to the epithelial cell adhesion to basement membrane, but the structural background of this molecular interaction remained elusive. Here, we ...Recognition of laminin by integrin receptors is central to the epithelial cell adhesion to basement membrane, but the structural background of this molecular interaction remained elusive. Here, we report the structures of the prototypic laminin receptor α6β1 integrin alone and in complex with three-chain laminin-511 fragment determined via crystallography and cryo-electron microscopy, respectively. The laminin-integrin interface is made up of several binding sites located on all five subunits, with the laminin γ1 chain C-terminal portion providing focal interaction using two carboxylate anchor points to bridge metal-ion dependent adhesion site of integrin β1 subunit and Asn189 of integrin α6 subunit. Laminin α5 chain also contributes to the affinity and specificity by making electrostatic interactions with large surface on the β-propeller domain of α6, part of which comprises an alternatively spliced X1 region. The propeller sheet corresponding to this region shows unusually high mobility, suggesting its unique role in ligand capture. | |||||||||
History |
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Structure visualization
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 8.9 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 25.4 KB 25.4 KB | Display Display | ![]() |
Images | ![]() | 123.6 KB | ||
Filedesc metadata | ![]() | 8.2 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7cecMC ![]() 7ceaC ![]() 7cebC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.113 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Quaternary complex of alpha6beta1 integrin, laminin-511, TS2/16 F...
+Supramolecule #1: Quaternary complex of alpha6beta1 integrin, laminin-511, TS2/16 F...
+Macromolecule #1: Integrin alpha-6
+Macromolecule #2: Integrin beta-1
+Macromolecule #3: Laminin subunit alpha-5
+Macromolecule #4: Laminin subunit beta-1
+Macromolecule #5: Laminin subunit gamma-1
+Macromolecule #6: TS2/16 VH(S112C)-SARAH,TS2/16 VH(S112C)-SARAH
+Macromolecule #7: TS2/16 VL-SARAH(S37C),TS2/16 VL-SARAH(S37C)
+Macromolecule #8: HUTS-4 VH(S112C)-SARAH,HUTS-4 VH(S112C)-SARAH
+Macromolecule #9: HUTS-4 VL(C87Y)-SARAH(S37C),HUTS-4 VL(C87Y)-SARAH(S37C)
+Macromolecule #11: CALCIUM ION
+Macromolecule #12: 2-acetamido-2-deoxy-beta-D-glucopyranose
+Macromolecule #13: MANGANESE (II) ION
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.07 mg/mL | |||||||||||||||
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Buffer | pH: 7.5 Component:
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Grid | Model: Quantifoil R2/1 / Material: MOLYBDENUM / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. | |||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Phase plate: VOLTA PHASE PLATE |
Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: INTEGRATING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Number grids imaged: 1 / Number real images: 7768 / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 0.8 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 59000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |