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Yorodumi- EMDB-55521: Cryo-EM structure of alphaM/beta2:C3d-anti-CR3-Nb headpiece compl... -
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Basic information
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| Title | Cryo-EM structure of alphaM/beta2:C3d-anti-CR3-Nb headpiece complex (HPO2 3D class reconstruction) | |||||||||
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Keywords | phagocytosis / integrin / opsonisation / IMMUNE SYSTEM | |||||||||
| Function / homology | Function and homology informationintegrin alphaD-beta2 complex / integrin alphaX-beta2 complex / ectodermal cell differentiation / cellular extravasation / integrin alphaM-beta2 complex / positive regulation of neutrophil degranulation / integrin alphaL-beta2 complex / ICAM-3 receptor activity / response to Gram-positive bacterium / response to curcumin ...integrin alphaD-beta2 complex / integrin alphaX-beta2 complex / ectodermal cell differentiation / cellular extravasation / integrin alphaM-beta2 complex / positive regulation of neutrophil degranulation / integrin alphaL-beta2 complex / ICAM-3 receptor activity / response to Gram-positive bacterium / response to curcumin / positive regulation of microglial cell mediated cytotoxicity / C5L2 anaphylatoxin chemotactic receptor binding / oviduct epithelium development / regulation of triglyceride biosynthetic process / positive regulation of activation of membrane attack complex / vertebrate eye-specific patterning / leukocyte migration involved in inflammatory response / positive regulation of apoptotic cell clearance / complement component C3b binding / Alternative complement activation / complement-mediated synapse pruning / Toll Like Receptor 4 (TLR4) Cascade / : / neutrophil migration / positive regulation of type IIa hypersensitivity / Activation of C3 and C5 / positive regulation of lipid storage / positive regulation of phagocytosis, engulfment / complement activation, GZMK pathway / positive regulation of G protein-coupled receptor signaling pathway / complement-dependent cytotoxicity / positive regulation of D-glucose transmembrane transport / complement receptor mediated signaling pathway / complement activation, alternative pathway / complement activation / positive regulation of leukocyte adhesion to vascular endothelial cell / integrin complex / cell adhesion mediated by integrin / heterotypic cell-cell adhesion / cargo receptor activity / regulation of peptidyl-tyrosine phosphorylation / phagocytosis, engulfment / leukocyte cell-cell adhesion / neuron remodeling / endopeptidase inhibitor activity / negative regulation of dopamine metabolic process / receptor clustering / forebrain development / endodermal cell differentiation / amyloid-beta clearance / B cell activation / tertiary granule membrane / ficolin-1-rich granule membrane / complement activation, classical pathway / plasma membrane raft / positive regulation of vascular endothelial growth factor production / positive regulation of protein targeting to membrane / Integrin cell surface interactions / cellular response to low-density lipoprotein particle stimulus / response to mechanical stimulus / endothelial cell migration / Purinergic signaling in leishmaniasis infection / specific granule membrane / positive regulation of superoxide anion generation / heat shock protein binding / neutrophil chemotaxis / cell adhesion molecule binding / receptor-mediated endocytosis / Regulation of Complement cascade / response to ischemia / Peptide ligand-binding receptors / cell-matrix adhesion / Cell surface interactions at the vascular wall / response to amphetamine / integrin-mediated signaling pathway / Post-translational protein phosphorylation / response to bacterium / microglial cell activation / fatty acid metabolic process / cell-cell adhesion / positive regulation of protein phosphorylation / receptor internalization / positive regulation of receptor-mediated endocytosis / integrin binding / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / positive regulation of angiogenesis / positive regulation of nitric oxide biosynthetic process / azurophil granule lumen / response to estradiol / cell-cell signaling / regulation of cell shape / extracellular vesicle / amyloid-beta binding / signaling receptor activity / Interleukin-4 and Interleukin-13 signaling / secretory granule lumen / blood microparticle / G alpha (i) signalling events / cell adhesion Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.44 Å | |||||||||
Authors | Andersen GR / Fruergaard MU | |||||||||
| Funding support | 1 items
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Citation | Journal: To Be PublishedTitle: Cryo-EM structure of alphaM/beta2:C3d-anti-CR3-Nb headpiece complex (HPO2 3D class reconstruction) Authors: Andersen GR / Fruergaard MU | |||||||||
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_55521.map.gz | 32.4 MB | EMDB map data format | |
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| Header (meta data) | emd-55521-v30.xml emd-55521.xml | 26.1 KB 26.1 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_55521_fsc.xml | 8.4 KB | Display | FSC data file |
| Images | emd_55521.png | 44.9 KB | ||
| Filedesc metadata | emd-55521.cif.gz | 7.8 KB | ||
| Others | emd_55521_half_map_1.map.gz emd_55521_half_map_2.map.gz | 59.4 MB 59.4 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-55521 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-55521 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9t3yMC ![]() 52191 ![]() 54052 ![]() 54059 M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_55521.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.294 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #1
| File | emd_55521_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_55521_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Complement C3d-alphaM/beta2 headpiece complex (wt HPO2)
+Supramolecule #1: Complement C3d-alphaM/beta2 headpiece complex (wt HPO2)
+Supramolecule #2: AlphaM/beta2 headpiece complex
+Supramolecule #3: Nanobody fused with C3d with flexible linkers
+Macromolecule #1: Isoform 2 of Integrin alpha-M
+Macromolecule #2: Integrin beta-2
+Macromolecule #3: Nanobody,Complement C3dg fragment
+Macromolecule #7: CALCIUM ION
+Macromolecule #8: MANGANESE (II) ION
+Macromolecule #9: 2-acetamido-2-deoxy-beta-D-glucopyranose
+Macromolecule #10: water
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 2.88 mg/mL | |||||||||||||||
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| Buffer | pH: 7.5 Component:
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| Grid | Model: UltrAuFoil R0./1 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 180 sec. / Details: 25 mA current | |||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: 0.02 % w/v CHAPS added to sample just before vitrification. |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.1 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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| Output model | ![]() PDB-9t3y: |
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About Yorodumi



Keywords
Homo sapiens (human)
Authors
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FIELD EMISSION GUN

