+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-4897 | |||||||||
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Title | MinCD filament from Pseudomonas aeruginosa | |||||||||
Map data | Pseudomonas aeruginosa MinCD filament | |||||||||
Sample |
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Function / homology | Function and homology information regulation of cell septum assembly / negative regulation of cell division / division septum assembly / regulation of cell division / cell morphogenesis / cytoplasmic side of plasma membrane / ATP hydrolysis activity / ATP binding / cytosol Similarity search - Function | |||||||||
Biological species | Pseudomonas aeruginosa (bacteria) | |||||||||
Method | helical reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
Authors | Szewczak-Harris A / Wagstaff J / Lowe J | |||||||||
Funding support | United Kingdom, 2 items
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Citation | Journal: FEBS Lett / Year: 2019 Title: Cryo-EM structure of the MinCD copolymeric filament from Pseudomonas aeruginosa at 3.1 Å resolution. Authors: Andrzej Szewczak-Harris / James Wagstaff / Jan Löwe / Abstract: Positioning of the division site in many bacterial species relies on the MinCDE system, which prevents the cytokinetic Z-ring from assembling anywhere but the mid-cell, through an oscillatory ...Positioning of the division site in many bacterial species relies on the MinCDE system, which prevents the cytokinetic Z-ring from assembling anywhere but the mid-cell, through an oscillatory diffusion-reaction mechanism. MinD dimers bind to membranes and, via their partner MinC, inhibit the polymerization of cell division protein FtsZ into the Z-ring. MinC and MinD form polymeric assemblies in solution and on cell membranes. Here, we report the high-resolution cryo-EM structure of the copolymeric filaments of Pseudomonas aeruginosa MinCD. The filaments consist of three protofilaments made of alternating MinC and MinD dimers. The MinCD protofilaments are almost completely straight and assemble as single protofilaments on lipid membranes, which we also visualized by cryo-EM. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_4897.map.gz | 394.6 MB | EMDB map data format | |
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Header (meta data) | emd-4897-v30.xml emd-4897.xml | 11.9 KB 11.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_4897_fsc.xml | 17 KB | Display | FSC data file |
Images | emd_4897.png | 231.4 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4897 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4897 | HTTPS FTP |
-Validation report
Summary document | emd_4897_validation.pdf.gz | 288.8 KB | Display | EMDB validaton report |
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Full document | emd_4897_full_validation.pdf.gz | 287.9 KB | Display | |
Data in XML | emd_4897_validation.xml.gz | 15 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4897 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4897 | HTTPS FTP |
-Related structure data
Related structure data | 6riqMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_4897.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Pseudomonas aeruginosa MinCD filament | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.827 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : MinCD Filament
Entire | Name: MinCD Filament |
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Components |
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-Supramolecule #1: MinCD Filament
Supramolecule | Name: MinCD Filament / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2 |
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Source (natural) | Organism: Pseudomonas aeruginosa (bacteria) |
Recombinant expression | Organism: Escherichia coli (E. coli) |
-Macromolecule #1: MinC
Macromolecule | Name: MinC / type: protein_or_peptide / ID: 1 / Number of copies: 11 / Enantiomer: LEVO |
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Source (natural) | Organism: Pseudomonas aeruginosa (bacteria) |
Molecular weight | Theoretical: 15.107273 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: KDSAPRKPAE EPSPSVGEAR PEPAKAEEKP AEPVSRPTKV VKTPVRGGMQ IYAAGGDLIV LAAVSPGAEL LADGNIHVYG PMRGRALAG VKGDATARIF CQQLAAELVS IAGNYKVAED LRRSPQWGKA VHVSLSGDVL NITRL |
-Macromolecule #2: Site-determining protein
Macromolecule | Name: Site-determining protein / type: protein_or_peptide / ID: 2 / Number of copies: 11 / Enantiomer: LEVO |
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Source (natural) | Organism: Pseudomonas aeruginosa (bacteria) |
Molecular weight | Theoretical: 29.705143 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MAKILVVTSG KGGVGKTTTS AAIGTGLALR GFKTVIVDFD VGLRNLDLIM GCERRVVYDF VNVVNGEATL TQALIKDKRL ENLHVLAAS QTRDKDALTK EGVEKVMAEL RKDFEYIICD SPAGIEKGAH LAMYFADEAI VVTNPEVSSV RDSDRMLGLL A SKSQRAEK ...String: MAKILVVTSG KGGVGKTTTS AAIGTGLALR GFKTVIVDFD VGLRNLDLIM GCERRVVYDF VNVVNGEATL TQALIKDKRL ENLHVLAAS QTRDKDALTK EGVEKVMAEL RKDFEYIICD SPAGIEKGAH LAMYFADEAI VVTNPEVSSV RDSDRMLGLL A SKSQRAEK GEEPIKEHLL LTRYNPERVT KGEMLSVDDV EEILAIRLLG VIPESQAVLK ASNQGVPVIL DEQSDAGQAY SD AVDRLLG KEIPHRFLDV QKKGFLQRLF GGRE |
-Macromolecule #3: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 3 / Number of copies: 11 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #4: ADENOSINE-5'-TRIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 4 / Number of copies: 11 / Formula: ATP |
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Molecular weight | Theoretical: 507.181 Da |
Chemical component information | ChemComp-ATP: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | helical reconstruction |
Aggregation state | helical array |
-Sample preparation
Buffer | pH: 7 |
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Vitrification | Cryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI POLARA 300 |
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Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: INTEGRATING / Number real images: 3050 / Average electron dose: 38.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Tecnai Polara / Image courtesy: FEI Company |
-Image processing
-Atomic model buiding 1
Refinement | Space: RECIPROCAL / Protocol: AB INITIO MODEL |
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Output model | PDB-6riq: |