+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-10000 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Lateral flagellar motor from Plesiomonas shigelloidea | |||||||||
Map data | Plesiomonas shigelloides latreal flagellar motor | |||||||||
Sample |
| |||||||||
Biological species | Plesiomonas shigelloides (bacteria) | |||||||||
Method | subtomogram averaging / cryo EM / Resolution: 120.0 Å | |||||||||
Authors | Ferreira JL / Beeby M | |||||||||
Funding support | United Kingdom, 2 items
| |||||||||
Citation | Journal: Front Microbiol / Year: 2021 Title: The "Jack-of-all-Trades" Flagellum From and Was Horizontally Acquired From an Ancestral β-Proteobacterium. Authors: Josie L Ferreira / Izaak Coleman / Max L Addison / Tobias Zachs / Bonnie L Quigley / Kristin Wuichet / Morgan Beeby / Abstract: The γ-proteobacteria are a group of diverse bacteria including pathogenic , and species. The majority swim in liquids with polar, sodium-driven flagella and swarm on surfaces with lateral, non- ...The γ-proteobacteria are a group of diverse bacteria including pathogenic , and species. The majority swim in liquids with polar, sodium-driven flagella and swarm on surfaces with lateral, non-chemotactic flagella. Notable exceptions are the enteric Enterobacteriaceae such as and . Many of the well-studied Enterobacteriaceae are gut bacteria that both swim and swarm with the same proton-driven peritrichous flagella. How different flagella evolved in closely related lineages, however, has remained unclear. Here, we describe our phylogenetic finding that Enterobacteriaceae flagella are not native polar or lateral γ-proteobacterial flagella but were horizontally acquired from an ancestral β-proteobacterium. Using electron cryo-tomography and subtomogram averaging, we confirmed that Enterobacteriaceae flagellar motors resemble contemporary β-proteobacterial motors and are distinct to the polar and lateral motors of other γ-proteobacteria. Structural comparisons support a model in which γ-proteobacterial motors have specialized, suggesting that acquisition of a β-proteobacterial flagellum may have been beneficial as a general-purpose motor suitable for adjusting to diverse conditions. This acquisition may have played a role in the development of the enteric lifestyle. | |||||||||
History |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_10000.map.gz | 3.5 MB | EMDB map data format | |
---|---|---|---|---|
Header (meta data) | emd-10000-v30.xml emd-10000.xml | 9.2 KB 9.2 KB | Display Display | EMDB header |
Images | emd_10000.png | 62.5 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10000 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10000 | HTTPS FTP |
-Validation report
Summary document | emd_10000_validation.pdf.gz | 212.8 KB | Display | EMDB validaton report |
---|---|---|---|---|
Full document | emd_10000_full_validation.pdf.gz | 211.9 KB | Display | |
Data in XML | emd_10000_validation.xml.gz | 5.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10000 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10000 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
---|
-Map
File | Download / File: emd_10000.map.gz / Format: CCP4 / Size: 3.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Annotation | Plesiomonas shigelloides latreal flagellar motor | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 8.28 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Sample components
-Entire : Lateral flagellar motor from Plesiomonas shigelloides
Entire | Name: Lateral flagellar motor from Plesiomonas shigelloides |
---|---|
Components |
|
-Supramolecule #1: Lateral flagellar motor from Plesiomonas shigelloides
Supramolecule | Name: Lateral flagellar motor from Plesiomonas shigelloides / type: complex / ID: 1 / Parent: 0 |
---|---|
Source (natural) | Organism: Plesiomonas shigelloides (bacteria) |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
Processing | subtomogram averaging |
Aggregation state | cell |
-Sample preparation
Buffer | pH: 7 / Details: LB |
---|---|
Vitrification | Cryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV |
Details | Cells grown to OD600 0.6 in LB, lysed with penicillin G |
-Electron microscopy
Microscope | FEI TECNAI F20 |
---|---|
Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Detector mode: INTEGRATING / Number grids imaged: 6 / Average exposure time: 0.8 sec. / Average electron dose: 120.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.0 mm / Nominal defocus max: 4.0 µm / Nominal defocus min: 3.0 µm / Nominal magnification: 25000 |
Sample stage | Specimen holder model: GATAN 914 HIGH TILT LIQUID NITROGEN CRYO TRANSFER TOMOGRAPHY HOLDER Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Tecnai F20 / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Applied symmetry - Point group: C100 (100 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 120.0 Å / Resolution method: FSC 0.5 CUT-OFF / Software - Name: PEET / Number subtomograms used: 317 |
---|---|
Extraction | Number tomograms: 200 / Number images used: 220 |
Final angle assignment | Type: OTHER |