+Open data
-Basic information
Entry | Database: PDB / ID: 7nvg | |||||||||||||||
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Title | Salmonella flagellar basal body refined in C1 map | |||||||||||||||
Components |
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Keywords | PROTEIN TRANSPORT / bacterial flagellum / flagella / basal body | |||||||||||||||
Function / homology | Function and homology information bacterial-type flagellum basal body, distal rod, L ring / bacterial-type flagellum basal body, distal rod, P ring / bacterial-type flagellum basal body, distal rod / bacterial-type flagellum basal body, rod / bacterial-type flagellum organization / bacterial-type flagellum basal body, MS ring / bacterial-type flagellum basal body / bacterial-type flagellum-dependent swarming motility / bacterial-type flagellum assembly / cytoskeletal motor activity ...bacterial-type flagellum basal body, distal rod, L ring / bacterial-type flagellum basal body, distal rod, P ring / bacterial-type flagellum basal body, distal rod / bacterial-type flagellum basal body, rod / bacterial-type flagellum organization / bacterial-type flagellum basal body, MS ring / bacterial-type flagellum basal body / bacterial-type flagellum-dependent swarming motility / bacterial-type flagellum assembly / cytoskeletal motor activity / bacterial-type flagellum-dependent cell motility / protein secretion / protein targeting / cell outer membrane / outer membrane-bounded periplasmic space / structural molecule activity / plasma membrane Similarity search - Function | |||||||||||||||
Biological species | Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | |||||||||||||||
Authors | Johnson, S. / Furlong, E. / Lea, S.M. | |||||||||||||||
Funding support | United Kingdom, 4items
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Citation | Journal: Nat Microbiol / Year: 2021 Title: Molecular structure of the intact bacterial flagellar basal body. Authors: Steven Johnson / Emily J Furlong / Justin C Deme / Ashley L Nord / Joseph J E Caesar / Fabienne F V Chevance / Richard M Berry / Kelly T Hughes / Susan M Lea / Abstract: The bacterial flagellum is a macromolecular protein complex that enables motility in many species. Bacterial flagella self-assemble a strong, multicomponent drive shaft that couples rotation in the ...The bacterial flagellum is a macromolecular protein complex that enables motility in many species. Bacterial flagella self-assemble a strong, multicomponent drive shaft that couples rotation in the inner membrane to the micrometre-long flagellar filament that powers bacterial swimming in viscous fluids. Here, we present structures of the intact Salmonella flagellar basal body, encompassing the inner membrane rotor, drive shaft and outer-membrane bushing, solved using cryo-electron microscopy to resolutions of 2.2-3.7 Å. The structures reveal molecular details of how 173 protein molecules of 13 different types assemble into a complex spanning two membranes and a cell wall. The helical drive shaft at one end is intricately interwoven with the rotor component with both the export gate complex and the proximal rod forming interactions with the MS-ring. At the other end, the drive shaft distal rod passes through the LP-ring bushing complex, which functions as a molecular bearing anchored in the outer membrane through interactions with the lipopolysaccharide. The in situ structure of a protein complex capping the drive shaft provides molecular insights into the assembly process of this molecular machine. | |||||||||||||||
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 | 7nvg.cif.gz | 5.2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7nvg.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7nvg.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7nvg_validation.pdf.gz | 2.9 MB | Display | wwPDB validaton report |
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Full document | 7nvg_full_validation.pdf.gz | 2.9 MB | Display | |
Data in XML | 7nvg_validation.xml.gz | 695.3 KB | Display | |
Data in CIF | 7nvg_validation.cif.gz | 1.1 MB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/nv/7nvg ftp://data.pdbj.org/pub/pdb/validation_reports/nv/7nvg | HTTPS FTP |
-Related structure data
Related structure data | 12603MC 7bglC 7bhqC 7binC 7bj2C 7bk0C C: citing same article (ref.) M: map data used to model this data |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 5 types, 97 molecules A1B1C1D1E1F1G1H1I1J1K1L1M1N1O1P1Q1R1S1T1U1V1W1X1Y1Z1a1b1c1d1...
#1: Protein | Mass: 61295.645 Da / Num. of mol.: 34 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: P15928 #5: Protein | Mass: 11087.662 Da / Num. of mol.: 6 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0D6FLN2 #10: Protein | Mass: 24726.666 Da / Num. of mol.: 26 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0J5DWE9 #11: Protein | Mass: 38194.176 Da / Num. of mol.: 26 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0F7J5J5 #12: Protein | Mass: 24001.637 Da / Num. of mol.: 5 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0F7J820 |
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-Flagellar biosynthetic protein ... , 3 types, 10 molecules A2B2C2D2E2F2G2H2I2J2
#2: Protein | Mass: 26801.086 Da / Num. of mol.: 5 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0D6FLD2 #3: Protein | | Mass: 28938.865 Da / Num. of mol.: 1 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0D6FLB3 #4: Protein | Mass: 9606.758 Da / Num. of mol.: 4 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0F7J7J8 |
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-Flagellar basal body ... , 2 types, 10 molecules Q2R2S2T2U2b2c2d2e2f2
#6: Protein | Mass: 15145.061 Da / Num. of mol.: 5 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0D6GKK7 #8: Protein | Mass: 26121.223 Da / Num. of mol.: 5 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0D6GIC9 |
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-Flagellar basal-body rod protein ... , 2 types, 30 molecules V2W2X2Y2Z2a2g2h2i2j2k2l2m2n2o2p2q2r2s2t2u2v2w2x2y2z212223242
#7: Protein | Mass: 13991.889 Da / Num. of mol.: 6 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0F7J5J2 #9: Protein | Mass: 27784.807 Da / Num. of mol.: 24 / Source method: isolated from a natural source Source: (natural) Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) References: UniProt: A0A0F7J893 |
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-Details
Has protein modification | Y |
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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: Salmonella flagellar basal body / Type: COMPLEX / Entity ID: all / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 59 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 60497 / Symmetry type: POINT |