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Yorodumi- PDB-4g2s: Crystal structure of a Salmonella type III secretion system protein -
+Open data
-Basic information
Entry | Database: PDB / ID: 4g2s | ||||||
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Title | Crystal structure of a Salmonella type III secretion system protein | ||||||
Components | Protein prgH | ||||||
Keywords | CELL INVASION / FHA domain | ||||||
Function / homology | Type III secretion system, PrgH/EprH / Type III secretion system, PrgH/EprH-like / Type III secretion system protein PrgH-EprH (PrgH) / Tumour Suppressor Smad4 - #20 / Tumour Suppressor Smad4 / Sandwich / Mainly Beta / plasma membrane / Protein PrgH Function and homology information | ||||||
Biological species | Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 1.858 Å | ||||||
Authors | Worrall, L.J. / Vuckovic, M. / Strynadka, N.C.J. | ||||||
Citation | Journal: PLoS Pathog / Year: 2013 Title: A refined model of the prototypical Salmonella SPI-1 T3SS basal body reveals the molecular basis for its assembly. Authors: Julien R C Bergeron / Liam J Worrall / Nikolaos G Sgourakis / Frank DiMaio / Richard A Pfuetzner / Heather B Felise / Marija Vuckovic / Angel C Yu / Samuel I Miller / David Baker / Natalie C J Strynadka / Abstract: The T3SS injectisome is a syringe-shaped macromolecular assembly found in pathogenic Gram-negative bacteria that allows for the direct delivery of virulence effectors into host cells. It is composed ...The T3SS injectisome is a syringe-shaped macromolecular assembly found in pathogenic Gram-negative bacteria that allows for the direct delivery of virulence effectors into host cells. It is composed of a "basal body", a lock-nut structure spanning both bacterial membranes, and a "needle" that protrudes away from the bacterial surface. A hollow channel spans throughout the apparatus, permitting the translocation of effector proteins from the bacterial cytosol to the host plasma membrane. The basal body is composed largely of three membrane-embedded proteins that form oligomerized concentric rings. Here, we report the crystal structures of three domains of the prototypical Salmonella SPI-1 basal body, and use a new approach incorporating symmetric flexible backbone docking and EM data to produce a model for their oligomeric assembly. The obtained models, validated by biochemical and in vivo assays, reveal the molecular details of the interactions driving basal body assembly, and notably demonstrate a conserved oligomerization mechanism. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 4g2s.cif.gz | 262.4 KB | Display | PDBx/mmCIF format |
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PDB format | pdb4g2s.ent.gz | 216.4 KB | Display | PDB format |
PDBx/mmJSON format | 4g2s.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/g2/4g2s ftp://data.pdbj.org/pub/pdb/validation_reports/g2/4g2s | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Component-ID: 1 / Refine code: 1
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