+Open data
-Basic information
Entry | Database: PDB / ID: 1k3e | ||||||
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Title | Type III secretion chaperone CesT | ||||||
Components | CesT | ||||||
Keywords | CHAPERONE / Secretion / Type III / intimin receptor | ||||||
Function / homology | Function and homology information | ||||||
Biological species | Escherichia coli O157:H7 (bacteria) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.8 Å | ||||||
Authors | Luo, Y. / Bertero, M. / Frey, E.A. / Pfuetzner, R.A. / Wenk, M.R. / Creagh, L. / Marcus, S.L. / Lim, D. / Finlay, B.B. / Strynadka, N.C.J. | ||||||
Citation | Journal: Nat.Struct.Biol. / Year: 2001 Title: Structural and biochemical characterization of the type III secretion chaperones CesT and SigE. Authors: Luo, Y. / Bertero, M.G. / Frey, E.A. / Pfuetzner, R.A. / Wenk, M.R. / Creagh, L. / Marcus, S.L. / Lim, D. / Sicheri, F. / Kay, C. / Haynes, C. / Finlay, B.B. / Strynadka, N.C. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1k3e.cif.gz | 65.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1k3e.ent.gz | 50.4 KB | Display | PDB format |
PDBx/mmJSON format | 1k3e.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/k3/1k3e ftp://data.pdbj.org/pub/pdb/validation_reports/k3/1k3e | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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1 |
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2 |
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Unit cell |
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-Components
#1: Protein | Mass: 17694.877 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: This sequence occurs naturally in Escherichia coli O157:H7. Source: (gene. exp.) Escherichia coli O157:H7 (bacteria) / Gene: cesT / Plasmid: pET28A / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: Q47015, UniProt: P58233*PLUS |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.96 Å3/Da / Density % sol: 58.1 % | |||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 291 K / Method: vapor diffusion / pH: 5.6 Details: 10% PEG 600, 1.5 M ammonium sulfate, 0.1 M Sodium Citrate, pH 5.6, VAPOR DIFFUSION, temperature 291.0K | |||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS pH: 8.2 / Method: unknown | |||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: SYNCHROTRON / Site: SSRL / Beamline: BL9-2 / Wavelength: 0.97 Å |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: May 10, 2001 |
Radiation | Monochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97 Å / Relative weight: 1 |
Reflection | Resolution: 2.8→30 Å / Num. all: 10823 / Num. obs: 10290 / % possible obs: 94 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 4.2 % / Biso Wilson estimate: 68 Å2 / Rmerge(I) obs: 0.038 / Rsym value: 0.038 / Net I/σ(I): 25.6 |
Reflection shell | Resolution: 2.8→2.9 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.151 / Mean I/σ(I) obs: 6.2 / Num. unique all: 773 / Rsym value: 0.151 / % possible all: 72.2 |
Reflection | *PLUS Num. measured all: 43030 |
Reflection shell | *PLUS % possible obs: 72.2 % |
-Processing
Software |
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Refinement | Method to determine structure: MAD Starting model: NONE Resolution: 2.8→15 Å / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
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Displacement parameters | Biso mean: 65.25 Å2
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Refinement step | Cycle: LAST / Resolution: 2.8→15 Å
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Refine LS restraints |
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Software | *PLUS Name: CNS / Version: 1 / Classification: refinement | |||||||||||||||||||||||||
Refinement | *PLUS Highest resolution: 2.8 Å / Lowest resolution: 15 Å / σ(F): 0 / % reflection Rfree: 9.2 % / Rfactor obs: 0.225 | |||||||||||||||||||||||||
Solvent computation | *PLUS | |||||||||||||||||||||||||
Displacement parameters | *PLUS |