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Yorodumi- PDB-1k4j: Crystal Structure of the Acyl-homoserinelactone Synthase EsaI Com... -
+Open data
-Basic information
Entry | Database: PDB / ID: 1k4j | ||||||
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Title | Crystal Structure of the Acyl-homoserinelactone Synthase EsaI Complexed with Rhenate | ||||||
Components | acyl-homoserinelactone synthase EsaI | ||||||
Keywords | LIGASE / acyl-homoserinelactone synthase / mixed alpha beta / enzyme / GNAT similarity / quorum sensing / autoinducer synthase | ||||||
Function / homology | Function and homology information acyl-homoserine-lactone synthase / N-acyl homoserine lactone synthase activity / quorum sensing Similarity search - Function | ||||||
Biological species | Pantoea stewartii subsp. stewartii (bacteria) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.5 Å | ||||||
Authors | Watson, W.T. / Minogue, T.D. / Val, D.L. / Beck von Bodman, S. / Churchill, M.E.A. | ||||||
Citation | Journal: Mol.Cell / Year: 2002 Title: Structural basis and specificity of acyl-homoserine lactone signal production in bacterial quorum sensing. Authors: Watson, W.T. / Minogue, T.D. / Val, D.L. / von Bodman, S.B. / Churchill, M.E. #1: Journal: Acta Crystallogr.,Sect.D / Year: 2001 Title: Crystallization and Rhenium MAD Phasing of the Acyl-homoserinelactone Synthase EsaI Authors: Watson, W.T. / Murphy, F.V. / Gould, T.A. / Jambeck, P. / Val, D.L. / Cronan, J.E. / Beck von Bodman, S. / Churchill, M.E.A. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1k4j.cif.gz | 52.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1k4j.ent.gz | 37.5 KB | Display | PDB format |
PDBx/mmJSON format | 1k4j.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/k4/1k4j ftp://data.pdbj.org/pub/pdb/validation_reports/k4/1k4j | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
#1: Protein | Mass: 26040.727 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Pantoea stewartii subsp. stewartii (bacteria) Species: Pantoea stewartii / Strain: subsp. stewartii / Gene: esaI/esaR cluster / Plasmid: pET14b / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P54656 | ||
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#2: Chemical | ChemComp-REO / #3: Water | ChemComp-HOH / | |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2 Å3/Da / Density % sol: 38.55 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 6.1 Details: PEG 4000, 2-propanol, MES, EDTA, beta-mercaptoethanol, NaN3, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 291K | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Method: vapor diffusion | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 113 K | |||||||||||||||
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Diffraction source | Source: SYNCHROTRON / Site: NSLS / Beamline: X12C / Wavelength: 1.14, 1.1724, 1.1719, 1.19 | |||||||||||||||
Detector | Type: BRANDEIS - B4 / Detector: CCD / Date: Nov 13, 1999 / Details: monochromator | |||||||||||||||
Radiation | Monochromator: parallel silicon crystal pair / Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||
Radiation wavelength |
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Reflection | Resolution: 2.5→30 Å / Num. all: 7168 / Num. obs: 7101 / % possible obs: 97 % / Observed criterion σ(F): 4 / Observed criterion σ(I): 7.3 / Redundancy: 4.5 % / Biso Wilson estimate: 54.4 Å2 / Rsym value: 0.042 / Net I/σ(I): 20.9 | |||||||||||||||
Reflection shell | Resolution: 2.5→2.6 Å / Redundancy: 2.4 % / Mean I/σ(I) obs: 3.2 / Num. unique all: 1373 / Rsym value: 0.175 / % possible all: 98.1 | |||||||||||||||
Reflection | *PLUS Lowest resolution: 30 Å / Num. obs: 7283 / Num. measured all: 32922 / Rmerge(I) obs: 0.042 | |||||||||||||||
Reflection shell | *PLUS % possible obs: 98.1 % / Rmerge(I) obs: 0.175 / Mean I/σ(I) obs: 4.7 |
-Processing
Software |
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Refinement | Method to determine structure: MAD Starting model: none Resolution: 2.5→30 Å / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2 / σ(I): 0 / Stereochemistry target values: Engh & Huber
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Displacement parameters | Biso mean: 50.9 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.5→30 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.5→2.59 Å / Rfactor Rfree error: 0.038
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Refinement | *PLUS % reflection Rfree: 11 % / Rfactor all: 0.222 / Rfactor obs: 0.216 / Rfactor Rfree: 0.275 / Rfactor Rwork: 0.216 | |||||||||||||||||||||||||
Solvent computation | *PLUS | |||||||||||||||||||||||||
Displacement parameters | *PLUS | |||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Highest resolution: 2.5 Å / Rfactor Rfree: 0.291 / Rfactor Rwork: 0.253 |