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Yorodumi- PDB-2i7c: The crystal structure of spermidine synthase from p. falciparum i... -
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-Basic information
Entry | Database: PDB / ID: 2i7c | ||||||
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Title | The crystal structure of spermidine synthase from p. falciparum in complex with AdoDATO | ||||||
Components | Spermidine synthase | ||||||
Keywords | TRANSFERASE / spermidine synthase / structural genomics consortium / SGC | ||||||
Function / homology | Function and homology information Metabolism of polyamines / spermidine synthase / spermidine synthase activity / spermidine biosynthetic process / cytosol Similarity search - Function | ||||||
Biological species | Plasmodium falciparum (malaria parasite P. falciparum) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.71 Å | ||||||
Authors | Qiu, W. / Dong, A. / Ren, H. / Wu, H. / Wasney, G. / Vedadi, M. / Lew, J. / Kozieradski, I. / Edwards, A.M. / Arrowsmith, C.H. ...Qiu, W. / Dong, A. / Ren, H. / Wu, H. / Wasney, G. / Vedadi, M. / Lew, J. / Kozieradski, I. / Edwards, A.M. / Arrowsmith, C.H. / Weigelt, J. / Sundstrom, M. / Plotnikov, A.N. / Bochkarev, A. / Hui, R. / Structural Genomics Consortium (SGC) | ||||||
Citation | Journal: J.Mol.Biol. / Year: 2007 Title: Crystal structure of Plasmodium falciparum spermidine synthase in complex with the substrate decarboxylated S-adenosylmethionine and the potent inhibitors 4MCHA and AdoDATO. Authors: Dufe, V.T. / Qiu, W. / Muller, I.B. / Hui, R. / Walter, R.D. / Al-Karadaghi, S. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 2i7c.cif.gz | 195.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb2i7c.ent.gz | 155.9 KB | Display | PDB format |
PDBx/mmJSON format | 2i7c.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/i7/2i7c ftp://data.pdbj.org/pub/pdb/validation_reports/i7/2i7c | HTTPS FTP |
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-Related structure data
Related structure data | 2pssC 2pt6C 2pt9C 2hteS S: Starting model for refinement C: citing same article (ref.) |
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Similar 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 on special symmetry positions |
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Details | The biological assembly is a dimer. |
-Components
#1: Protein | Mass: 32221.150 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Plasmodium falciparum (malaria parasite P. falciparum) Strain: 3D7 / Plasmid: pET28a-LIC / Production host: Escherichia coli (E. coli) / Strain (production host): BL21-(DE3)-Rosetta Oxford / References: UniProt: Q8II73, spermidine synthase #2: Chemical | #3: Chemical | #4: Chemical | #5: Water | ChemComp-HOH / | |
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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: 3.33 Å3/Da / Density % sol: 63.08 % |
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Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 5.6 Details: 23% w/v PEG3350, 0.1M Ammonium Sulphate, 0.1M Bis-Tris, 15% glycerol, 1 mM AdoDATO (S-adenosyl-1,8-diamino-3-thiooctane), pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 17-BM / Wavelength: 1 Å |
Detector | Type: MAR CCD 165 mm / Detector: CCD / Date: Aug 11, 2006 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 1.71→50 Å / Num. all: 137061 / Num. obs: 126855 / % possible obs: 93.8 % / Observed criterion σ(I): 5 / Redundancy: 3.7 % / Biso Wilson estimate: 24.6 Å2 / Rsym value: 0.045 / Net I/σ(I): 25.7 |
Reflection shell | Resolution: 1.71→1.74 Å / Redundancy: 2.6 % / Mean I/σ(I) obs: 2.74 / Num. unique all: 3482 / Rsym value: 0.331 / % possible all: 51 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: pdb entry 2HTE Resolution: 1.71→35.92 Å / Cor.coef. Fo:Fc: 0.966 / Cor.coef. Fo:Fc free: 0.958 / SU B: 3.257 / SU ML: 0.056 / TLS residual ADP flag: LIKELY RESIDUAL / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.089 / ESU R Free: 0.085 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 25.045 Å2
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Refinement step | Cycle: LAST / Resolution: 1.71→35.92 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.71→1.752 Å / Total num. of bins used: 20
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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