2VK8
Crystal structure of the Saccharomyces cerevisiae pyruvate decarboxylase variant E477Q in complex with its substrate
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2VK1 | PDB ENTRY 2VK1 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.35 | 273.15 | 15MM CITRATE, 1.67MM MES, 315MM PYRUVATE, 1MM NADH, 0.001MG/ML ALCOHOL DEHYDROGENASE, 1.67MM TDP, 1.67MM MAGNESIUM SULFATE, 1.67MM DTT, 11.25% PEG2000, 11.25% PEG 6000, 1.1MG SCPDC/ML, PH 6.35, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 273.15K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.37 | 48.1 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 78.98 | ¦Á = 90 |
b = 190.51 | ¦Â = 113.01 |
c = 84.14 | ¦Ã = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC CCD | 2007-07-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-2 | ESRF | ID14-2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 1.42 | 99 | 99.7 | 0.05 | 22.5 | 4.4 | 427276 | 1 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.42 | 1.44 | 99.8 | 0.63 | 1.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2VK1 | 1.42 | 95.35 | 425935 | 1068 | 99.6 | 0.181 | 0.181 | 0.186 | RANDOM | 18.93 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.17 | -0.19 | -0.06 | -0.26 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 37.998 |
r_dihedral_angle_4_deg | 16.612 |
r_dihedral_angle_3_deg | 12.571 |
r_dihedral_angle_1_deg | 5.39 |
r_scangle_it | 2.592 |
r_scbond_it | 1.67 |
r_angle_refined_deg | 1.25 |
r_mcangle_it | 1.027 |
r_mcbond_it | 0.557 |
r_chiral_restr | 0.53 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 17292 |
Nucleic Acid Atoms | |
Solvent Atoms | 1818 |
Heterogen Atoms | 132 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |
MOLREP | phasing |