3MOS
The structure of human Transketolase
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1QGD | PDB ENTRY 1QGD |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.9 | 298 | Crystallization trials revealed a reservoir mixture of 13.5-15 % PEG 6000 (w/v), 4% PEG 400 (v/v) and 2% glycerol (v/v) in 50 mM glycyl-glycine (pH 7.9) optimal for reproducible crystallization of single crystals. To induce crystallization 3 l protein solution (8-12 mg/ml, 0.6 mM ThDP, 5 mM CaCl2 in 50 mM glycyl-glycine (pH 7.9)) were mixed with 3 l of the reservoir solution at room temperature. , VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.13 | 42.3 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 113.63 | ¦Á = 90 |
b = 85.33 | ¦Â = 125.69 |
c = 72.74 | ¦Ã = 90 |
Symmetry | |
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Space Group | C 1 2 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 | 93 | IMAGE PLATE | RIGAKU RAXIS IV++ | Varimax HR | 2008-05-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 1.75 | 20 | 98 | 0.05 | 0.063 | 14.78 | 2.5 | 57086 | 55932 | 2.8 | -3 | 27.5 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1.75 | 1.85 | 96.2 | 0.394 | 0.494 | 2.8 | 2.4 | 8724 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 1QGD | 1.75 | 20 | 55932 | 55928 | 2796 | 98.41 | 0.164 | 0.164 | 0.162 | 0.206 | RANDOM | 21.521 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-0.77 | 0.36 | 0.48 | 0.71 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.287 |
r_dihedral_angle_4_deg | 18.51 |
r_dihedral_angle_3_deg | 14.264 |
r_dihedral_angle_1_deg | 6.5 |
r_scangle_it | 4.686 |
r_scbond_it | 2.998 |
r_angle_refined_deg | 1.995 |
r_mcangle_it | 1.819 |
r_mcbond_it | 1.182 |
r_chiral_restr | 0.146 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4715 |
Nucleic Acid Atoms | |
Solvent Atoms | 488 |
Heterogen Atoms | 68 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
CrystalClear | data collection |
XDS | data reduction |