3LS0
Crystal Structure of Cyanobacterial PsbQ from Synechocystis sp. PCC 6803
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 291 | 25% PEG 1450, 0.1M MES-NAOH, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
2 | VAPOR DIFFUSION, HANGING DROP | 7 | 291 | 25% PEG 1450, 0.05M MES, 0.05M TRIS-HCL, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 28.332 | α = 90 |
b = 46.787 | β = 90 |
c = 93.51 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC Omega 180 | 2009-08-28 | M | SINGLE WAVELENGTH | ||||||
2 | 1 | x-ray | 100 | CCD | ADSC Omega 180 | 2009-08-28 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX2 | 0.95364 | Australian Synchrotron | MX2 |
2 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX2 | 0.96064,0.97984 | Australian Synchrotron | MX2 |
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 | ||||||||
1,2 | 1.8 | 19.13 | 99.9 | 0.061 | 24.8 | 9.8 | 12135 | 12135 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
1.8 | 1.9 | 100 | 0.395 | 5.8 | 9.7 | 1730 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | 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 | MAD | THROUGHOUT | 1.8 | 18.71 | 12092 | 578 | 99.89 | 0.169 | 0.167 | 0.208 | RANDOM | 21.23 |
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] | |
1.33 | -0.5 | -0.83 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.101 |
r_dihedral_angle_4_deg | 19.239 |
r_dihedral_angle_3_deg | 14.36 |
r_scangle_it | 6.03 |
r_dihedral_angle_1_deg | 4.268 |
r_scbond_it | 3.911 |
r_angle_refined_deg | 2.193 |
r_mcangle_it | 1.931 |
r_mcbond_it | 1.203 |
r_chiral_restr | 0.155 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 905 |
Nucleic Acid Atoms | |
Solvent Atoms | 109 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
SHELX | phasing |