Use of a Halide Binding Site to Bypass the 1000-atom Limit to Ab initio Structure Determination
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 6.7 | 277 | sodium:potassium phosphate, pH 6.7, VAPOR DIFFUSION, HANGING DROP, temperature 277K, pH 6.70 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.68 | 53.72 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 60.199 | ¦Á = 90 |
b = 60.199 | ¦Â = 90 |
c = 95.242 | ¦Ã = 120 |
Symmetry | |
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Space Group | P 32 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 | 100 | IMAGE PLATE | MAR scanner 345 mm plate | 2000-12-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-1 | SSRL | BL9-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.06 | 22 | 96.3 | 0.052 | 7.4 | 11.1 | 87349 |
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) | |||||||||||
1.06 | 1.12 | 91.4 | 0.304 | 4 | 3.2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | SAD | RFREE | 1.06 | 22 | 87349 | 4321 | 96.3 | 0.123 | 0.123 | 0.13 | 0.147 | 0.15 | RANDOM |
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] | |
Coordinate Error | ||
---|---|---|
Structure Solution Method | Refinement High Resolution | Refinement Low Resolution |
13 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
s_from_restr_planes | 0.349 |
s_approx_iso_adps | 0.096 |
s_zero_chiral_vol | 0.087 |
s_non_zero_chiral_vol | 0.082 |
s_similar_adp_cmpnt | 0.049 |
s_angle_d | 0.031 |
s_anti_bump_dis_restr | 0.029 |
s_bond_d | 0.015 |
s_rigid_bond_adp_cmpnt | 0.005 |
s_similar_dist |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1412 |
Nucleic Acid Atoms | |
Solvent Atoms | 334 |
Heterogen Atoms | 20 |
Software
Software | |
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Software Name | Purpose |
MAR345 | data collection |
SCALA | data scaling |
SHELXD | phasing |
SHELXL-97 | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |
SHELXE | model building |