1XEJ
THE CRYSTAL STRUCTURES OF LYSOZYME AT VERY LOW LEVELS OF HYDRATION
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 4.6 | pH 4.6 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.52 | 19.2 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 26.345 | α = 90 |
b = 55.885 | β = 109.98 |
c = 31.55 | γ = 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 | 293 | AREA DETECTOR | SIEMENS | 1992-10-04 |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 |
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 | 10 | 90.49 | 0.0629 | 14.08 | 2.76 | 4847 | 2 |
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 | 2.061 | 2.144 | 48.5 | 0.307 | 2.55 | 1.65 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | A POSTERIORI | THE 38% RELATIVE HUMIDITY FORM I STRUCTURE | 2.1 | 10 | 4 | 4237 | 79.1 | 0.194 | 0.283 | RANDOM | 30.4 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_staggered_tor | 24.2 |
p_transverse_tor | 21 |
p_scangle_it | 5.8 |
p_scbond_it | 4.9 |
p_mcangle_it | 3.9 |
p_mcbond_it | 2.7 |
p_planar_tor | 2.1 |
p_multtor_nbd | 0.365 |
p_xyhbond_nbd | 0.335 |
p_singtor_nbd | 0.229 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1001 |
Nucleic Acid Atoms | |
Solvent Atoms | 78 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
XENGEN | data collection |
XENGEN | data reduction |
X-PLOR | model building |
PROLSQ | refinement |
X-PLOR | refinement |
XENGEN | data scaling |
X-PLOR | phasing |