4AGA
Hofmeister effects of ionic liquids in protein crystallization: direct and water-mediated interactions
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4.5 | CHICKEN EGG WHITE LYSOZYME (FLUKA) HAS BEEN DISSOLVED IN 50 MM SODIUM ACETATE BUFFER PH 4.57 AND CRYSTALLIZED BY SITTING DROP DIFFUSION METHOD. EACH DROP CONTAINED 20 MG/ML OF LYSOZYME AND 5.5 PERCENT OF NACL IN 25 MM OF NA[AC] PH 4.57 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.98 | 38.1 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 78.35 | α = 90 |
b = 78.35 | β = 90 |
c = 36.9 | γ = 90 |
Symmetry | |
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Space Group | P 43 21 2 |
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 | 63 | CCD | ADSC QUANTUM 315r | 2011-11-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | SOLEIL | PROXIMA 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 | 1.5 | 39.17 | 99.6 | 0.06 | 19.33 | 6.35 | 20915 | -3 | 24.394 |
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 | 1.5 | 1.51 | 100 | 0.6 | 3.19 | 6.38 |
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 193L | 1.5 | 39.17 | 17978 | 947 | 100 | 0.16971 | 0.16755 | 0.21094 | RANDOM | 19.991 |
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] | |
0.15 | 0.15 | -0.3 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.722 |
r_dihedral_angle_4_deg | 20.255 |
r_dihedral_angle_3_deg | 15.827 |
r_dihedral_angle_1_deg | 6.21 |
r_scangle_it | 5.153 |
r_scbond_it | 3.347 |
r_angle_refined_deg | 2.161 |
r_mcangle_it | 2.131 |
r_mcbond_it | 1.325 |
r_chiral_restr | 0.157 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1001 |
Nucleic Acid Atoms | |
Solvent Atoms | 171 |
Heterogen Atoms | 13 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
XDS | data reduction |
XDS | data scaling |
REFMAC | phasing |