1JYN
E. COLI (lacZ) BETA-GALACTOSIDASE (E537Q) IN COMPLEX WITH LACTOSE
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 288 | PEG 8000, NaCl, MgCl2, DTT, Bis-Tris, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 288K, pH 6.50 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.7 | 55 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 149.55 | α = 90 |
b = 168.63 | β = 90 |
c = 200.88 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | 95 | IMAGE PLATE | MARRESEARCH | 1999-01-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-1 | SSRL | BL9-1 |
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 | 1.8 | 17 | 92 | 0.066 | 12.5 | 2.6 | 433670 | 433670 | 11.2 |
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 | 1.8 | 81.9 | 0.19 | 4.1 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | THROUGHOUT | 1.8 | 17 | 433670 | 433670 | 6261 | 92 | 0.155 | 0.219 | 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] | |
-0.9 | 2 | -1.1 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_dihedral_angle_d | 17.339 |
t_pseud_angle | 14.965 |
t_it | 8.026 |
t_angle_deg | 2.938 |
t_nbd | 0.09 |
t_trig_c_planes | 0.019 |
t_gen_planes | 0.019 |
t_bond_d | 0.018 |
t_incorr_chiral_ct |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 32500 |
Nucleic Acid Atoms | |
Solvent Atoms | 4529 |
Heterogen Atoms | 505 |
Software
Software | |
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Software Name | Purpose |
TNT | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |
TNT | phasing |