2XB5
Tet repressor (class D) in complex with 7-Iodotetracycline
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.2 | 10MICROL PROTEIN (0.2MM TETR, 1MM IODOTC, 5MM MGCL2), 5MICROL RESERVOIR (35% AMMONIUM SULPHATE, TRIS-HCL PH 7.2) VAPOUR DIFFUSSION HANGING DROP |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.31 | 42 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 68.86 | α = 90 |
b = 68.86 | β = 90 |
c = 180.94 | γ = 90 |
Symmetry | |
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Space Group | I 41 2 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 | 277 | IMAGE PLATE | MARRESEARCH | MIRRORS | 1993-04-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X31 | EMBL/DESY, HAMBURG | X31 |
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 | 2.45 | 64.55 | 99 | 0.06 | 4 | 7120 | 41.55 |
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 | OTHER | THROUGHOUT | NONE | 2.5 | 64.55 | 7120 | 777 | 99.65 | 0.16847 | 0.16163 | 0.23018 | RANDOM | 39.81 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.88 | 0.88 | -1.76 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 38.29 |
r_dihedral_angle_3_deg | 21.354 |
r_dihedral_angle_4_deg | 16.872 |
r_dihedral_angle_1_deg | 5.53 |
r_scangle_it | 3.704 |
r_scbond_it | 2.22 |
r_angle_refined_deg | 1.612 |
r_mcangle_it | 1.398 |
r_angle_other_deg | 1.037 |
r_mcbond_it | 0.72 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1640 |
Nucleic Acid Atoms | |
Solvent Atoms | 40 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
MOSFLM | data reduction |