6CRO
CRYSTAL STRUCTURE OF LAMBDA-CRO BOUND TO A CONSENSUS OPERATOR AT 3.0 ANGSTROM RESOLUTION
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.9 | 293 | CRO PROTEIN WAS SUSPENDED IN 20MM SODIUM CACODYLATE PH6.9 THEN MIXED WITH A 30% EXCESS OF THE 19BP DNA FRAGMENT. THE COMPLEX WAS THEN MIXED WITH AN EQUAL VOLUME OF PRECIPITANT SOLUTION (70MM AMMONIUM SULFATE, 13% PEG3350) AND ALLOWED TO EQUILIBRATE VIA THE HANGING DROP METHOD AT ROOM TEMPERATURE. COCRYSTALS TYPICALLY TAKE 3-4 MONTHS TO APPEAR., vapor diffusion - hanging drop, temperature 293K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.3 | 47.33 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 102.97 | α = 90 |
b = 102.97 | β = 90 |
c = 102.97 | γ = 90 |
Symmetry | |
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Space Group | I 21 3 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 295 | AREA DETECTOR | SDMS | COLLIMATOR | 1993-02-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 3 | 20 | 99.9 | 0.072 | 17.7 | 3758 | 3758 | 40.8 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
3 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | MIR, WITH SUBSEQUENT MOLECULAR REPLACEMENT | TRUNCATED VERSION OF THE PREVIOUS LOW-RESOLUTION COMPLEX STRUCTURE | 3 | 20 | 3758 | 3758 | 99.9 | 0.194 |
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 | |
---|---|
Key | Refinement Restraint Deviation |
t_dihedral_angle_d | 23.244 |
t_angle_deg | 2.587 |
t_it | 1.811 |
t_nbd | 0.033 |
t_gen_planes | 0.016 |
t_bond_d | 0.014 |
t_trig_c_planes | 0.011 |
t_incorr_chiral_ct | |
t_pseud_angle |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 472 |
Nucleic Acid Atoms | 814 |
Solvent Atoms | 7 |
Heterogen Atoms | 5 |
Software
Software | |
---|---|
Software Name | Purpose |
VERIFY | model building |
EDPDB | model building |
TNT | refinement |
SDMS | data reduction |
SDMS | data scaling |
VERIFY | phasing |
EDPDB | phasing |