1FZR
CRYSTAL STRUCTURE OF BACTERIOPHAGE T7 ENDONUCLEASE I
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.2 | 291 | PEG 4000, ammonium sulphate, sodium chloride, Tris.HCL, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K |
2 | Also used cross seeding using non-Semet substituted protein | 291 | PEG 4000, ammonium sulphate, sodium chloride, Tris.HCL, Also used cross seeding using non-Semet substituted protein, temperature 291K |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 123.66 | α = 90 |
b = 135.19 | β = 90 |
c = 61.58 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | MARRESEARCH | 1998-07-12 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID14-3 | ESRF | ID14-3 |
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 | 29.88 | 99.9 | 0.06 | 8.7 | 3.8 | 229942 | 61020 | 38.3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
2.1 | 2.21 | 99.6 | 0.488 | 3.8 | 8761 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | THROUGHOUT | 2.1 | 28.81 | 60471 | 60471 | 6061 | 99.1 | 0.202 | 0.202 | 0.198 | 0.235 | RANDOM | 54.1 |
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] | |
7.64 | -2.28 | -5.36 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 23.7 |
c_scangle_it | 9.58 |
c_scbond_it | 7.58 |
c_mcangle_it | 5.6 |
c_mcbond_it | 4.72 |
c_angle_deg | 1.5 |
c_improper_angle_d | 1.08 |
c_bond_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4217 |
Nucleic Acid Atoms | |
Solvent Atoms | 485 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
SOLVE | phasing |
CNS | refinement |
MOSFLM | data reduction |
CCP4 | data scaling |