4ES1
Double-stranded Endonuclease Activity in B. halodurans Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-associated Cas2 Protein
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 294 | 50 mM MES, pH 6.0, 2% w/v PEG2000 MME, 10 mM magnesium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 294K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.9 | 35.41 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 65.887 | α = 90 |
b = 33.44 | β = 90 |
c = 39.093 | γ = 90 |
Symmetry | |
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Space Group | P 21 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 | 100 | CCD | ADSC QUANTUM 210 | 2010-10-29 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CHESS BEAMLINE A1 | 0.9770 | CHESS | A1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.1 | 10 | 96.6 | 35849 | 34580 | 2 | 2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 1.1 | 1.12 | 86.7 |
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-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1.1 | 10 | 34593 | 32857 | 1723 | 96.64 | 0.15807 | 0.15774 | 0.16435 | RANDOM | 9.364 |
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] | |
-0.67 | 0.1 | 0.57 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 26.834 |
r_sphericity_free | 13.239 |
r_dihedral_angle_3_deg | 13.159 |
r_dihedral_angle_4_deg | 11.548 |
r_dihedral_angle_1_deg | 6.794 |
r_scangle_it | 6.381 |
r_sphericity_bonded | 5.768 |
r_scbond_it | 4.657 |
r_mcangle_it | 3.298 |
r_mcbond_it | 2.3 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 749 |
Nucleic Acid Atoms | |
Solvent Atoms | 115 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
MOLREP | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data collection |