3H4O
Crystal structure of a nitroreductase family protein (cd3355) from clostridium difficile 630 at 1.50 A resolution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 277 | 35.0000% Dioxane, 0.001 M flavin mononucleotide (FMN), NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.32 | 46.89 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 77.897 | α = 90 |
b = 63.487 | β = 131.11 |
c = 55.465 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
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 | MARMOSAIC 325 mm CCD | Flat mirror (vertical focusing) | 2009-02-22 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | 0.91837,0.97840,0.97883 | SSRL | BL11-1 |
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 | 1.5 | 29.348 | 96.6 | 0.052 | 9.97 | 3 | 32401 | -3 | 12.217 |
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) | |||||||||||
1.5 | 1.55 | 90.9 | 0.388 | 1.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | 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 | MAD | THROUGHOUT | 1.5 | 29.348 | 32400 | 1637 | 99.47 | 0.141 | 0.139 | 0.167 | RANDOM | 15.258 |
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] | |
-0.39 | -0.7 | 0.05 | -0.58 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.17 |
r_dihedral_angle_3_deg | 12.883 |
r_dihedral_angle_4_deg | 10.705 |
r_scangle_it | 6.186 |
r_dihedral_angle_1_deg | 5.764 |
r_scbond_it | 4.034 |
r_mcangle_it | 2.437 |
r_mcbond_it | 1.865 |
r_angle_refined_deg | 1.54 |
r_angle_other_deg | 0.959 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1381 |
Nucleic Acid Atoms | |
Solvent Atoms | 294 |
Heterogen Atoms | 47 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
PHENIX | refinement |
SOLVE | phasing |
MolProbity | model building |
XSCALE | data scaling |
PDB_EXTRACT | data extraction |
XDS | data reduction |