2ZYL
Crystal structure of 3-ketosteroid-9-alpha-hydroxylase (KshA) from M. tuberculosis
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | VAPOR DIFFUSION, SITTING DROP |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.56 | 65.46 |
Crystal Data
Unit Cell | |
---|---|
Length ( ? ) | Angle ( ? ) |
a = 116.2 | ¦Á = 90 |
b = 116.2 | ¦Â = 90 |
c = 81 | ¦Ã = 120 |
Symmetry | |
---|---|
Space Group | P 3 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 225 mm CCD | 2008-02-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CLSI BEAMLINE 08ID-1 | 1.000 | CLSI | 08ID-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 2.3 | 40 | 98.4 | 0.081 | 0.081 | 14.6 | 28328 | 1 | 2 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
2.3 | 2.36 | 89.4 | 0.435 | 0.435 | 3.1 |
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 (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | SAD | THROUGHOUT | 2.3 | 19.85 | 27053 | 26909 | 1417 | 100 | 0.19927 | 0.19737 | 0.23514 | RANDOM | 40.389 |
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] | |
-0.61 | -0.31 | -0.61 | 0.92 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.82 |
r_dihedral_angle_3_deg | 22.653 |
r_dihedral_angle_4_deg | 20.684 |
r_dihedral_angle_1_deg | 10.011 |
r_scangle_it | 5.372 |
r_scbond_it | 3.478 |
r_mcangle_it | 2.41 |
r_angle_refined_deg | 2.404 |
r_mcbond_it | 1.307 |
r_nbtor_refined | 0.32 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2916 |
Nucleic Acid Atoms | |
Solvent Atoms | 172 |
Heterogen Atoms | 6 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |
MxDC | data collection |
XDS | data reduction |
XDS | data scaling |
PHENIX | phasing |