3P99
Sterol 14alpha-demethylase (CYP51) from Trypanosoma brucei in complex with delta7-14alpha-methylene-cyclopropyl-dihydrolanosterol
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 3G1Q | PDB ENTRY 3G1Q |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 7.2 | 297 | PEG 3350, POTASSIUM PHOSPHATE; n-TETRADECYL-BETA-D-MALTOSIDE, SODIUM CHLORIDE, delta7-14alpha-methylene-cyclopropyl-dihydrolanosterol, pH 7.2, VAPOR DIFFUSION, temperature 297K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.44 | 49.68 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 59.61 | α = 107.93 |
b = 80.57 | β = 102.43 |
c = 115.8 | γ = 99.57 |
Symmetry | |
---|---|
Space Group | P 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 | BE LENSES/DIAMOND LAUE MONO | 2010-03-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | APS | 21-ID-F |
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 | 3 | 29.39 | 97.6 | 0.097 | 0.068 | 14.2 | 3.8 | 37941 | 2.6 | 75 |
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) | ||||||||||
1 | 3 | 3.05 | 97.7 | 0.62 | 0.55 | 2.6 | 3.94 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | PDB ENTRY 3G1Q | 3 | 29.39 | 36857 | 36047 | 1894 | 97.78 | 0.2256 | 0.22313 | 0.27144 | RANDOM | 84.529 |
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] | |
-0.12 | 0.35 | 0.57 | 1.4 | 1.91 | 0.26 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 30.061 |
r_dihedral_angle_3_deg | 14.252 |
r_dihedral_angle_4_deg | 14.194 |
r_dihedral_angle_1_deg | 4.031 |
r_scangle_it | 4.012 |
r_scbond_it | 2.489 |
r_mcangle_it | 1.413 |
r_angle_refined_deg | 0.894 |
r_mcbond_it | 0.754 |
r_chiral_restr | 0.049 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 14197 |
Nucleic Acid Atoms | |
Solvent Atoms | 50 |
Heterogen Atoms | 308 |
Software
Software | |
---|---|
Software Name | Purpose |
HKL-2000 | data collection |
MOLREP | phasing |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |