Crystal structure of vitamin D hydroxylase cytochrome P450 105A1 (R84A mutant) in complex with 1,25-dihydroxyvitamin D3
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 2ZBY | PDB ENTRY 2ZBY |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.6 | 283 | 26% PEG MME 2000, 0.1M BIS-TRIS, 0.2M sodium chloride, pH 6.6, VAPOR DIFFUSION, SITTING DROP, temperature 283K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.2 | 44.09 |
Crystal Data
Unit Cell | |
---|---|
Length ( ? ) | Angle ( ? ) |
a = 53.152 | ¦Á = 90 |
b = 53.671 | ¦Â = 90 |
c = 138.881 | ¦Ã = 90 |
Symmetry | |
---|---|
Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 90 | CCD | ADSC QUANTUM 210 | mirrors | 2007-04-11 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL44B2 | 1.00 | SPring-8 | BL44B2 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.9 | 20 | 100 | 0.056 | 26.6 | 7.2 | 32117 | -3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1.9 | 1.97 | 99.9 | 0.316 | 6.8 | 6.9 |
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2ZBY | 1.9 | 19.74 | 30443 | 30443 | 1614 | 99.77 | 0.20017 | 0.19802 | 0.2 | 0.24196 | 0.24 | RANDOM | 20.704 |
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] | |
1.2 | -0.57 | -0.63 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.832 |
r_dihedral_angle_4_deg | 16.785 |
r_dihedral_angle_3_deg | 11.982 |
r_dihedral_angle_1_deg | 4.837 |
r_scangle_it | 1.575 |
r_angle_refined_deg | 1.099 |
r_scbond_it | 0.978 |
r_mcangle_it | 0.767 |
r_mcbond_it | 0.44 |
r_nbtor_refined | 0.295 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 3090 |
Nucleic Acid Atoms | |
Solvent Atoms | 319 |
Heterogen Atoms | 73 |
Software
Software | |
---|---|
Software Name | Purpose |
REFMAC | refinement |
BSS | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
REFMAC | phasing |