6NVA
Crystal structure of Escherichia coli dihydrodipicolinate synthase and propionate covalently bound to K161.
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | 20% PEG 3350 8 mM spermidine 200 mM sodium tartrate 8 mM 2-bromopropionic acid pH 7.5 |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.79 | 55.9 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 86.14 | α = 109.72 |
b = 86.333 | β = 104.24 |
c = 107.002 | γ = 99.18 |
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 | PIXEL | DECTRIS PILATUS 200K | VeriMax HF mirrors | 2017-08-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | CC (Half) | 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 | 2.16 | 50 | 97.6 | 0.149 | 0.149 | 0.524 | 7.781 | 3.2 | 443797 | 142605 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.16 | 2.2 | 92 | 0.756 | 0.756 | 0.524 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 5T26 | 2.16 | 25.173 | 1.96 | 142552 | 3492 | 85.42 | 0.184 | 0.1832 | 0.2388 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 6.011 |
f_angle_d | 0.933 |
f_chiral_restr | 0.053 |
f_bond_d | 0.008 |
f_plane_restr | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 17685 |
Nucleic Acid Atoms | |
Solvent Atoms | 2449 |
Heterogen Atoms | 44 |
Software
Software | |
---|---|
Software Name | Purpose |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHASER | phasing |