7XCN
Crystal structure of the MttB-MttC complex at 2.7 A resolution
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 3EZX |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 283 | 0.5 ul MttB (3 mg/ml in 16mM potassium phosphate buffer pH7.4, 400mM NaCl, 160mM Imidazole, 20% glycerol, 1.6mM DTT) 0.5 ul MttC (10 mg/ml in 40 mM Tris buffer pH7, 200mM NaCl, 20% glycerol) 1 ul reservoir solution (18% PEG 8000, 0.1M citric acid pH 5, 1M LiC) |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.67 | 53.99 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 120.434 | α = 90 |
b = 188.138 | β = 119.25 |
c = 123.952 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 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 | RAYONIX MX-300 | 2019-06-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSRRC BEAMLINE TPS 05A | 0.99984 | NSRRC | TPS 05A |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.7 | 20 | 99.8 | 0.078 | 0.092 | 0.049 | 9.1 | 3.5 | 132103 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.7 | 2.75 | 100 | 0.574 | 0.682 | 0.364 | 0.73 | 3.4 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3EZX | 2.7 | 20 | 124909 | 10543 | 95 | 0.1915 | 0.2382 | 46.9495 |
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] | |
-0.684 | -1.205 | 0.463 | 0.222 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
c_scangle_it | 9.836 |
c_scbond_it | 7.77 |
c_mcangle_it | 6.653 |
c_mcbond_it | 4.745 |
c_angle_d | 1.253 |
c_bond_d | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 32140 |
Nucleic Acid Atoms | |
Solvent Atoms | 373 |
Heterogen Atoms | 564 |
Software
Software | |
---|---|
Software Name | Purpose |
CNS | refinement |
HKL-2000 | data scaling |
PDB_EXTRACT | data extraction |
HKL-2000 | data reduction |
PHASER | phasing |