Native state mass spectrometry, surface plasmon resonance and X-ray crystallography correlate strongly as a fragment screening combination
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4CQ0 | PDB ENTRY 4CQ0 |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 15 MG/ML PROTEIN WITH 2.7 M AMMONIUM SULFATE, 100 MM TRIS PH 8.5 AT 8 C IN SITTING DROPS. | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.1 | 42.1 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 42.295 | α = 90 |
| b = 41.515 | β = 104.39 |
| c = 72.146 | 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 | ADSC CCD | 2015-04-08 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | Australian Synchrotron | MX1 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.67 | 41.5 | 97.9 | 0.05 | 24.6 | 7.4 | 27890 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
| 1 | 1.67 | 1.7 | 88.6 | 0.3 | 5.7 | 6.8 | |||||||||||||
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-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 4CQ0 | 1.67 | 69.88 | 26514 | 1363 | 97.64 | 0.15007 | 0.1475 | 0.16 | 0.20162 | 0.21 | RANDOM | 15.085 | ||||
| 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] | |
| 0.26 | -0.09 | -0.11 | -0.09 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.199 |
| r_dihedral_angle_4_deg | 21.892 |
| r_dihedral_angle_3_deg | 13.701 |
| r_dihedral_angle_1_deg | 6.673 |
| r_scbond_it | 2.948 |
| r_mcangle_it | 2.676 |
| r_angle_refined_deg | 1.983 |
| r_mcbond_it | 1.899 |
| r_mcbond_other | 1.898 |
| r_angle_other_deg | 1.043 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2059 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 263 |
| Heterogen Atoms | 23 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| Aimless | data scaling |
| PHASER | phasing |
