ACCELERATED X-RAY STRUCTURE ELUCIDATION OF A 36 KDA MURAMIDASE/TRANSGLYCOSYLASE USING WARP
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | ROD-SHAPED CRYSTALS WERE GROWN AT 295 K IN 1 DAY TO 1 WEEK BY EQUILIBRATING A HANGING DROP, THAT CONSISTED OF 3 UL OF PROTEIN SOLUTION AND 3 UL OF RESERVOIR SOLUTION OF 100 MM BICINE-NAOH, PH 7.8-8.5 AND 0-6% PEG 20K., vapor diffusion - hanging drop | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.72 | 55 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 58.329 | α = 90 |
| b = 67.883 | β = 90 |
| c = 98.853 | γ = 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 | 120 | CCD | 1995-04-08 | M | ||||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | CHESS BEAMLINE A1 | CHESS | A1 | |
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 | 1.7 | 29.6 | 94.4 | 0.05 | 24.4 | 5 | 41653 | 18.4 | |||||||||||
| 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) | |||||||||||
| 1.7 | 1.73 | 91.8 | 0.261 | 3.5 | |||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 Selection Details | Mean Isotropic B | ||||||
| X-RAY DIFFRACTION | MIRAS | THROUGHOUT | 1.7 | 20 | 41498 | 4214 | 94.5 | 0.186 | 0.186 | 0.19 | 0.221 | RANDOM | 23.6 | ||||||
| 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 |
| x_dihedral_angle_d | 22.1 |
| x_scangle_it | 3.81 |
| x_scbond_it | 2.43 |
| x_mcangle_it | 2.18 |
| x_angle_deg | 1.4 |
| x_mcbond_it | 1.37 |
| x_improper_angle_d | 1.22 |
| x_bond_d | 0.009 |
| x_bond_d_na | |
| x_bond_d_prot | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2826 |
| Nucleic Acid Atoms | |
| Solvent Atoms | |
| Heterogen Atoms | 16 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| ARP/wARP | model building |
| PHASES | phasing |
| X-PLOR | model building |
| X-PLOR | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| X-PLOR | phasing |
