Crystal structure of Mycobacterium tuberculosis VapC20 (Rv2549c), Sarcin-Ricin loop cleaving toxin
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 291 | 0.1M Potassium thiocyanate, 30% w/v Polyethylene glycol monomethyl ether 2000 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.77 | 30.68 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 48.82 | α = 90 |
| b = 59.28 | β = 90 |
| c = 78.62 | 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 | 100 | CCD | MARMOSAIC 225 mm CCD | 2015-04-01 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | RRCAT INDUS-2 BEAMLINE PX-BL21 | 0.97885 | RRCAT INDUS-2 | PX-BL21 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 1.775 | 78.62 | 99.9 | 0.092 | 0.128 | 0.06 | 7.5 | 4.3 | 22721 | 22721 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 1.78 | 1.87 | 100 | 0.601 | 0.601 | 0.802 | 0.383 | 1.1 | 4.3 | ||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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) | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | SAD | FREE R-VALUE | 1.775 | 18.317 | 0.03 | 21466 | 1058 | 94.66 | 0.1765 | 0.1747 | 0.18 | 0.212 | 0.21 | 17.5618 | |||||
| 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 | 15.392 |
| f_angle_d | 0.683 |
| f_chiral_restr | 0.032 |
| f_bond_d | 0.003 |
| f_plane_restr | 0.003 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2038 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 272 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MOSFLM | data collection |
| SCALA | data scaling |
| SOLVE | phasing |
| RESOLVE | phasing |
| PHENIX | refinement |
| PDB_EXTRACT | data extraction |
| MOSFLM | data reduction |














