Crystal structure of Bacillus stearothermophilus CCA-adding enzyme in complex with CTP
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | MICRODIALYSIS | 7.5 | 277 | NaCl, Tris, MgCl2, pH 7.5, MICRODIALYSIS at 277K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.23 | 61.95 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 105.552 | α = 90 |
| b = 105.552 | β = 90 |
| c = 182.745 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 2 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 | MARRESEARCH | 2001-03-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 14-ID-B | 0.9789 | APS | 14-ID-B |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 3.5 | 20 | 0.048 | 0.048 | 32.6 | 10.14 | 15352 | -2 | |||||||||||
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 (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 3.52 | 81.65 | 13534 | 1518 | 99.53 | 0.29104 | 0.29104 | 0.28644 | 0.28 | 0.33125 | RANDOM | 37.579 | |||||
| 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] | |
| -2.72 | -1.36 | -2.72 | 4.08 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_1_deg | 5.57 |
| r_angle_refined_deg | 1.46 |
| r_symmetry_vdw_refined | 0.288 |
| r_nbd_refined | 0.28 |
| r_xyhbond_nbd_refined | 0.195 |
| r_symmetry_hbond_refined | 0.135 |
| r_chiral_restr | 0.089 |
| r_bond_refined_d | 0.014 |
| r_gen_planes_refined | 0.004 |
| r_bond_other_d | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6224 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 34 |
| Heterogen Atoms | 62 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| MLPHARE | phasing |
| REFMAC | refinement |














