CRYSTAL STRUCTURE OF NICOTINATE MONONUCLEOTIDE : 5,6-DIMETHYLBENZIMIDAZOLE PHOSPHORIBOSYLTRANSFERASE (COBT) FROM SALMONELLA TYPHIMURIUM COMPLEXED WITH 5, 6-DIMETHYLBENZIMIDAZOLE
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6 | 277 | 1.3 M NH4H2PO4/(NH4)2HPO4, 1 MM 5,6-DIMETHYLBENZIMIDAZOLE, 4 % POLYETHYLENEGLYCOL 400, pH 6.0, VAPOR DIFFUSION, HANGING DROP |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.11 | 41.6 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 72.1 | α = 90 |
| b = 90.2 | β = 90 |
| c = 47.5 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 274 | AREA DETECTOR | ENRAF-NONIUS | 1998-08-03 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU RU200 | |||
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 | 1.9 | 30 | 90.8 | 0.065 | 13.6 | 3.9 | 27320 | 24807 | 19.9 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1 | 1.88 | 1.98 | 64.7 | 1.7 | |||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | Mean Isotropic B | |||||||||
| X-RAY DIFFRACTION | 1.9 | 30 | 19486 | 0.172 | 0.17 | ||||||||||||||
| 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 |
| t_angle_deg | 1.86 |
| t_bond_d | 0.009 |
| t_dihedral_angle_d | |
| t_incorr_chiral_ct | |
| t_pseud_angle | |
| t_trig_c_planes | |
| t_gen_planes | |
| t_it | |
| t_nbd | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2418 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 132 |
| Heterogen Atoms | 16 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| FRAMBO | data collection |
| XDS | data reduction |
| SOLVE | phasing |
| TNT | refinement |
| XDS | data scaling |














