Crystal Structure of the Closed Conformation of Bacillus DNA Polymerase I Fragment Bound to DNA and dCTP
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2BDP | PDB ENTRY 2BDP |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 5.8 | 290 | AMMONIUM SULFATE, MAGNESIUM SULFATE, MPD, MES, MANGANESE SULFATE, pH 5.80, VAPOR DIFFUSION, HANGING DROP, temperature 290.0K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.12 | 60.63 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 91.681 | α = 90 |
| b = 91.681 | β = 90 |
| c = 190.116 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 31 |
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 QUANTUM 315 | MIRROR | 2001-03-29 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | NSLS BEAMLINE X25 | 1.1 | NSLS | X25 |
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 | 1.95 | 39.7 | 99.8 | 0.062 | 18.6 | 4.9 | 129531 | 129531 | -3 | 23.2 | |||||||||
| 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) | |||||||||||
| 1.95 | 2.02 | 99.3 | 0.48 | 2.5 | 4.1 | 12800 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | 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 (DCC) | R-Free Selection Details | Mean Isotropic B | |
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2BDP | 1.95 | 39.7 | 2 | 98839 | 96536 | 4574 | 74.2 | 0.264 | 0.218 | 0.218 | 0.21 | 0.261 | 0.25 | RANDOM | 43.9 | |
| 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] | |
| 0.3 | 0.74 | 0.3 | -0.6 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| c_dihedral_angle_d | 23.2 |
| c_improper_angle_d | 1.42 |
| c_angle_deg | 1.3 |
| c_scangle_it | 1.26 |
| c_mcangle_it | 1.12 |
| c_scbond_it | 0.83 |
| c_mcbond_it | 0.66 |
| c_bond_d | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 9294 |
| Nucleic Acid Atoms | 974 |
| Solvent Atoms | 186 |
| Heterogen Atoms | 69 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| CNS | refinement |
| CNS | phasing |














