Crystal structure of an ABC uptake transporter substrate binding protein from Streptococcus pneumoniae with Bound Histidine
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 2Q2C | PDB ENTRY 2Q2C |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 298 | PEG 8K 30% w/v Na Acetate 0.2M Bis-Tris 0.1M, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.71 | 54.66 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 87.125 | α = 90 |
| b = 87.125 | β = 90 |
| c = 70.949 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 61 |
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 300 mm CCD | Double Silicone 111 crystalBi-morph Mirrors | 2013-01-01 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 1.28756 | APS | 21-ID-D |
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 | 1.37 | 37.12 | 99.7 | 0.08 | 16.4 | 10.8 | 64061 | 64061 | -3 | ||||||||||
| 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 | 1.37 | 1.42 | 98 | 0.683 | 2.7 | 6.7 | 6156 | ||||||||||||
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 | Thoughout | PDB ENTRY 2Q2C | 1.37 | 33.31 | 1.34 | 64008 | 64008 | 3245 | 99.67 | 0.1377 | 0.1377 | 0.1369 | 0.14 | 0.1527 | 0.15 | Random | 18.85 | |
| 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 | 13.378 |
| f_angle_d | 1.23 |
| f_chiral_restr | 0.08 |
| f_bond_d | 0.009 |
| f_plane_restr | 0.005 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1940 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 304 |
| Heterogen Atoms | 19 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Aimless | data scaling |
| MOLREP | phasing |
| PHENIX | refinement |
| PDB_EXTRACT | data extraction |
| BLU-MAX | data collection |
| MOSFLM | data reduction |














