Transport of drugs by the multidrug transporter AcrB involves an access and a deep binding pocket that are separated by a switch-loop
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 290 | 0.025M ADA, pH 6.5, 0.2M ammonium sulfate, 7.66% PEG 4000, 8.8% glycerol, 0.004M doxorubicin, VAPOR DIFFUSION, HANGING DROP, temperature 290K | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 3.84 | 68.01 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 145.943 | α = 90 | 
| b = 163.285 | β = 90 | 
| c = 245.766 | 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 | MARRESEARCH | 2007-04-20 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | SLS BEAMLINE X06SA | 1.0 | SLS | X06SA | 
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 | 2.25 | 49.153 | 99.5 | 0.095 | 14.94 | 274592 | 274585 | -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 | 2.25 | 2.39 | 97.3 | 0.984 | 1.75 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution 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 | MOLECULAR REPLACEMENT | 2.253 | 49.093 | 1.99 | 274555 | 13724 | 99.52 | 0.187 | 0.1849 | 0.18 | 0.2273 | 0.22 | |||||||
| 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] | |
| -5.6515 | 8.8845 | -3.233 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| f_dihedral_angle_d | 14.662 | 
| f_angle_d | 1.05 | 
| f_chiral_restr | 0.068 | 
| f_bond_d | 0.007 | 
| f_plane_restr | 0.004 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 25979 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 1700 | 
| Heterogen Atoms | 515 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| XSCALE | data scaling | 
| PHENIX | refinement | 
| PDB_EXTRACT | data extraction | 
| XDS | data scaling | 
| XDS | data reduction | 
| MOLREP | phasing | 














