3AOB

Structures of the multidrug exporter AcrB reveal a proximal multisite drug-binding pocket


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2DHH 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.429820mM sodium phosphate, 100mM NaCl, 14 %(w/v) PEG 4000, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
3.5165

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 223.897α = 90
b = 134.314β = 98.1
c = 161.766γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX MX225HE2010-02-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL44XU0.9000SPring-8BL44XU

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
13.355099.60.05917.67.667817
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
13.353.411000.3367.63368

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT2DHH3.3548.9163363335097.670.264160.260830.3256RANDOM93.891
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]
-0.070.070.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg41.039
r_dihedral_angle_3_deg21.214
r_dihedral_angle_4_deg20.645
r_dihedral_angle_1_deg6.797
r_scangle_it2.018
r_angle_refined_deg1.59
r_scbond_it1.117
r_mcangle_it1.089
r_mcbond_it0.584
r_chiral_restr0.098
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg41.039
r_dihedral_angle_3_deg21.214
r_dihedral_angle_4_deg20.645
r_dihedral_angle_1_deg6.797
r_scangle_it2.018
r_angle_refined_deg1.59
r_scbond_it1.117
r_mcangle_it1.089
r_mcbond_it0.584
r_chiral_restr0.098
r_bond_refined_d0.013
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms23322
Nucleic Acid Atoms
Solvent Atoms4
Heterogen Atoms59

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling