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X-ray crystal structure of AcrB in complex with a novel transmembrane helix.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1IWG PDB entry 1IWG
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 293 14-28% PEG1000 or PEG1500, 0.1M Tris, 0.1M LiSO4, 18mM n-Octyl-beta-D-Thioglucopyranoside
and 20% 1,2,3-heptanetriol as an additive, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 4.45 72.34
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 145.097 α = 90 b = 145.097 β = 90 c = 511.644 γ = 120
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 4 2004-10-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-2 0.933 ESRF ID14-2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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 3.5 72.55 88 0.105 0.105 5.9 3.9 23777 23532 104.2
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 3.5 3.72 89.9 0.553 0.553 1.3 3.8 3454
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (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 1IWG 3.5 50 23525 1181 88 0.279 0.286 0.317 0.3252 Random 65.6
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 c_dihedral_angle_d 22.7 c_angle_deg 1.9 c_improper_angle_d 1.3 c_bond_d 0.011
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 7980 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 48
Software Software Software Name Purpose CNS refinement ADSC data collection MOSFLM data reduction SCALA data scaling AMoRE phasing