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Selectivity mechanism of a bacterial homologue of the human drug peptide transporters PepT1 and PepT2
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4LEP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 4 297 0.1 M phosphate citrate, 36% PEG300, 0.12 M ZnCl2
Crystal Properties Matthews coefficient Solvent content 4.05 69.61
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 82.89 α = 90 b = 108.09 β = 90 c = 206.83 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 80 CCD ADSC QUANTUM 1 2013-04-20 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I02 0.9 Diamond I02
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 3.91 4.01 90.6 7.14 4.8 31871
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 3.91 4.01 39.3 2.18 4.6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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 NONE 4LEP 3.91 4.01 1.37 16668 843 95.46 0.2622 0.2607 0.2655 0.2903 0.2932
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 14.13 f_angle_d 0.851 f_chiral_restr 0.029 f_plane_restr 0.004 f_bond_d 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6965 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 71
Software Software Software Name Purpose PHENIX refinement