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Crystal structure of Pif1 helicase from Bacteroides in complex with AMPPNP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 0.1M BIS-TRIS PROPANE PH 6.5 0.1M CALCIUM ACETATE 10% PEG 4000
Crystal Properties Matthews coefficient Solvent content 2.68 54.92
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.238 α = 90 b = 74.93 β = 90 c = 107.729 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 77 CCD ADSC QUANTUM 315r 2015-05-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRF BEAMLINE BL17U SSRF BL17U
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 1.38 33.62 99 0.06 18.6 7.3 110840 2 15.34
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 1.38 1.43 1 0.97 2.39 7.4
Refinement Statistics Diffraction ID Structure Solution 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 SAD NONE 1.38 42.038 1.35 110824 5444 98.77 0.1676 0.1668 0.1703 0.1828 0.1854
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 12.682 f_angle_d 1.046 f_chiral_restr 0.061 f_bond_d 0.006 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3464 Nucleic Acid Atoms Solvent Atoms 718 Heterogen Atoms 41
Software Software Software Name Purpose PHENIX refinement XDS data reduction XDS data scaling PHENIX phasing