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Crystal Structure of Drosophila DHX36 helicase in complex with ssDNA CpG_A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5N8R
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 298 0.1M MES monohydrate-imidazole
20mM sodium formate
20mM ammonium acetate
20mM sodium citrate tribasic hydrate
20mM sodium oxamate
20mM potassium sodium tartrate tetrahydrate
Crystal Properties Matthews coefficient Solvent content 2.69 54.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 306.683 α = 90 b = 51.311 β = 115.55 c = 164.86 γ = 90
Symmetry Space Group C 1 2 1
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 315r 2016-07-17 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRF BEAMLINE BL17U 0.9791 SSRF BL17U
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) CC (Half) 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 2.969 67.1 95.36 0.135 0.983 6.7 3.4 46639 2 68.15
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.969 3.075 99.23 0.5152 0.942 2.13 3.5
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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 5N8R 2.969 67.1 1.36 46636 2300 95.38 0.2169 0.2142 0.2208 0.2696 0.2781 5%
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 5.348 f_angle_d 0.681 f_chiral_restr 0.044 f_bond_d 0.004 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 13744 Nucleic Acid Atoms 387 Solvent Atoms Heterogen Atoms 2
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHASER phasing