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Crystal structure of Catabolite repressor acivator from E. coli in complex with HEPES
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2IKS
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 293 HEPES, MgCl2, PEG 4000
Crystal Properties Matthews coefficient Solvent content 1.79 31.42
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 123.932 α = 90 b = 43.341 β = 90 c = 108.908 γ = 90
Symmetry Space Group P 21 2 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 PIXEL DECTRIS PILATUS 300K 2017-09-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID23-2 0.873 ESRF ID23-2
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 2.7 40.91 97.78 0.074 0.998 10.6 0.08726 16445
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.7 2.797 0.9
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-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 THROUGHOUT 2IKS 2.7 40.91 15622 824 97.86 0.2206 0.2172 0.2175 0.2838 0.2841 RANDOM 74.035
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] -0.63 2.17 -1.53
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 32.451 r_dihedral_angle_3_deg 21.134 r_dihedral_angle_4_deg 20.669 r_dihedral_angle_1_deg 6.672 r_angle_refined_deg 2.015 r_chiral_restr 0.131 r_bond_refined_d 0.017 r_gen_planes_refined 0.01
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4436 Nucleic Acid Atoms Solvent Atoms 63 Heterogen Atoms 51
Software Software Software Name Purpose REFMAC refinement PDB_EXTRACT data extraction SCALEPACK data scaling MOLREP phasing XDS data reduction