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Crystal Structure of an Hfq-RNA Complex
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1KQ1 one hexamer of 1KQ1
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 PEG 550, MgCl2, Hepes, KCl, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.17 43.28
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 80.87 α = 90 b = 115.6 β = 90 c = 101.84 γ = 90
Symmetry Space Group C 2 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 298 IMAGE PLATE MARRESEARCH 2001-06-11 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL9-1 SSRL BL9-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.71 40.38 90.3 0.064 11950 11950 83.4
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.71 2.89 92.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 one hexamer of 1KQ1 2.71 40.38 12030 12030 600 90.4 0.204 0.204 0.204 0.2069 0.266 0.2667 RANDOM 64.5
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] -1 -12.8 13.8
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24.9 c_scangle_it 5.48 c_mcangle_it 4.6 c_scbond_it 3.61 c_mcbond_it 2.69 c_angle_deg 1.2 c_improper_angle_d 0.74 c_bond_d 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2985 Nucleic Acid Atoms 142 Solvent Atoms 29 Heterogen Atoms
Software Software Software Name Purpose MOLREP phasing CNS refinement MOSFLM data reduction CCP4 data scaling