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32 base pair oligo(U) RNA
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model Other IDEAL A-FORM RNA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 295 50 mM sodium cacodylate, pH 6.5, 200 mM potassium chloride, 75 mM magnesium acetate, 900 mM lithium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 2.31 46.81
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 42.89 α = 90 b = 42.89 β = 90 c = 266.936 γ = 120
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 2009-05-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL7-1 0.97946 SSRL BL7-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 1.05 36.8 100 0.057 0.057 20.1 4 45101 45101 2 2 9.5
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 1.05
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 MOLECULAR REPLACEMENT IDEAL A-FORM RNA 1.05 36.79 0.23 44972 921 99.26 0.1312 0.1307 0.1355 0.1537 0.1598
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] 1.0007 1.0007 -2.0013
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 5.895 f_angle_d 0.898 f_chiral_restr 0.034 f_plane_restr 0.012 f_bond_d 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 675 Solvent Atoms 247 Heterogen Atoms 5
Software Software Software Name Purpose Blu-Ice data collection MOLREP phasing PHENIX refinement MOSFLM data reduction