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X-ray Analysis of a RNA Tetraplex r(uggggu)4 at Ultra-High Resolution
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 20mM Sodium Cacodylate (pH 7.0), 12mM spermine tetrachloride, 20mM MgCl2, 80mM SrCl2, 40mM CaCl2, 35% MPD, VAPOR DIFFUSION, HANGING DROP
Crystal Properties Matthews coefficient Solvent content 1.55 20.87
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 36.154 α = 90 b = 36.154 β = 90 c = 74.134 γ = 90
Symmetry Space Group P 4 21 2
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 4 M MAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-D 0.8 APS 14-BM-D
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 0.61 20 92.9 0.066 26 207845
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) 0.61 0.62 61.5 0.339
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MAD 0.61 20 207845 10452 0.103 0.112 Thin Cell
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 516 Solvent Atoms 127 Heterogen Atoms 31
Software Software Software Name Purpose MLPHARE phasing SHELXL-97 refinement SCALEPACK data scaling