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DISORDER AND TWIN REFINEMENT OF RNA HEPTAMER DOUBLE HELIX
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 293 0.5 MM RNA DUPLEX, 12 MM SPERMINE, 40 MM NA-CACODYLATE PH 6.0, 80 MM SRCL2,40 MM LICL, 10 % (V/V) MPD AGAINST 0.5 ML 35 % (V/V) MPD, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.54 50.5
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 26.375 α = 110.37 b = 28.995 β = 96.62 c = 28.995 γ = 96.62
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 IMAGE PLATE MARRESEARCH 1996-09-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE BM14 ESRF BM14
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 1.23 15 82.8 0.05 3.4 64180 64180
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) 1.23 1.24 32.1 0.308
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 THROUGHOUT 1.23 15 18337 18337 955 96.7 0.129 0.129 0.127 0.1242 0.1933 0.1469 THIN RESOLUTION SHELLS
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 s_approx_iso_adps 0.092 s_similar_adp_cmpnt 0.041 s_from_restr_planes 0.032 s_bond_d 0.029 s_similar_dist 0.019 s_angle_d 0.018 s_non_zero_chiral_vol 0.012 s_rigid_bond_adp_cmpnt 0.012 s_anti_bump_dis_restr 0.006 s_zero_chiral_vol
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 586 Solvent Atoms 155 Heterogen Atoms 4
Software Software Software Name Purpose SHELXL-97 refinement DENZO data reduction SCALEPACK data scaling