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Crystal structure of the parallel double-stranded helix of poly(A) RNA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 294 RNA WATER SOLUTION PLUS BUFFER (10 MM HEPES, 50 MM NACL, 0.5 MM TCEP, PH 7.0) MIXED 1:1 V/V WITH 2 M (NH4)2SO4 + 0.2 M NH4NO3 AND EQUILIBRATED AGAINST 2 M (NH4)2SO4 + 0.2 M NH4NO3, VAPOR DIFFUSION, SITTING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 1.49 17.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 22.8 α = 90 b = 22.8 β = 90 c = 163.7 γ = 90
Symmetry Space Group P 41 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 MARMOSAIC 300 mm CCD FOCUSING MIRRORS 2010-05-29 M SINGLE WAVELENGTH 2 1 x-ray 100 CCD ADSC QUANTUM 210 FOCUSING MIRRORS 2010-10-21 M SINGLE WAVELENGTH 3 1 x-ray 100 CCD ADSC QUANTUM 210 FOCUSING MIRRORS 2010-10-21 M SINGLE WAVELENGTH 4 1 x-ray 100 CCD ADSC QUANTUM 210 FOCUSING MIRRORS 2010-10-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CLSI BEAMLINE 08ID-1 CLSI 08ID-1 2 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1 3 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1 4 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1
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 1,2,3,4 1 41 92.6 0.0944 34.35 2.73 23042 22972 4 -3
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) 1,2,3,4 1 1.1 73.1 0.1419 4.72 1.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) 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 AB INITIO PHASING FREE R 1 41 1 23042 22972 1152 92.6 0.126 0.118 0.1287 0.158 0.1548 RANDOM
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 242 571
RMS Deviations Key Refinement Restraint Deviation s_approx_iso_adps 0.1 s_from_restr_planes 0.038 s_angle_d 0.021 s_anti_bump_dis_restr 0.021 s_similar_adp_cmpnt 0.015 s_bond_d 0.007 s_rigid_bond_adp_cmpnt 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 478 Solvent Atoms 76 Heterogen Atoms 18
Software Software Software Name Purpose MxDC data collection SHELXD phasing SHELXL refinement HKL-2000 data reduction HKL-2000 data scaling