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CRYSTALLOGRAPHIC STRUCTURE OF AN RNA HELIX: [U(U-A)6A]2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 308 pH 6.50, VAPOR DIFFUSION, HANGING DROP, temperature 308.00K
Crystal Properties Matthews coefficient Solvent content 2.12 42.03
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 34.11 α = 90 b = 44.61 β = 90 c = 49.11 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 291 DIFFRACTOMETER ENRAF-NONIUS CAD4
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.25 25 4924 2492 2
Refinement Statistics Diffraction ID Structure Solution Method 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-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION 2.25 10 2 2437 0.131
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 n_phos_bond_it 5.02 n_phos_angle_it 4.55 n_sugar_angle_it 4.3 n_sugar_bond_it 3.49 n_multtor_nbd 0.168 n_singtor_nbd 0.139 n_chiral_restr 0.077 n_angle_d 0.035 n_plane_restr 0.017 n_bond_d 0.004
RMS Deviations Key Refinement Restraint Deviation n_phos_bond_it 5.02 n_phos_angle_it 4.55 n_sugar_angle_it 4.3 n_sugar_bond_it 3.49 n_multtor_nbd 0.168 n_singtor_nbd 0.139 n_chiral_restr 0.077 n_angle_d 0.035 n_plane_restr 0.017 n_bond_d 0.004 n_planar_d n_hb_or_metal_coord n_bond_angle_restr n_dihedral_angle_restr n_impr_tor n_sugar_bond_d n_sugar_bond_angle_d n_phos_bond_d n_phos_bond_angle_d n_xhyhbond_nbd
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 582 Solvent Atoms 91 Heterogen Atoms
Software Software Software Name Purpose NUCLSQ refinement