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X-ray structure of the oligonucleotide sequence d(AAATTT)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 277 25mM cacodylate, 100mM calcium chloride, 20mM lythium chloride, 0.5mM spermine, 32% MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.84 56.68
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 43.127 α = 90 b = 43.127 β = 90 c = 176.579 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 120 CCD MARRESEARCH 2005-11-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE BM16 0.9840 ESRF BM16
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 3.1 40 98.8 0.032 0.062 1301 1284
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 3.1 3.21 96.8 0.053 0.165
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) 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 SAD THROUGHOUT 3.11 25 1139 128 98.29 0.29132 0.28185 0.2763 0.3796 0.3559 RANDOM 54.625
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] 8.73 4.37 8.73 -13.1
RMS Deviations Key Refinement Restraint Deviation r_angle_refined_deg 1.835 r_scangle_it 1.331 r_scbond_it 0.814 r_symmetry_vdw_refined 0.236 r_nbd_refined 0.208 r_chiral_restr 0.076 r_bond_refined_d 0.009 r_gen_planes_refined 0.004 r_bond_other_d r_angle_other_deg
RMS Deviations Key Refinement Restraint Deviation r_angle_refined_deg 1.835 r_scangle_it 1.331 r_scbond_it 0.814 r_symmetry_vdw_refined 0.236 r_nbd_refined 0.208 r_chiral_restr 0.076 r_bond_refined_d 0.009 r_gen_planes_refined 0.004 r_bond_other_d r_angle_other_deg r_dihedral_angle_1_deg r_dihedral_angle_2_deg r_dihedral_angle_3_deg r_dihedral_angle_4_deg r_gen_planes_other r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_it r_mcbond_other r_mcangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 360 Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction SCALEPACK data scaling MOLREP phasing