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How the CCA-adding Enzyme Selects Adenine over Cytosine in Position 76 of tRNA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 300 20% PEG 4000, 0.2 M tri-lithium citrate, 80 mM ammonium sulfate, 50 mM HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 300K
Crystal Properties Matthews coefficient Solvent content 2.82 56.45
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 111.307 α = 90 b = 218.216 β = 90 c = 58.369 γ = 90
Symmetry Space Group P 21 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 2007-07-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X25 NSLS X25
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.78 50 98.2 0.144 9.6 6.7 35291 2
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.78 2.88 85.7
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 MOLECULAR REPLACEMENT THROUGHOUT 2.8 37.8 33457 1767 100 0.214 0.211 0.209 0.268 0.2639 RANDOM 61.63
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] -0.01 0.01
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.885 r_dihedral_angle_3_deg 20.638 r_dihedral_angle_4_deg 18.705 r_dihedral_angle_1_deg 5.999 r_scangle_it 1.765 r_angle_refined_deg 1.265 r_scbond_it 0.992 r_mcangle_it 0.699 r_mcbond_it 0.399 r_symmetry_hbond_refined 0.394
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.885 r_dihedral_angle_3_deg 20.638 r_dihedral_angle_4_deg 18.705 r_dihedral_angle_1_deg 5.999 r_scangle_it 1.765 r_angle_refined_deg 1.265 r_scbond_it 0.992 r_mcangle_it 0.699 r_mcbond_it 0.399 r_symmetry_hbond_refined 0.394 r_nbtor_refined 0.304 r_symmetry_vdw_refined 0.225 r_nbd_refined 0.2 r_xyhbond_nbd_refined 0.155 r_chiral_restr 0.091 r_bond_refined_d 0.009 r_gen_planes_refined 0.003 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 7285 Nucleic Acid Atoms 1440 Solvent Atoms 96 Heterogen Atoms 101
Software Software Software Name Purpose HKL-2000 data collection PHASES phasing REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling