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STRUCTURE OF THE D121A VARIANT OF RIBONUCLEASE A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1RPH PDB ENTRY 1RPH
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.3 DROPS CONSISTING OF 1.5UL OF A 60MG/ML PROTEIN SOLUTION, 1.5UL OF H2O AND 3UL OF RESERVOIR SOLUTION WERE SUSPENDED OVER A 0.5ML RESERVOIR CONTAINING A SOLUTION OF 2.5M NAOAC, PH 5.3 IN SATURATING NACL. TEMP. 20C.
Crystal Properties Matthews coefficient Solvent content 2.87 60
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 64.7 α = 90 b = 64.7 β = 90 c = 65.03 γ = 120
Symmetry Space Group P 32 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 277 AREA DETECTOR SIEMENS LONG MIRRORS 1996-02-07 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RUH2R
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 1.6 30 91 0.029 20 2.1 27087 0.33
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) 1.6 1.7 85 0.14
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 1RPH 1.6 30 19996 19996 91 0.18
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 t_dihedral_angle_d 16.8 t_angle_deg 2.78 t_it 1 t_nbd 0.046 t_bond_d 0.013 t_gen_planes 0.011 t_trig_c_planes 0.007 t_incorr_chiral_ct t_pseud_angle
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 953 Nucleic Acid Atoms Solvent Atoms 102 Heterogen Atoms 6
Software Software Software Name Purpose XDS data scaling XCALIBRE data reduction AMoRE phasing TNT refinement XDS data reduction XCALIBRE data scaling