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DISECTING HISTIDINE INTERACTIONS IN RIBONUCLEASE T1 BY ASN AND GLN SUBSTITUTIONS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1BIR PDB ENTRY 1BIR
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 4.2 VAPOR DIFFUSION, NAOAC PH 4.2, 20 MG/ML PROTEIN, 45 % MPD 2.5 MM CACL2, 20 MM GPS
Crystal Properties Matthews coefficient Solvent content 2.13 42.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 40.16 α = 90 b = 46.88 β = 90 c = 50.07 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 293 IMAGE PLATE MARRESEARCH DUAL SLITS 1995-11-06 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU
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 2.3 10 94 0.107 5.5 5 4313 3 14.2
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.3 2.38 50 0.239 3.1 4.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1BIR 1.8 10 8600 475 94 0.192 0.192 0.237 RANDOM 15.3
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 x_dihedral_angle_d 26.2 x_scangle_it 3.71 x_improper_angle_d 2.82 x_scbond_it 2.72 x_angle_deg 2.5 x_mcangle_it 2.11 x_mcbond_it 1.42 x_bond_d 0.028 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 26.2 x_scangle_it 3.71 x_improper_angle_d 2.82 x_scbond_it 2.72 x_angle_deg 2.5 x_mcangle_it 2.11 x_mcbond_it 1.42 x_bond_d 0.028 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 789 Nucleic Acid Atoms 29 Solvent Atoms 384 Heterogen Atoms
Software Software Software Name Purpose MOSFLM data reduction ROTAVATA data reduction AMoRE phasing X-PLOR refinement CCP4 data scaling