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High resolution crystal structure of T4 lysozyme mutant L20R63/A liganded to guanidinium ion
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1T8A PDB ENTRY 1T8A
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 277 0.5 mM protein, 1.8 M MIXED POTASSIUM AND SODIUM PHOSPHATE, 0.2 M GUANIDINIUM CHLORIDE, PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K, pH 6.50
Crystal Properties Matthews coefficient Solvent content 2.64 53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.712 α = 90 b = 60.712 β = 90 c = 95.352 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 100 CCD ADSC KOHZU: Double Crystal Si(111) 2005-05-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.2.1 ALS 8.2.1
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 1.45 30 90 0.077 27 36743 18.7
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) 1.45 1.5 89 0.228 3.6
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1T8A 1.45 30 32322 1618 90 0.2 0.2 0.2073 0.223 0.2272 RANDOM 22.4
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] 0.48 1.22 0.48 -0.96
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 19.2 c_scangle_it 5.54 c_scbond_it 4.21 c_mcangle_it 3 c_mcbond_it 2.13 c_angle_deg 1.5 c_improper_angle_d 1.07 c_bond_d 0.013 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 19.2 c_scangle_it 5.54 c_scbond_it 4.21 c_mcangle_it 3 c_mcbond_it 2.13 c_angle_deg 1.5 c_improper_angle_d 1.07 c_bond_d 0.013 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1414 Nucleic Acid Atoms Solvent Atoms 181 Heterogen Atoms 13
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement CNS phasing