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Crystal Structure of a Novel Engineered Retroaldolase: RA-22
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 298 0.2M AMMONIUM SULFATE, 0.1M SODIUM ACETATE PH 4.6, 27% PEG4000 FOLLOWED BY FURTHER EQUILIBRATION AFTER INITIAL CRYSTALLIZATION OVER 0.2M AMMONIUM SULFATE, 0.1M SODIUM ACETATE PH 4.6, 30% PEG4000, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.21 44.28
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 72.047 α = 90 b = 73.583 β = 90 c = 47.399 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 IMAGE PLATE RIGAKU RAXIS IV++ mirrors 2007-05-24 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 1.54
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.2 36.02 98.9 0.068 10.4 3.48 13187 40.2
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) 2.2 2.28 97.2 0.258 3.8 2.89 1282
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 2.2 36.01 13184 648 98.56 0.238 0.236 0.293 0.264 RANDOM 25.724
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] -0.34 -0.67 1
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.084 r_dihedral_angle_3_deg 18.209 r_dihedral_angle_4_deg 17.683 r_dihedral_angle_1_deg 5.568 r_scangle_it 2.276 r_scbond_it 1.385 r_angle_refined_deg 1.305 r_mcangle_it 0.829 r_mcbond_it 0.49 r_nbtor_refined 0.303
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.084 r_dihedral_angle_3_deg 18.209 r_dihedral_angle_4_deg 17.683 r_dihedral_angle_1_deg 5.568 r_scangle_it 2.276 r_scbond_it 1.385 r_angle_refined_deg 1.305 r_mcangle_it 0.829 r_mcbond_it 0.49 r_nbtor_refined 0.303 r_symmetry_vdw_refined 0.192 r_nbd_refined 0.188 r_symmetry_hbond_refined 0.167 r_xyhbond_nbd_refined 0.14 r_chiral_restr 0.083 r_bond_refined_d 0.009 r_gen_planes_refined 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1925 Nucleic Acid Atoms Solvent Atoms 145 Heterogen Atoms
Software Software Software Name Purpose d*TREK data scaling PHASER phasing REFMAC refinement PDB_EXTRACT data extraction CrystalClear data collection d*TREK data reduction