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The structure of tryptophan 7-halogenase (PrnA) suggests a mechanism for regioselective chlorination
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2AR8
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 293 8% PEG20000, 0.1M Mes pH6.5, 5mM FAD, 30mM sodium dithionite , VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.6 52.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.3 α = 90 b = 68.3 β = 90 c = 274.9 γ = 90
Symmetry Space Group P 43 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 II 2004-09-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 2.59 54.82 98.2 0.092 0.089 8 3.97 11.5 2.5 57.69
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.59 2.69 96.3 96.3 0.321 0.32 3.3 3.87 1872
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 (All) 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 2AR8 2.6 54.8 20795 1068 98.52 0.214 0.21 0.211 0.2125 0.273 0.2757 RANDOM 29.698
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] 0.25 0.25 -0.5
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.553 r_dihedral_angle_4_deg 19.254 r_dihedral_angle_3_deg 18.594 r_dihedral_angle_1_deg 6.821 r_scangle_it 3.232 r_scbond_it 1.986 r_angle_refined_deg 1.8 r_mcangle_it 1.293 r_mcbond_it 0.721 r_nbtor_refined 0.324
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.553 r_dihedral_angle_4_deg 19.254 r_dihedral_angle_3_deg 18.594 r_dihedral_angle_1_deg 6.821 r_scangle_it 3.232 r_scbond_it 1.986 r_angle_refined_deg 1.8 r_mcangle_it 1.293 r_mcbond_it 0.721 r_nbtor_refined 0.324 r_symmetry_vdw_refined 0.245 r_nbd_refined 0.239 r_symmetry_hbond_refined 0.169 r_xyhbond_nbd_refined 0.166 r_chiral_restr 0.113 r_bond_refined_d 0.017 r_gen_planes_refined 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4008 Nucleic Acid Atoms Solvent Atoms 93 Heterogen Atoms 53
Software Software Software Name Purpose d*TREK data scaling REFMAC refinement PDB_EXTRACT data extraction d*TREK data reduction MOLREP phasing