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Crystal structure of O-Acetyl Serine Sulfhydrylase from Entamoeba histolytica in complex with isoleucine
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2PQM
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.2 289 2.1M AmSO4, 150mM NaCl, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Crystal Properties Matthews coefficient Solvent content 2.46 49.97
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 80.411 α = 90 b = 80.411 β = 90 c = 112.157 γ = 90
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 MAR scanner 345 mm plate 2008-05-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR 1.54
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.03 30 97.4 45105 10.7 3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.03 2.11 98.2
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 2PQM 2.03 27.57 2 42877 2228 98.59 0.1823 0.1798 0.1805 0.2321 0.2331 RANDOM 27.5994
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] -0.05 -0.05 0.09
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.524 r_dihedral_angle_4_deg 17.902 r_dihedral_angle_3_deg 15.4 r_dihedral_angle_1_deg 5.672 r_angle_refined_deg 1.433 r_chiral_restr 0.091 r_bond_refined_d 0.011 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5145 Nucleic Acid Atoms Solvent Atoms 235 Heterogen Atoms 14
Software Software Software Name Purpose SCALEPACK data scaling REFMAC refinement PDB_EXTRACT data extraction MAR345dtb data collection AUTOMAR data reduction CCP4 phasing