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CRYSTAL STRUCTURE OF E. COLI BETA CARBONIC ANHYDRASE (ECCA)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1I6O PDB ENTRY 1I6O
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.3 293 ammonium sulfate, MES pH 6.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.009 36.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.535 α = 90 b = 68.535 β = 90 c = 85.877 γ = 90
Symmetry Space Group P 42 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 291 IMAGE PLATE RIGAKU RAXIS IV mirrors 1999-04-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
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 40 96.7 0.065 20.4 6.5 90500 13974 15.6
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) 1 2 2.03 96.9 0.309 4.4 3.5
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) 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 1I6O 2 42.21 13958 13653 1379 94.7 0.176 0.176 0.202 RANDOM 28.8
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 -0.34 0.69
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 20.4 c_angle_deg 1.1 c_improper_angle_d 0.62 c_bond_d 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1715 Nucleic Acid Atoms Solvent Atoms 62 Heterogen Atoms 1
Software Software Software Name Purpose EPMR phasing CNS refinement DENZO data reduction SCALEPACK data scaling