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Crystal Structure of the Beta Carbonic Anhydrase psCA3 isolated from Pseudomonas aeruginosa - alternate crystal packing form
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4RXY
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 290 Hampton Research Crystal Screen 2, PEG/Ion, PEG/Ion 2, an in-house sodium citrate screen (screening conditions varied from 1.1 to 1.8 M sodium citrate, Tris-HCl pH 7.1-8.1), and an in-house ammonium sulfate screen (screening conditions varied from 1.8 M to 2.8 M ammonium sulfate, 0.1 M malic acid, 0.1 M imidazole pH 7.0-8.5) prepared by the Rigaku Alchemist DT were used to screen for optimum crystallization conditions.
Crystal Properties Matthews coefficient Solvent content 2.52 51.11
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 88.429 α = 90 b = 69.362 β = 90 c = 77.66 γ = 90
Symmetry Space Group P 2 21 21
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 QUANTUM 270 2013-03-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE F1 0.9177 CHESS F1
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 2.585 35.553 91.48 17.3 3.2 14191
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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 4RXY 2.585 35.553 1.34 14191 710 91.48 0.2148 0.2117 0.2143 0.2751 0.2715
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]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 14.689 f_angle_d 1.243 f_chiral_restr 0.057 f_bond_d 0.009 f_plane_restr 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3312 Nucleic Acid Atoms Solvent Atoms 22 Heterogen Atoms 2
Software Software Software Name Purpose PHENIX refinement HKL-2000 data scaling HKL-2000 data reduction PHENIX phasing