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CRYSTAL STRUCTURE OF A PSYCHROPHILIC ALKALINE PROTEASE FROM PSEUDOMONAS TAC II 18
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1KAP A lower resolution structure (not yet deposited) solved by the molecular replacement method using pdb entry 1KAP as a search model
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 293 ammonium sulphate, Hepes, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.59 52.58
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 186.01 α = 90 b = 186.01 β = 90 c = 37.97 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 289 IMAGE PLATE MARRESEARCH mirrors 2000-10-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE ENRAF-NONIUS FU581 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 1.96 93.01 95.7 0.058 16.1 4 34749 33263 1 1 16.1
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 1.96 2.01 87.6 0.268 2.7 2 2029
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT A lower resolution structure (not yet deposited) solved by the molecular replacement method using pdb entry 1KAP as a search model 1.96 46.13 35179 33261 3304 94.5 0.156 0.1657 0.187 0.1933 random 18.9
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 c_dihedral_angle_d 25.3 c_angle_d 1.179 c_improper_angle_d 0.65 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3387 Nucleic Acid Atoms Solvent Atoms 355 Heterogen Atoms 13
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement CNS phasing