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Native structure of chimaeric amylase from B. amyloliquefaciens and B. licheniformis at 1.7A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1E3X
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 10 291 CRYSTALS WERE GROWN AT 18C USING THE HANGING DROP METHOD WITH 8-13% MONOMETHYL ETHER POLYETHYLENE GLYCOL 2000 OR 5000 AS PRECIPITANT. DROPS WERE BUFFERED WITH 0.1M TRIS/HCL PH 7.5 CONTAINING 5MM CACL2 AND THE PROTEIN CONCENTRATION WAS 30-35MG/ML.
Crystal Properties Matthews coefficient Solvent content 2.34 47
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 52.2 α = 90 b = 76.1 β = 90 c = 236.5 γ = 90
Symmetry Space Group C 2 2 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-Q4 1999-09-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-4 ESRF ID14-4
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 1.7 30 98 0.07 15 3 51292
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 1.7 1.76 99 0.081 13 3.1
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1E3X 1.7 20 51292 2491 98 0.133 0.1448 0.185 RANDOM 10.2
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 p_transverse_tor 29.5 p_staggered_tor 13.3 p_planar_tor 4 p_scangle_it 2.532 p_scbond_it 1.695 p_mcangle_it 1.476 p_mcbond_it 1.073 p_multtor_nbd 0.207 p_singtor_nbd 0.174 p_chiral_restr 0.105
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 29.5 p_staggered_tor 13.3 p_planar_tor 4 p_scangle_it 2.532 p_scbond_it 1.695 p_mcangle_it 1.476 p_mcbond_it 1.073 p_multtor_nbd 0.207 p_singtor_nbd 0.174 p_chiral_restr 0.105 p_xyhbond_nbd 0.104 p_planar_d 0.028 p_angle_d 0.026 p_plane_restr 0.012 p_bond_d 0.01 p_angle_deg p_hb_or_metal_coord p_xhyhbond_nbd p_orthonormal_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3900 Nucleic Acid Atoms Solvent Atoms 933 Heterogen Atoms 5
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling CCP4 phasing