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Acarbose complex of chimaeric amylase from B. amyloliquefaciens and B. licheniformis at 1.93A
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 7.5 291 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. CRYSTALS WERE THEN SOAKED IN 10MM ACARBOSE SOLUTION TO OBTAIN THE COMPLEX.
Crystal Properties Matthews coefficient Solvent content 2.34 47
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 52.72 α = 90 b = 78.27 β = 90 c = 238.86 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 293 IMAGE PLATE MARRESEARCH 1995-05-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 EMBL/DESY, HAMBURG X11
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 1.93 30 100 0.07 16 4.1 38273
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 1.93 1.96 99 0.13 10 3.5
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 1.93 20 36166 1844 100 0.13 0.1274 0.2 RANDOM 12.1
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 28.6 p_staggered_tor 14 p_planar_tor 3.5 p_scangle_it 2.655 p_mcangle_it 1.791 p_scbond_it 1.697 p_mcbond_it 1.223 p_multtor_nbd 0.195 p_singtor_nbd 0.167 p_xyhbond_nbd 0.122
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 28.6 p_staggered_tor 14 p_planar_tor 3.5 p_scangle_it 2.655 p_mcangle_it 1.791 p_scbond_it 1.697 p_mcbond_it 1.223 p_multtor_nbd 0.195 p_singtor_nbd 0.167 p_xyhbond_nbd 0.122 p_chiral_restr 0.118 p_angle_d 0.026 p_planar_d 0.026 p_bond_d 0.01 p_plane_restr 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 680 Heterogen Atoms 113
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling CCP4 phasing