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Increased folding stability of TEM-1 beta-lactamase by in-vitro selection
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1BTL PDB ENTRY 1BTL
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 288 1.6-1.8 M Ammonium citrate, 5% PEG 400, 0.1M Tris buffer, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K
Crystal Properties Matthews coefficient Solvent content 2.39 48.61
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 39.82 α = 90 b = 79.68 β = 90 c = 87.07 γ = 90
Symmetry Space Group P 21 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 IMAGE PLATE MAR scanner 345 mm plate 2006-12-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR 1.54
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 1.86 19.59 99.75 23406 23406 5 8.3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.86 1.9 97.6 0.348 0.348 3.6
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1BTL 2 19.41 18342 18342 991 99.75 0.21785 0.215 0.2249 0.27163 0.2287 RANDOM 6.495
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] 0.03 0.01 -0.04
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.34 r_dihedral_angle_4_deg 19.544 r_dihedral_angle_3_deg 16.645 r_dihedral_angle_1_deg 5.757 r_scangle_it 2.773 r_scbond_it 1.67 r_angle_refined_deg 1.361 r_mcangle_it 1.006 r_mcbond_it 0.606 r_nbtor_refined 0.299
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 36.34 r_dihedral_angle_4_deg 19.544 r_dihedral_angle_3_deg 16.645 r_dihedral_angle_1_deg 5.757 r_scangle_it 2.773 r_scbond_it 1.67 r_angle_refined_deg 1.361 r_mcangle_it 1.006 r_mcbond_it 0.606 r_nbtor_refined 0.299 r_symmetry_hbond_refined 0.231 r_nbd_refined 0.208 r_symmetry_vdw_refined 0.194 r_xyhbond_nbd_refined 0.169 r_chiral_restr 0.088 r_bond_refined_d 0.012 r_gen_planes_refined 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2021 Nucleic Acid Atoms Solvent Atoms 120 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement MAR345dtb data collection XDS data reduction ADDREF data scaling AMoRE phasing