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The Crystal structure of receptor binding domain of botulinum neurotoxin serotype A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3TBA PDB entry 3TBA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.6 292 0.1 M Hepes pH 7.6, 12% PEG8K, 8% glycerol and 0.1 M NaCl, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Crystal Properties Matthews coefficient Solvent content 2.36 47.84
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 39.77 α = 90 b = 105.14 β = 90 c = 112.23 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 CCD ADSC QUANTUM 315r 2006-06-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 19-ID 1.0 APS 19-ID
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 1.8 18.92 94.6 0.069 42220 -3 17.3
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.8 1.86 96.1 0.56 2.8 5.8 4187
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-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 3TBA 1.8 18.92 40598 4080 91.1 0.221 0.221 0.2196 0.248 0.2467 RANDOM 22.2
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] -5.44 -1.12 6.56
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 25.3 c_scangle_it 2.18 c_mcangle_it 1.62 c_scbond_it 1.44 c_angle_deg 1.4 c_mcbond_it 0.96 c_improper_angle_d 0.69 c_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3427 Nucleic Acid Atoms Solvent Atoms 208 Heterogen Atoms
Software Software Software Name Purpose ADSC data collection MERLOT phasing CNS refinement HKL-3000 data reduction SCALEPACK data scaling