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Crystal Structure of recombinant Botulinum Neurotoxin Type A Light Chain, self-inhibiting Zn endopeptidase.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3BTA LC COORDINATES OF PDB ENTRY 3BTA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.6 HANGING DROP VAPOUR DIFFUSION, DROP: 4UL 5MG/ML PROTEIN & 2UL WELL. PROTEIN: 0.05M TRIS PH 8.0,10% GLYCEROL, 0.1% TRITON X-100,1.0MM 2-ME,4% XYLITOL. WELL: 0.2M (NH4)2SO4,0.1M NAOAC PH 4.6, 25% PEG4000.
Crystal Properties Matthews coefficient Solvent content 2.91 53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 58.064 α = 90 b = 94.263 β = 103.52 c = 100.156 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 125 CCD ADSC CCD DOUBLE FOCUSSING 2000-01-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 5.0.2 ALS 5.0.2
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 19.34 95.2 0.042 7.9 1.9 93168 24.47
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 1.8 1.9 95.2 0.383 1.7 1.9
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 LC COORDINATES OF PDB ENTRY 3BTA 1.8 19.34 92076 4649 95.2 0.196 0.1904 0.237 RANDOM 31.5
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 26.21 p_staggered_tor 16.95 p_planar_tor 5.21 p_scangle_it 5.051 p_scbond_it 3.454 p_mcangle_it 2.646 p_mcbond_it 1.904 p_multtor_nbd 0.276 p_chiral_restr 0.191 p_singtor_nbd 0.182
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 26.21 p_staggered_tor 16.95 p_planar_tor 5.21 p_scangle_it 5.051 p_scbond_it 3.454 p_mcangle_it 2.646 p_mcbond_it 1.904 p_multtor_nbd 0.276 p_chiral_restr 0.191 p_singtor_nbd 0.182 p_xyhbond_nbd 0.143 p_planar_d 0.027 p_bond_d 0.02 p_angle_d 0.019 p_plane_restr 0.018 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 6460 Nucleic Acid Atoms Solvent Atoms 768 Heterogen Atoms 2
Software Software Software Name Purpose REFMAC refinement MOSFLM data reduction SCALA data scaling EPMR phasing