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Crystal structure of botulinum neurotoxin type A complexed with monoclonal antibody CR1
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3BTA PDB ENTRY 3BTA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 5.5 297 8% PEG 20000, 8% PEG 550 MME, 200 mM calcium acetate, 100 mM sodium acetate, pH 5.50, VAPOR DIFFUSION, SITTING DROP, temperature 297K
Crystal Properties Matthews coefficient Solvent content 3.61 65.94
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 98.046 α = 90 b = 148.249 β = 90 c = 196.25 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 2005-02-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL11-1 SSRL BL11-1
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 2.6 50 89.4 0.095 87498 2
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 2.61 2.68 44.8 0.388
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 3BTA 2.61 50 2 87498 74507 3912 89.4 0.208 0.206 0.211 0.246 0.248 RANDOM 11.41
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] -4.77 0.04 4.73
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.123 r_dihedral_angle_3_deg 17.83 r_dihedral_angle_4_deg 16.494 r_dihedral_angle_1_deg 11.264 r_scangle_it 1.968 r_angle_refined_deg 1.5 r_scbond_it 1.209 r_angle_other_deg 0.908 r_mcangle_it 0.907 r_mcbond_it 0.537
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.123 r_dihedral_angle_3_deg 17.83 r_dihedral_angle_4_deg 16.494 r_dihedral_angle_1_deg 11.264 r_scangle_it 1.968 r_angle_refined_deg 1.5 r_scbond_it 1.209 r_angle_other_deg 0.908 r_mcangle_it 0.907 r_mcbond_it 0.537 r_nbd_refined 0.229 r_symmetry_vdw_other 0.224 r_symmetry_vdw_refined 0.22 r_nbd_other 0.206 r_symmetry_hbond_refined 0.206 r_nbtor_refined 0.197 r_xyhbond_nbd_refined 0.165 r_metal_ion_refined 0.134 r_nbtor_other 0.091 r_chiral_restr 0.085 r_mcbond_other 0.078 r_xyhbond_nbd_other 0.027 r_bond_refined_d 0.013 r_gen_planes_refined 0.004 r_bond_other_d 0.002 r_gen_planes_other 0.001 r_metal_ion_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 13505 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 2
Software Software Software Name Purpose REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling MOLREP phasing