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Crystal structure of the catalytic domain of botulinum neurotoxin serotype A with inhibitory peptide RRGM
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3BWI PDB entry 3BWI
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.4 293 15% PEG 3350, 0.3M AMMONIUM SULFATE, 0.1M BIS-TRIS, pH 6.40, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.19 43.77
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 50.741 α = 90 b = 66.366 β = 98.43 c = 64.956 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 100 CCD ADSC QUANTUM 315 MIRRORS 2007-10-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X29A 1.0 NSLS X29A
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 1.58 50 86.2 0.056 21.3 6.7 50590 50590 13.8
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 1.58 1.63 48 0.224 3 4.2 2318
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB entry 3BWI 1.58 37.01 49167 49167 2409 84.1 0.196 0.196 0.208 0.2138 RANDOM 23.2
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] 12.99 2.1 -6.04 -6.95
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.6 c_angle_deg 1.2 c_improper_angle_d 0.73 c_bond_d 0.005 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.6 c_angle_deg 1.2 c_improper_angle_d 0.73 c_bond_d 0.005 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3450 Nucleic Acid Atoms Solvent Atoms 367 Heterogen Atoms 16
Software Software Software Name Purpose MOLREP phasing ARP/wARP model building CNS refinement CBASS data collection HKL-2000 data reduction HKL-2000 data scaling CNS phasing