4F83

Crystal structure of the receptor binding domain of botulinum neurotoxin mosaic serotype C/D with a tetraethylene glycol molecule bound on the Hcn sub-domain and a sulfate ion at the putative active site


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion
pH 7.5
Temperature 293.0
Details 1.6 M Ammonium Sulfate, 2% PEG 400, 0.1 M Hepes, pH 7.5, VAPOR DIFFUSION, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 40.53 α = 90
b = 112.1 β = 98.64
c = 50.17 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315r -- 2010-12-20
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.1 0.98 ALS 5.0.1

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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
1.7 50 100.0 -- -- -- -- 46015 46015 -- -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 1.7 45.36 -- -- 46015 46015 1472 98.2 0.17024 0.16972 0.16879 0.19755 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.702 1.747 -- 101 3266 0.235 0.304 -- 94.69
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 25.154
Anisotropic B[1][1] -0.16
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.1
Anisotropic B[2][2] -0.07
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.26
RMS Deviations
Key Refinement Restraint Deviation
r_gen_planes_refined 0.007
r_mcangle_it 1.804
r_dihedral_angle_1_deg 6.737
r_chiral_restr 0.11
r_mcbond_it 0.984
r_scangle_it 4.365
r_bond_refined_d 0.016
r_dihedral_angle_2_deg 36.286
r_dihedral_angle_3_deg 12.791
r_angle_refined_deg 1.271
r_scbond_it 2.716
r_dihedral_angle_4_deg 12.103
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3404
Nucleic Acid Atoms 0
Heterogen Atoms 66
Solvent Atoms 299

Software

Software
Software Name Purpose
HKL-2000 data collection
PHASER phasing
REFMAC refinement version: 5.5.0102
HKL-2000 data reduction
HKL-2000 data scaling