6PNW

X-RAY STRUCTURE OF ERABUTOXIN C, A DIMERIC NEUROTOXIN


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION6298PHOSPHATE BUFFER, AMMONIUM SULFATE PH 6
Crystal Properties
Matthews coefficientSolvent content
2.2344.87

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.6α = 90
b = 53.75β = 90
c = 40.99γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray290DIFFRACTOMETERSYNTEXSyntex P21 diffractometer1983-02-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBEOTHER1.542

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
123885.60.087.32.27681
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
122.270

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTNONEPDB entry 3EBX, ERABUTOXIN B2104746985.60.161NONE
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms948
Nucleic Acid Atoms
Solvent Atoms145
Heterogen Atoms

Software

Software
Software NamePurpose
PROLSQrefinement
REFPKdata processing
SORTAVdata scaling
SORTVAdata reduction
TFORMphasing
FRFSphasing