X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
11.0M Ammonium sulfate in water, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 292K. Protein stock was BACE MUT46B batch XII 8.5 mg/mL in 10mM Tris-HCl pH 7.4, 25mM NaCl, with a 5-fold excess of NVP-AFJ144-NX-2 added from a 50mM stock solution in 90% DMSO-D6 (1.8% DMSO in drop). A solution containing 1.2M Ammonium sulfate, 25% Glycerol, 1mM NVP-AFJ144-NX-2 and 1.8% DMSO was used as cryo-protectant
Crystal Properties
Matthews coefficientSolvent content
3.160.26

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 82.537α = 90
b = 103.062β = 103.64
c = 100.602γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRIGAKU SATURN 92Mirrors2005-11-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU FR-E SUPERBRIGHT1.54178

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
11.9770.9393.50.06822.5510.2107931107931-333.092
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.972.0361.70.3953.84.76065

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1FKN1.9770.931079311079311041393.40.2040.2040.2020.223RANDOM35.063
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]
-1.27-0.092.16-0.89
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d24.5
c_scangle_it3.02
c_mcangle_it2.34
c_scbond_it2
c_mcbond_it1.47
c_angle_deg0.8
c_improper_angle_d0.62
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8777
Nucleic Acid Atoms
Solvent Atoms750
Heterogen Atoms99

Software

Software
Software NamePurpose
XSCALEdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
CNXphasing
CNXrefinement