X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.3
Temperature 277.0
Details BACE was concentrated to 10mg/ml in 100 mM borate pH 8.5, 9% PEG 8000, 100mM sodium acetate and 10mM ZnCl2 , VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.17 α = 90
b = 103.53 β = 90
c = 100.5 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD RIGAKU SATURN 944+ -- 2011-01-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU MICROMAX-007 HF 1.5418 -- --

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
1.8 60 95.0 -- -- -- -- 30671 32259 1.0 1.0 --

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 1.8 60.0 -- -- -- 30249 1597 81.25 -- 0.21115 0.20822 0.2656 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 1.76 1.806 -- 31 509 0.385 0.52 -- 18.82
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 30.712
Anisotropic B[1][1] -1.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -0.86
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 1.86
RMS Deviations
Key Refinement Restraint Deviation
r_dihedral_angle_2_deg 34.882
r_angle_refined_deg 2.033
r_dihedral_angle_4_deg 13.62
r_mcbond_it 1.338
r_gen_planes_refined 0.01
r_bond_refined_d 0.023
r_chiral_restr 0.158
r_scangle_it 5.101
r_dihedral_angle_3_deg 16.218
r_scbond_it 3.23
r_dihedral_angle_1_deg 7.731
r_mcangle_it 2.301
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3099
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 347

Software

Software
Software Name Purpose
StructureStudio data collection
MOLREP phasing
REFMAC refinement version: 5.5.0109