X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6
Temperature 20.0
Details 1.8 M Lithium sulphate and 50 mM sodium cacodylate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 20.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65.64 α = 90
b = 65.64 β = 90
c = 137.48 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-12-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 1.15 ALS 5.0.2

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
2.85 19.76 99.53 0.072 0.064 -- 5.2 7544 7544 -- 0.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.85 2.923 99.3 0.349 0.316 2.2 5.3 565

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
FOURIER SYNTHESIS 2.85 19.76 -- 0.0 7544 7544 840 99.53 0.20607 0.20607 0.20332 0.23241 --
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 2.85 2.923 -- 64 514 0.479 -- 0.468 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.892
Anisotropic B[1][1] 0.12
Anisotropic B[1][2] 0.06
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.12
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -0.18
RMS Deviations
Key Refinement Restraint Deviation
r_bond_refined_d 0.01
r_gen_planes_refined 0.007
r_xyhbond_nbd_refined 0.228
r_scangle_it 2.152
r_chiral_restr 0.097
r_nbd_refined 0.203
r_symmetry_hbond_refined 0.152
r_symmetry_vdw_refined 0.224
r_angle_refined_deg 2.007
r_scbond_it 1.34
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.28
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 873
Heterogen Atoms 4
Solvent Atoms 0

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
CNS refinement
REFMAC refinement version: 5.1
CCP4 data scaling version: (SCALA)
CNS phasing