X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 5.1
Temperature 293.15
Details 0.05 M Na-cacodylate, pH 5.1, 0.2 M KCl, 8 % (w/v) PEG8000 and 80 mM magnesium acetate, VAPOR DIFFUSION, HANGING DROP, temperature 293.15K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 83.78 α = 90
b = 83.78 β = 90
c = 200.07 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 315 -- 2009-06-10
Diffraction Radiation
Monochromator Protocol
SI mirror SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X29A 0.9763 NSLS X29A

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
2.95 20 100.0 0.067 -- -- 11.2 17793 17793 -3.0 -3.0 --
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)
2.95 3.0 100.0 0.51 -- -- 11.5 881

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 2.95 20.0 -- 0.0 16907 16839 904 99.92 0.20111 0.20111 0.19985 0.22544 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 2.95 3.025 -- 67 1198 0.308 0.391 -- 100.0
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 67.13
RMS Deviations
Key Refinement Restraint Deviation
r_mcbond_it 0.094
r_gen_planes_refined 0.002
r_chiral_restr 0.047
r_scangle_it 0.995
r_scbond_it 0.572
r_angle_refined_deg 1.021
r_bond_refined_d 0.005
r_mcangle_it 0.162
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 3807
Heterogen Atoms 47
Solvent Atoms 36

Software

Software
Software Name Purpose
CBASS data collection
REFMAC refinement
HKL-2000 data reduction
HKL-2000 data scaling
REFMAC phasing