X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.7
Temperature 277.0
Details 2.5 M (NH4)2SO4, 50 mM Tris-SO4 pH 7.7, 50 mM Tris-SO4 pH 8.0, 1mM methylmercuric acetate, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 42.35 α = 90
b = 41.36 β = 104.34
c = 72.17 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 mirrors 2005-04-20
Diffraction Radiation
Monochromator Protocol
Si(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 0.9124 CHESS F1

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
1.25 50 95.0 -- 0.087 -- 2.5 64009 64009 0.0 0.0 10.8
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)
1.25 1.29 87.9 -- 0.83 2.1 2.2 5879

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 1.25 50.0 0.0 0.0 63791 63791 1362 95.0 0.1641 0.1641 0.1652 0.2128 random
RMS Deviations
Key Refinement Restraint Deviation
s_non_zero_chiral_vol 0.074
s_zero_chiral_vol 0.064
s_from_restr_planes 0.0314
s_angle_d 0.028
s_bond_d 0.012
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2050
Nucleic Acid Atoms 0
Heterogen Atoms 37
Solvent Atoms 239

Software

Computing
Computing Package Purpose
HKL-2000 Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
CNS model building
SCALEPACK data reduction
HKL-2000 data collection