X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.6
Details 0.1 M NA CITRATE PH 5.6, 20% ISOPROPANOL, 10% PEG 4000

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 93.7 α = 90
b = 93.7 β = 90
c = 76.17 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 -- -- --
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE BM14 0.9, 0.97, 0.979 ESRF BM14

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
2.4 20 98.7 -- 0.039 -- 3.0 -- 14892 -- -- --
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)
2.4 2.45 97.5 -- 0.237 2.8 2.7 --

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
MAD 2.4 30.0 -- 2.0 -- 14892 726 97.5 -- 0.192 0.192 0.228 --
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.021
c_angle_deg 1.86
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1458
Nucleic Acid Atoms 0
Heterogen Atoms 4
Solvent Atoms 171

Software

Software
Software Name Purpose
CNS refinement version: 0.5
DENZO data reduction
SCALA data scaling
SOLVE phasing