X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 7.6
Temperature 277.0
Details 800 mM sodium acetate, 100mM Sodium Cacodylate, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 67.27 α = 90
b = 67.27 β = 90
c = 130.12 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 a front end, vertically collimating premirror, double-crystal silicon (111) monochromator with a fixed-height exit beam, toroidal focusing mirror --
Diffraction Radiation
Monochromator Protocol
double-crystal silicon (111) monochromator with a fixed-height exit beam SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ALS BEAMLINE 5.0.2 0.97 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
2.3 20 96.0 0.07 0.099 -- 7.53 15464 14845 1.0 1.0 61.9

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 3.1 20.0 1.0 1.0 5669 5510 683 96.68 -- 0.257 0.252 0.302 random
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model isotropic
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1887
Nucleic Acid Atoms 0
Heterogen Atoms 21
Solvent Atoms 0

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
CNS Structure Solution
REFMAC Structure Refinement
Software
Software Name Purpose
CNS model building
SCALEPACK data reduction
DENZO data collection
REFMAC refinement