X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.4
Temperature 18.0
Details protein: 50mM Bis-Tris pH 6.4, 100mM sodium chloride, 10mM magnesium chloride, 10mM dithiothreitol Well: 0.15-0.3M potassium formate, 15-23% PEG3350, VAPOR DIFFUSION, HANGING DROP, temperature 18K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 78.46 α = 90
b = 122.03 β = 90
c = 136.77 γ = 90
Symmetry
Space Group C 2 2 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IV -- 2000-10-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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 15 94.5 0.057 -- -- 9.1 29694 270151 -- -3.0 47.1
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)
2.3 2.34 94.5 0.56 -- -- 9.2 1396

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 2.3 50.0 -- 0.0 29548 28175 2824 95.4 0.229 0.229 0.222 0.279 random
RMS Deviations
Key Refinement Restraint Deviation
c_bond_d 0.015
c_angle_deg 1.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4418
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 124

Software

Software
Software Name Purpose
AMoRE phasing
CNS refinement version: 0.9
DENZO data reduction
SCALEPACK data scaling