X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details 0.1 M MES PH 6.0-6.2 25% PEG 6000 PSEUDOURIDINE AT 10X PROTEIN CONCENTRATION

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 53.57 α = 90
b = 70.45 β = 98.02
c = 122.78 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 108
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC -- 1997-02-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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 30 88.4 -- 0.067 -- 2.9 -- 55716 -- -- --

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 2.1 30.0 -- 2.0 -- 54378 2431 82.9 -- 0.232 0.232 0.276 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 2.1 2.2 -- 209 4220 0.3171 0.3677 -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 26.9
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 1.2
x_bond_d 0.007
x_dihedral_angle_d 22.6
x_improper_angle_d 1.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 6438
Nucleic Acid Atoms 0
Heterogen Atoms 44
Solvent Atoms 110

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement version: 3.8
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing