X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Dialysis
Details THE PURIFIED PROTEIN HAS BEEN DIALYSED INTO A 10 MM TRIS-HCL PH 7.5 BUFFER ALSO CONTAINING 20 MM NACL. PEG 1550 WAS USED AS PRECIPITANT., dialysis

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.27 α = 90
b = 83.51 β = 90
c = 40.23 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 269
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR XENTRONICS -- 1995-08
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
1.8 36 95.1 0.054 -- -- 2.9 -- 65498 -- 0.0 18.5
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)
1.8 1.85 79.2 0.301 -- -- 1.6 --

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 2.0 6.0 -- 0.0 -- 15982 -- -- -- -- 0.171 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.2
RMS Deviations
Key Refinement Restraint Deviation
p_staggered_tor 16.5
p_planar_tor 2.3
p_bond_d 0.013
p_angle_d 0.041
p_mcbond_it 0.9
p_mcangle_it 1.4
p_scbond_it 1.5
p_scangle_it 2.3
p_plane_restr 0.013
p_chiral_restr 0.113
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1731
Nucleic Acid Atoms 0
Heterogen Atoms 17
Solvent Atoms 182

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
AGROVATA, ROTAVATA Data Reduction (data scaling)
MLPHARE Structure Solution
PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
MLPHARE model building
AGROVATA/ROTAVATA data reduction
MOSFLM data collection