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_scangle_it 2.3
p_staggered_tor 16.5
p_mcbond_it 0.9
p_bond_d 0.013
p_plane_restr 0.013
p_chiral_restr 0.113
p_angle_d 0.041
p_planar_tor 2.3
p_mcangle_it 1.4
p_scbond_it 1.5
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1774
Nucleic Acid Atoms 0
Heterogen Atoms 17
Solvent Atoms 182

Software

Software
Software Name Purpose
MOSFLM data reduction
AGROVATA/ROTAVATA data reduction
MLPHARE phasing
PROLSQ refinement
AGROVATA data scaling
ROTAVATA data scaling