X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.4
Details 20-24% PEG 8000, 2.5% 2-PROPANOL, 10 MM CACL2 0.1 M TRIS-HCL BUFFER, PH 7.5-8.5, pH 7.4

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 37.9 α = 90
b = 78.8 β = 90
c = 105.4 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 173
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- 1995-11-01
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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 96.1 0.073 -- -- 2.5 -- 13990 -- 2.0 --

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
OTHER 2.3 6.0 -- 2.0 -- 13990 -- 96.1 -- -- 0.256 0.263 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
x_angle_deg 3.26
x_bond_d 0.016
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2722
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 120

Software

Software
Software Name Purpose
X-PLOR model building
X-PLOR refinement version: 3.5
DENZO data reduction
SCALEPACK data scaling
X-PLOR phasing