X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 3
Temperature 293.0
Details 3.6% (w/v) PEG 8000, 200 mM lithium sulfate, 50 mM sodium citrate, pH 3.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 283.5 α = 90
b = 401.8 β = 89.4
c = 284 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 98
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI -- 1997-01-23
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 -- CHESS F1

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
2.8 50 48.7 0.072 -- -- 1.9 739272 739272 -- -3.0 48.6
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)
2.8 2.83 2.8 0.257 -- -- 1.0 1399

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
-- 2.8 30.0 -- 4.0 738802 567810 56852 37.2 0.246 0.227 0.218 0.219 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
x_torsion_impr_deg 0.73
x_torsion_deg 28.0
x_angle_deg 1.4
x_bond_d 0.008
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4528
Nucleic Acid Atoms 0
Heterogen Atoms 3
Solvent Atoms 199

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
GLRF Structure Solution
X-PLOR 3.851 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.851 refinement
GLRF model building