X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.8
Details PROTEIN WAS CRYSTALLIZED FROM 100 MM HEPES PH 7.0, 2.2 M CSCL, AND 1.2 M AMM SO4. THEN IT WAS SOAKED IN 100 MM HEPES PH 7.0, 80% AMM SO4 FOR 24 HOURS TO REMOVE THE CS IONS., pH 6.8

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 65 α = 90
b = 65 β = 90
c = 65.1 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR XUONG-HAMLIN MULTIWIRE -- 1997-05-08
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU -- -- --

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 -- 97.0 -- 0.134 -- 5.0 -- 7204 -- -- --
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)
2.3 2.38 100.0 -- 0.391 4.0 4.6 --

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
DIFFERENCE FOURIER 2.3 10.0 -- 0.0 -- 7046 -- -- -- 0.211 0.211 0.273 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 2.3 2.4 -- 34 772 0.288 0.31 -- --
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.31
x_bond_d 0.011
x_angle_deg 1.454
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 949
Nucleic Acid Atoms 0
Heterogen Atoms 5
Solvent Atoms 112

Software

Computing
Computing Package Purpose
SDMS Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.1 Structure Solution
X-PLOR 3.1 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.1 refinement
X-PLOR version: 3.1 model building
SCALEPACK data reduction
SDMS data collection