X-RAY DIFFRACTION Experimental Data & Validation


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Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8.5
Temperature 277.0
Details CRYSTALS WERE OBTAINED AT 277 K BY THE HANGING-DROP VAPOR DIFFUSION METHOD FROM SOLUTIONS CONTAINING 10 MG/ML(PROTEIN,GTPGAMMAS,MG2+ MIXTURE), 10% PEG 8000,7.5% 14-DIOXANE, 50 MM TRIS-HCL PH 8.5, EQUILIBRATED AGAINST 20% PEG 8000,15% 14-DIOXANE, 100 MM TRIS-HCL PH 8.5, vapor diffusion - hanging drop

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.02 α = 90
b = 74.78 β = 90
c = 50.52 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 283
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1997-03
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH3R -- -- --

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
2.4 -- 89.3 0.0875 -- -- -- -- 8683 -- 1.0 31.6
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)
2.4 2.5 74.8 0.267 -- 2.04 -- --

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 2.4 15.0 -- 1.0 -- 8382 893 86.7 -- 0.195 0.195 0.268 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 2.4 2.51 -- 77 717 0.306 0.381 -- 66.4
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 43.5
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.099
x_bond_d 0.01
x_angle_deg 1.314
x_dihedral_angle_d 22.36
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1417
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 38

Software

Computing
Computing Package Purpose
PROCESS Data Reduction (intensity integration)
PROCESS Data Reduction (data scaling)
X-PLOR 3.8 Structure Solution
X-PLOR 3.8 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.8 refinement
X-PLOR version: 3.8 model building
PROCESS data reduction
PROCESS data collection