X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details 22% PEG 8000, 100 MM TRIS-HCL, PH 7.5, 2% ETHYLENE GLYCOL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 66.5 α = 90
b = 66.5 β = 90
c = 139.1 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE FUJI MIRROR 1996-06
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X4A -- NSLS X4A

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
1.9 20 98.6 0.065 0.065 -- 4.1 -- 28286 -- 0.0 --

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
MOLECULAR REPLACEMENT 1.9 6.0 -- 2.0 -- 25082 1261 90.2 -- 0.194 0.194 0.226 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 1.9 1.97 -- 102 1812 0.189 0.223 0.02 70.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 18.9
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 4.35
x_scbond_it 2.87
x_mcangle_it 2.16
x_mcbond_it 1.46
x_improper_angle_d 1.2
x_bond_d 0.008
x_angle_deg 1.5
x_dihedral_angle_d 23.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2418
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 202

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE Structure Solution
X-PLOR 3.816 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.816 refinement
AMORE model building