X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details CRYSTALLIZED FROM 1.5M AMMONIUM SULFATE, 100 MM HEPES, PH 7.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 178.72 α = 90
b = 178.72 β = 90
c = 56.62 γ = 120
Symmetry
Space Group P 63

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD PRINCETON 2K MIRRORS 1996-09
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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
2.6 35 87.5 -- 0.056 -- 2.5 -- 28128 -- 0.0 --
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)
2.6 2.69 57.7 -- 0.158 -- -- --

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
MIR 2.6 20.0 -- 3.0 -- 26500 1342 82.6 -- 0.198 0.198 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 2.6 2.66 -- 56 917 0.316 0.431 0.058 46.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 52.1
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.0
x_scbond_it 2.6
x_mcangle_it 2.0
x_mcbond_it 2.6
x_improper_angle_d 1.71
x_bond_d 0.016
x_angle_deg 1.78
x_dihedral_angle_d 21.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.32
Luzzati Sigma A (Observed) 0.42
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.44
Luzzati Sigma A (R-Free Set) 0.61
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4850
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 66

Software

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