X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.8
Details 50 % AMMONIUM SULFATE 100 MM MES BUFFER, PH 5.9 , pH 5.8

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 93.41 α = 90
b = 71.96 β = 90
c = 40.97 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MAC Science DIP-2030 DOUBLE MIRRORS (MAC-XOS) 1997-12-24
Diffraction Radiation
Monochromator Protocol
GRAPHITE SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- ENRAF-NONIUS FR591 -- -- --

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 50 97.6 -- 0.108 -- 2.7 -- 12688 -- 5.0 19.5
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 2.34 98.2 -- 0.363 2.1 2.5 --

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
OTHER 2.3 20.0 -- 0.0 -- 11923 1000 93.1 -- -- 0.226 0.272 RANDOM EXTENSION OF SET USED FOR 1BE0 MODEL
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 -- 125 1299 0.305 0.363 -- 90.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 16.2
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 5.55
x_scbond_it 4.1
x_mcangle_it 4.18
x_mcbond_it 2.83
x_improper_angle_d 1.2
x_bond_d 0.009
x_angle_deg 1.6
x_dihedral_angle_d 24.2
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2478
Nucleic Acid Atoms 0
Heterogen Atoms 3
Solvent Atoms 160

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
X-PLOR 3.843 Structure Refinement
Software
Software Name Purpose
X-PLOR version: 3.843 refinement