X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Temperature 293.0
Details 0.2M AMMONIUM SULFATE, 20-25% (W/V) PEG 4000, 0.1M SODIUM ACETATE PH4.6, 20MG/ML PROTEIN 20 DEGREES C, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.59 α = 90
b = 64.87 β = 90
c = 49 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- SIEMENS -- 1992-02-01
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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 39.1 88.0 0.083 -- -- 6.0 -- 8003 -- 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 8.0 -- 0.0 -- 7694 -- -- -- 0.179 0.179 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 20.08
RMS Deviations
Key Refinement Restraint Deviation
x_mcbond_it 1.5
x_scangle_it 2.0
x_dihedral_angle_d 22.95
x_angle_deg 1.52
x_bond_d 0.009
x_scbond_it 1.5
x_mcangle_it 2.0
x_improper_angle_d 1.32
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.19
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 995
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 73

Software

Software
Software Name Purpose
XENGEN data collection
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
XENGEN data reduction
X-PLOR phasing version: 3.1