X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.5
Temperature 289.0
Details 0.2M AMMONIUM SULFATE, 20-25% (W/V) PEG 4000, 0.1M SODIUM ACETATE PH4.5, 20MG/ML PROTEIN 16 DEGREES C, temperature 289K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 32.5 α = 90
b = 89.7 β = 94.5
c = 45.2 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- SIEMENS -- 1994-05-01
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
2.3 32.2 90.5 0.096 -- -- 2.6 -- 10415 -- 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 2.3 8.0 -- 0.0 -- 10138 1031 90.8 -- 0.195 0.195 0.27 --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 19.62
RMS Deviations
Key Refinement Restraint Deviation
x_scangle_it 2.0
x_scbond_it 1.5
x_mcangle_it 2.0
x_mcbond_it 1.5
x_improper_angle_d 1.41
x_bond_d 0.011
x_angle_deg 1.64
x_dihedral_angle_d 23.4
Coordinate Error
Parameter Value
Luzzati Sigma A (Observed) 0.3
Luzzati Resolution Cutoff (Low) 5.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1936
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 68

Software

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