X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details CRYSTALS GREW FROM 4 MICROLITRE HANGING DROPS FORMED BY MIXING 2 MICROLITERS OF PROTEIN AT A CONCENTRATION OF 5MG/ML WITH 2 MICROLITERS OF RESERVOIR SOLUTION CONTAINING 15-20% (W/V) PEG 8000, 0.4 M AMMONIUM SULPHATE AND 0.1M HEPES AT PH 7.5.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 75.3 α = 90
b = 75.3 β = 90
c = 101.78 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CCD TOROIDAL 2000-10-15
Diffraction Radiation
Monochromator Protocol
DIAMON 100/GE 220 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON ESRF BEAMLINE ID14-2 -- ESRF ID14-2

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
1.8 30 94.9 0.051 -- -- 2.3 -- 29910 -- -3.0 --
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)
1.8 1.83 71.5 0.227 -- 1.5 2.0 --

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 1.8 25.24 -- -- -- 29892 1506 94.95 -- 0.15576 0.15449 0.18015 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 17.342
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1850
Nucleic Acid Atoms 0
Heterogen Atoms 55
Solvent Atoms 388

Software

Software
Software Name Purpose
REFMAC refinement
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing