X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Details PROTEIN WAS DESIALATED WITH NEURAMINIDASE (8 HR AT 37 DEGREES IN 100 MM SODIUM ACETATE, PH 6.5, 10 MG/ML PROTEIN, 0.1 ENZYME UNIT/ML), DIALYZED AGAINST 10 MM TRIS, 25 MM NACL (PH 6.0), AND PASSED THROUGH MONO-Q COLUMN. DESIALATED MATERIAL WAS CRYSTALLIZED BY HANGING DROP METHODS: 17 MG/ML PROTEIN IN BUFFER: 10 MM TRIS,25 MM NACL,1 MM MGCL2,1 MM CACL2, WAS PRECIPITATED FROM 24-27% PEG 3350 IN SAME BUFFER.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 54.07 α = 90
b = 54.07 β = 90
c = 145.77 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- --
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
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
2.82 26.58 72.1 -- -- -- -- -- 4634 -- -- --
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)
2.82 2.94 21.8 -- -- -- -- --

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 3.25 15.0 -- 0.0 -- 3841 -- 91.8 -- -- 0.371 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 41.89
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 185
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 0

Software

Computing
Computing Package Purpose
AMORE Structure Solution
Software
Software Name Purpose
AMORE model building