X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.5
Details 1.4 MG ENZYME IN 0.1 ML ACETATE BUFFER (0.05M) PLUS 0.0001 ML PRECIPITATING AGENT (SODIUM SULPHATE 1M), pH 5.50

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 52.19 α = 90
b = 58.22 β = 90
c = 75.77 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 277
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1995-07-14
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON LURE BEAMLINE DW32 -- LURE DW32

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
2.2 17.7 93.9 0.051 -- -- 4.1 -- 44217 -- 4.0 --
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)
2.2 2.3 64.0 0.146 -- -- 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
-- 2.2 17.7 -- 2.0 10937 -- 896 95.0 0.173 0.162 -- 0.201 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_bond_d 0.02
s_angle_d 0.04
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1822
Nucleic Acid Atoms 0
Heterogen Atoms 7
Solvent Atoms 128

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
SHELXL-97 refinement
CCP4 data scaling version: (SCALA)