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Crystal structure of the C123S 2-methylisocitrate lyase mutant from Escherichia coli in complex with the reaction product, Mg(II)-pyruvate and succinate
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s)
Type
Source
Accession Code
Details
experimental model
Other
structure of the C123S mutant enzyme in complex with isocitrate
Crystallization
Crystalization Experiments
ID
Method
pH
Temperature
Details
1
VAPOR DIFFUSION, HANGING DROP
6
298
30% PEG3350, 0.1M (NH)2SO4, 0.1M MES (pH6.0). 5mM Mg(II), 5mM isocitrate, followed by overnight soaking of a crystal in 35% PEG3350, 100 mM succinate, 100 mM pyruvate, 5mM Mg(II), VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Crystal Properties
Matthews coefficient
Solvent content
2.53
51.44
Crystal Data
Unit Cell
Length ( Å )
Angle ( ˚ )
a = 159.358
α = 90
b = 85.993
β = 108.28
c = 99.597
γ = 90
Symmetry
Space Group
C 1 2 1
Diffraction
Diffraction Experiment
ID #
Crystal ID
Scattering Type
Data Collection Temperature
Detector
Detector Type
Details
Collection Date
Monochromator
Protocol
1
1
x-ray
100
IMAGE PLATE
RIGAKU RAXIS IV
focusing mirrors (MSC/Yale)
2004-01-18
M
SINGLE WAVELENGTH
Radiation Source
ID #
Source
Type
Wavelength List
Synchrotron Site
Beamline
1
ROTATING ANODE
RIGAKU RU300
1.5418
Data Collection
Overall
ID #
Resolution (High)
Resolution (Low)
Percent Possible (Observed)
R Merge 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
1.9
25.85
88.5
0.025
20.3
2.82
100609
89039
1
Highest Resolution Shell
ID #
Resolution (High)
Resolution (Low)
Percent Possible (All)
Percent Possible (Observed)
R Merge I (Observed)
Mean I Over Sigma (Observed)
Redundancy
Number Unique Reflections (All)
1.9
1.97
67.5
0.084
Refinement
Statistics
Diffraction ID
Structure Solution Method
Cross Validation method
Starting model
Resolution (High)
Resolution (Low)
Cut-off Sigma (F)
Number Reflections (All)
Number Reflections (Observed)
Number Reflections (R-Free)
Percent Reflections (Observed)
R-Work (Depositor)
R-Work (DCC)
R-Free (Depositor)
R-Free (DCC)
R-Free Selection Details
Mean Isotropic B
X-RAY DIFFRACTION
FOURIER SYNTHESIS
throught
structure of the C123S mutant enzyme in complex with isocitrate