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SOLUTION NMR STRUCTURE OF EOTAXIN, MINIMIZED AVERAGE STRUCTURE
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
DQF-COSY
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
2
NOESY
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
3
TOCSY
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
4
RPESY
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
5
13C-HSQC
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
6
13C-EDITED HMQC-NOESY
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
7
15N-NOESY HSQC
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
8
15N TOCSY HSQC
90% H2O/10% H2O OR 100% D2O. BUFFER ALSO CONTAINED 1MM DSS AND 1MM SODIUM AZIDE.
20mM SODIUM ACETATE
5.00
1 atm
303
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITY 600
500
2
Varian
INOVA 500
600
NMR Refinement
Method
Details
Software
simulated annealing
STRUCTURES WERE REFINED WITH MULTIPLE ROUNDS OF SIMULATED ANNEALING WITH THE ADDITION OF NEW NOES AND CORRECTION OF UNAMBIGUOUS NOES. PHI ANGLES WERE ONLY ADDED WHEN THEY AGREED WITH THE PURELY NOE DRIVEN CONVERGENCE OF THAT ANGLE IN INITIAL STRUCTURE CALCULATIONS. OTHER REFINEMENT INFORMATION CAN BE FOUND IN THE JRNL CITATION ABOVE.
X-PLOR
NMR Ensemble Information
Conformer Selection Criteria
STRUCTURES WERE SELECTED WITH NO VIOLATIONS > 0.3 A OR DIHEDRAL ANGLES > 0.5 A AND GOOD COVALENT GEOMETRY.
Conformers Calculated Total Number
40
Conformers Submitted Total Number
1
Additional NMR Experimental Information
Details
RESONANCE ASSIGNMENTS WERE ACHIEVED USING STANDARD TWO- AND THREE-DIMENSIONAL SEQUENTIAL ASSIGNMENT TECHNIQUES. NMR RESTRAINTS WERE EXTRACTED FROM 50, 75 AND 150 MS NOESY EXPERIMENTS. COUPLING CONSTANTS WERE CALCULATED FROM AN HNHA EXPERIMENT WITH UNIFORMLY LABELLED EOTAXIN.