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Solution structure of the N-terminal domain (M1-S98) of human centrin 2
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
2D NOESY
0.7-1.5 mM N-term Human centrin 2, 20mM Tris buffer;
93% H2O, 7% D2O,
100 mM NaCl
6.5
ambient
308
2
2D TOCSY
0.7-1.5 mM N-term Human centrin 2, 20mM Tris buffer;
93% H2O, 7% D2O,
100 mM NaCl
6.5
ambient
308
3
DQF-COSY
0.7-1.5 mM N-term Human centrin 2, 20mM Tris buffer;
93% H2O, 7% D2O,
100 mM NaCl
6.5
ambient
308
4
3D 15N NOESY-HSQC, TOCSY-HSQC
1 mM N-term Human centrin 2 U-15N; 20mM Tris buffer;
93% H2O 7% D2O,
100 mM NaCl
6.5
ambient
308
5
2D 15N HSQC
1 mM N-term Human centrin 2 U-15N; 20mM Tris buffer;
93% H2O 7% D2O,
100 mM NaCl
6.5
ambient
308
6
2D DQF-COSY, TOCSY, NOESY
1 mM N-term Human centrin 2, 20mM Tris buffer;
100% D2O,
100 mM NaCl
6.5
ambient
308
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Varian
UNITY
500
NMR Refinement
Method
Details
Software
molecular dynamics
The structures are based on a total of 1245 restraints, 1159 are NOE-derived
distance constraints, 50 dihedral angle restraints,36 distance restraints
from hydrogen bonds.
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NMR Ensemble Information
Conformer Selection Criteria
structures with acceptable covalent geometry,structures with the least restraint violations,structures with the lowest energy