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1H NMR structure bundle of bovine Ca2+-osteocalcin
SOLUTION NMR
NMR Experiment
Experiment
Type
Sample Contents
Solvent
Ionic Strength
pH
Pressure
Temperature (K)
Spectrometer
1
COSY
20mM NaCl, 6mM Ca(Cl)2, 0.25mM DSS
10% 2H2O
38
6.9
1 atm
310
2
17 and 60 ms mixing time TOCSYs
20mM NaCl, 6mM Ca(Cl)2, 0.25mM DSS
10% 2H2O
38
6.9
1 atm
310
3
NOESY (150 ms)
20mM NaCl, 6mM Ca(Cl)2, 0.25mM DSS
10% 2H2O
38
6.9
1 atm
310
NMR Spectrometer Information
Spectrometer
Manufacturer
Model
Field Strength
1
Bruker
drx600
600
NMR Refinement
Method
Details
Software
torsion angle dynamics, simulated annealing and energy minimization
CNS
NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
Conformers Submitted Total Number
13
Representative Model
2 (lowest energy)
Additional NMR Experimental Information
Details
Since the 15 N-terminal residues are unstructured and
not constrained, only the structured region of the molecule
(residues 16-49) is included in the structure bundle.
All of the structures were solved in the presence of 6 mM CaCl2.