1TIZ

Solution Structure of a Calmodulin-Like Calcium-Binding Domain from Arabidopsis thaliana

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_13C-separated_NOESY	5 mM DTT, 20 mM Bis-Tris, 5mM Ca2+, 1mM DSS, 0.02% NaN3, 1 mM protein	90% H2O/10% D2O		6.4	1 atm	298.2
2	3D_15N-separated_NOESY	5 mM DTT, 20 mM Bis-Tris, 5mM Ca2+, 1mM DSS, 0.02% NaN3, 1 mM protein	90% H2O/10% D2O		6.4	1 atm	298.2

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Bruker	DMX	500

NMR Refinement
Method	Details	Software
simulated annealing molecular dynamics torsion angle dynamics	The structure was first calculated using torsion angle dynamics, and later refined using simulated annealing and molecular dynamics	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	This structure was determined using standard 3D techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.2
2	processing	NMRPipe	2.1
3	data analysis	Sparky	3.72
4	structure solution	CYANA	1.0.5
5	refinement	XPLOR-NIH	2.0.6