2L4I

The Solution Structure of Magnesium bound CIB1

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D IPAP-HSQC	0.5 mM [U-13C; U-15N; U-2H] CIB1, 5 mM MAGNESIUM ION, 100 mM potassium chloride, 10 mM DTT	90% H2O/10% D2O	200	7.5	ambient	310
2	3D HNCO type IPAP	0.5 mM [U-13C; U-15N; U-2H] CIB1, 5 mM MAGNESIUM ION, 100 mM potassium chloride, 10 mM DTT	90% H2O/10% D2O	200	7.5	ambient	310
3	3D 1H-15N NOESY	0.5 mM I/L/V methyl labeled [U, 2H] CIB1, 5 mM MAGNESIUM ION, 100 mM potassium chloride, 10 mM DTT	90% H2O/10% D2O	200	7.5	ambient	310
4	3D 1H-13C NOESY	0.5 mM I/L/V methyl labeled [U, 2H] CIB1, 5 mM MAGNESIUM ION, 100 mM potassium chloride, 10 mM DTT	90% H2O/10% D2O	200	7.5	ambient	310

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Avance	700

NMR Refinement
Method	Details	Software
simulated annealing, torsion angle dynamics	Because the backbone resonances of residues 158-191 are largely missing, only residues 8-157 of Mg2+-CIB1 are presented in this entry. Simulated annealing was done in two steps, 1st step, 200k-20k; 2nd step, 20K-2K, refer to J Biomol NMR. 2000 Nov;18(3):217-27. (Chou and Bax)	X-PLOR_NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR_NIH	2.18	Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR_NIH	2.18	Schwieters, Kuszewski, Tjandra and Clore
3	data analysis	NMRView		Johnson, One Moon Scientific