Experiment: 1K5W

THREE-DIMENSIONAL STRUCTURE OF THE SYNAPTOTAGMIN 1 C2B-DOMAIN: SYNAPTOTAGMIN 1 AS A PHOSPHOLIPID BINDING MACHINE

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated_NOESY	0.0013M 15N, 13C C2B-Domain	50mM Mes 2mM DTT 20mM CaCl2 5%D2O	150mM NaCl	6.3	1 atm	303
2	HNHA	0.0013M 15N, 13C C2B-Domain	50mM Mes 2mM DTT 20mM CaCl2 5%D2O	150mM NaCl	6.3	1 atm	303
3	3D-13_15N-SEPARATED_NOESY	1.3mM 15N, C2B-Domain	50mM Mes 2mM DTT 20mM CaCl2 5%D2O	150mM NaCl	6.3	1 atm	303
4	1H/13C-HSQC	1mM 10% 13C, C2B-Domain	50mM Mes 2mM DTT 20mM CaCl2 5%D2O	150mM NaCl	6.3	1 atm	303
5	3D_15N-separated_NOESY	0.4mM 15N, C2B-Domain	50mM Mes 2mM DTT 0.5mM EDTA 5%D2O	150mM NaCl	6.3	1 atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	500
2	Varian	INOVA	600

NMR Refinement
Method	Details	Software
torsion angle dynamics	the structures are based on a total of 2888 unique, conformationally significant restraints, 2492 are NOE-derived distance constraints, 214 dihedral angle restraints, 170 distance restraints from hydrogen bonds.	NMRPipe

NMR Ensemble Information
Conformer Selection Criteria	STRUCTURES WITH THE MINIMUM NOE ENERGY
Conformers Calculated Total Number	500
Conformers Submitted Total Number	20
Representative Model	1 (structure with the minimum noe energy)

Additional NMR Experimental Information
Details	STRUCTURE WITH THE MINIMUM NOE ENERGY

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRPipe	1.8	DeLaglio et al.
2	collection	VNMR	6.1	Varian
3	data analysis	NMRView	4.12	Johnson, Blevins
4	refinement	CNS	0.9	Brunger et al.