Experiment: 2DJM

Solution structure of N-terminal starch-binding domain of glucoamylase from Rhizopus oryzae

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TOCSY	1mM SBD (unlabel); 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298
2	2D NOESY	1mM SBD (unlabel); 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298
3	DQF-COSY	1mM SBD (unlabel); 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298
4	3D_N15_HSQC_TOCSY	N15 label 1mM SBD; 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298
5	3D_N15_HSQC_NOESY	N15 label 1mM SBD; 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298
6	CBCA(CO)NH; HNCACB	N15,C13 double label 1mM SBD; 10mM sodium acttate pH4.5; 10% D2O, 90% H2O	10% D2O; 90% H2O	10mM sodium acetate	4.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	800
2	Bruker	AVANCE	600

NMR Refinement
Method	Details	Software
torsion angle dynamics, distance geometry, simulated annealing, water refine	the structures are based on a total of 2414 restraints, 2238 are NOE-derived distance constraints, 102 dihedral angle restraints,74 distance restraints from hydrogen bonds.	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	15
Representative Model	1 (closest to the average)

Additional NMR Experimental Information
Details	The structure was determined using both 2D homonuclear and triple-resonance NMR spectroscopy.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	3.5	Bruker
2	processing	TopSpin	1.3	Bruker
3	data analysis	Sparky	3.111	Goddard, T.D., Kneller, D.G.
4	structure solution	CNS	1.1
5	refinement	ARIA	2.0	Nilges, M., O'Donoghue, S.I.