2K1W

NMR solution structure of M-crystallin in calcium loaded form(holo).

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
2	2D 1H-13C HSQC	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
3	2D 1H-1H COSY	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
4	3D CBCA(CO)NH	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
5	3D HNCACB	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
6	3D HNCO	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
7	(3,2)D HNHA	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
8	(3,2)D HNHB	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
9	3D 1H-13C NOESY	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298
10	3D 1H-15N NOESY	1.0-1.2 mM [U-99% 13C; U-99% 15N] M crystallin, 10 mM TRIS, 5-7 mM calcium	90% H2O/10% D2O		7.5	ambient	298

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

NMR Refinement
Method	Details	Software
torsion angle dynamics, simulated annealing		CYANA

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	400
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Additional NMR Experimental Information
Details	The structure was determined using a combination of NOE, dihedral constrains and 3J(HNHa) coupling data.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
2	refinement	CYANA	3.0	Guntert, Mumenthaler and Wuthrich