2LEA

Solution structure of human SRSF2 (SC35) RRM

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	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
2	2D 1H-13C HSQC	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
3	2D 1H-1H TOCSY	0.75 mM [U-15N] SRSF2 RRM 1	100% D2O	120	5.5	ambient	310.8
4	3D HCACO	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
5	3D HNCO	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
6	3D HNCA	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
7	3D HN(CO)CA	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
8	3D CBCA(CO)NH	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
9	3D HNCACB	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
10	3D H(CCO)NH	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
11	3D HCCH-TOCSY	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
12	3D 1H-13C NOESY	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
13	3D 1H-15N NOESY	0.75 mM [U-15N] SRSF2 RRM 1, 0.75 mM [U-13C; U-15N] SRSF2 RRM 2	90% H2O/10% D2O	120	5.5	ambient	310.8
14	2D 1H-1H NOESY	0.75 mM [U-15N] SRSF2 RRM 1	100% D2O	120	5.5	ambient	310.8

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Bruker	AVANCE	600
3	Bruker	AVANCE	700
4	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
simulated annealing		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	50
Conformers Submitted Total Number	20
Representative Model	1 (closest to the average)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CYANA	3.0	Guntert, Mumenthaler and Wuthrich
2	refinement	Amber	9	Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollm
3	chemical shift assignment	Sparky		Goddard