7AAO

Structural evolution of the tissue-specific U2AF2 paralog and alternative splicing factor LS2

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-13C HSQC aromatic	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 500
2	2D 1H-13C HSQC aliphatic	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 700
3	2D 1H-15N HSQC	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 700
4	3D 1H-15N NOESY	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 800
5	3D 1H-13C NOESY aliphatic	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 800
9	3D 1H-13C NOESY aromatic	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 500
8	3D HNCACB	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 600
7	3D HNCA	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 600
6	3D CBCA(CO)NH	1.0 mM [U-13C; U-15N] LS2 Linker RRM2, 0.02 mM [U-13C; U-15N] potassium phosphate, 0.05 mM [U-13C; U-15N] sodium chloride, 0.002 mM [U-13C; U-15N] DTT	90% H2O/10% D2O	0.07 mM	6.5	1 atm	298	Bruker AVANCE 600

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	500
2	Bruker	AVANCE	600
4	Bruker	AVANCE	700
3	Bruker	AVANCE	800
5	Bruker	AVANCE	900

NMR Refinement
Method	Details	Software
simulated annealing		CNS

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	40
Conformers Submitted Total Number	10
Representative Model	1 (medoid)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	CNS		Brunger A. T. et.al.
2	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	Sparky		Goddard
4	peak picking	Sparky		Goddard

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.