6HPJ

Structure of human SRSF1 RRM1 bound to AACAAA RNA

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	0.5 mM [U-99% 15N] SRSF1 RRM1, 0.5 mM RNA (5'-R(*AP*AP*CP*AP*AP*A)-3')	100% D2O	120 mM	7	atmospheric atm	313	b 900 AVIII 900
2	3D 1H-15N NOESY	0.5 mM [U-99% 15N] SRSF1 RRM1, 0.5 mM NA RNA (5'-R(*AP*AP*CP*AP*AP*A)-3')	90% H2O/10% D2O	120 mM	7	atmospheric atm	313	Bruker 700 AVIII 700
3	2D 1H-13C HSQC aliphatic	0.5 mM [U-99% 13C; U-99% 15N] SRSF1 RRM1, 0.5 mM NA RNA (5'-R(*AP*AP*CP*AP*AP*A)-3')	90% H2O/10% D2O	120 mM	7	atmospheric atm	313	Bruker 700 AVIII 700
4	2D 1H-13C HSQC aromatic	0.5 mM [U-99% 13C; U-99% 15N] SRSF1 RRM1, 0.5 mM NA RNA (5'-R(*AP*AP*CP*AP*AP*A)-3')	90% H2O/10% D2O	120 mM	7	atmospheric atm	313	Bruker 700 AVIII 700

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

NMR Refinement
Method	Details	Software
simulated annealing		Amber

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

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	Amber		Case, Darden, Cheatham III, Simmerling, Wang, Duke, Luo, ... and Kollman
2	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich
3	chemical shift assignment	Sparky		Goddard
4	peak picking	CANDID		Herrmann, Guntert and Wuthrich