2N4L

Solution Structure of the HIV-1 Intron Splicing Silencer and its Interactions with the UP1 Domain of hnRNP A1

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	80-120 uM [U-2H] ISS (53-MER)	100% D2O	10	6.5	ambient	298
2	2D 1H-1H TOCSY	80-120 uM [U-2H] ISS (53-MER)	100% D2O	10	6.5	ambient	298
3	2D 1H-13C HMQC	80-120 uM [U-100% 13C] ISS (53-MER)	100% D2O	10	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	900
2	Bruker	AVANCE	800
3	Bruker	AVANCE	500

NMR Refinement
Method	Details	Software
molecular dynamics		NMRDraw

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	256
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	processing	NMRDraw		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
4	collection	TopSpin		Bruker Biospin
5	refinement	Amber		Case, Darden, Cheatham, III, Simmerling, Wang, Duke, Luo, and Kollman

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.