7Q48

Solution structure of an intramolecular RNA G-quadruplex formed by the 6A8U17U mutant from a 22mer guanine-rich sequence within the 5'UTR of BCL-2 proto onco-gene

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	1.0 mM BCL-2 6A8U17U	90% H2O/10% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
2	2D 1H-1H NOESY	1.0 mM BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
3	2D 1H-1H TOCSY	1.0 mM BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
4	2D 1H-13C HSQC	1.0 mM BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
5	2D 1H-15N HSQC	0.5 mM G & U 15N-labeled BCL-2 6A8U17U	90% H2O/10% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
6	JR-HMBC	1.0 mM BCL-2 6A8U17U	90% H2O/10% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
7	H8N2 HNN-COSY	0.5 mM G & U 15N-labeled BCL-2 6A8U17U	90% H2O/10% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
8	H1N2 HNN-COSY	0.5 mM G & U 15N-labeled BCL-2 6A8U17U	90% H2O/10% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
9	H1pC6/8 HMBC	1.0 mM BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
10	long-range 1H-15N HSQC	0.5 mM G & U 15N-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
11	long-range 1H-15N HSQC	0.5 mM A & C 15N-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
12	constant-time 1H-13C HSQC	0.5 mM A 13C, 15N-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
13	constant-time 1H-13C HSQC	0.3 mM C 13C, 15N-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700
14	constant-time 1H-13C HSQC	0.3 mM G 13C-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 600
15	constant-time 1H-13C HSQC	0.5 mM U 13C, 15N-labeled BCL-2 6A8U17U	100% D2O	2 mM	7.0	1 atm	298	Bruker AVANCE 700

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	700

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin	4.0.6	Bruker Biospin
2	chemical shift assignment	NMRFAM-SPARKY	1.414	Lee W, Tonelli M, Markley JL
3	peak picking	NMRFAM-SPARKY	1.414	Lee W, Tonelli M, Markley JL
4	structure calculation	X-PLOR NIH	3.0	Schwieters, Kuszewski, Tjandra and Clore
5	refinement	X-PLOR NIH	3.0	Schwieters, Kuszewski, Tjandra and Clore

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.