Experiment: 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)

Additional NMR Experimental Information
Details	"In this structure the 5' triphosphate moiety is not included, due to the lack of structural information that can be gathered by NMR, leaving a 5'-hydroxyl end.

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