2M3J

Solution Structure of Marine Sponge-Derived Asteropsin E Which is Highly Resistant to Gastrointestinal Proteases

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H NOESY	10 mg/mL Asteropsin E	methanol		7.0	ambient	298
2	2D 1H-1H TOCSY	10 mg/mL Asteropsin E	methanol		7.0	ambient	298
3	2D DQF-COSY	10 mg/mL Asteropsin E	methanol		7.0	ambient	298
4	2D 1H-13C HSQC	10 mg/mL Asteropsin E	methanol		7.0	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	BioSpin GmbH	900

NMR Refinement
Method	Details	Software
simulated annealing		CNS

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	structure solution	CNS	1.3	Brunger, Adams, Clore, Gros, Nilges and Read
2	refinement	CYANA	2.0	Guntert, Mumenthaler and Wuthrich
3	data analysis	Sparky		Goddard
4	refinement	CNS		Brunger, Adams, Clore, Gros, Nilges and Read

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 R01GM157729.