9BHN

Solution NMR structure of halichondamide A, a fused bicyclic cysteine knot undecapeptide from the marine sponge Halichondria bowerbanki

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H ROESY	10 g/L halichondamide A	DMSO	0	7.4	1 atm	298.15	Bruker AVANCE III HD 700
2	2D 1H-1H TOCSY	10 g/L halichondamide A	DMSO	0	7.4	1 atm	298.15	Bruker AVANCE III HD 700
3	2D 1H-13C HSQC	10 g/L halichondamide A	DMSO	0	7.4	1 atm	298.15	Bruker AVANCE III HD 700
4	2D 1H-15N HSQC	10 g/L halichondamide A	DMSO	0	7.4	1 atm	298.15	Bruker AVANCE III HD 700

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III HD	700

NMR Refinement
Method	Details	Software
matrix relaxation		CYANA

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	10
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	chemical shift assignment	Sparky		Goddard
2	structure calculation	CYANA		Guntert, Mumenthaler and Wuthrich
3	refinement	Rosetta		Baker

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.