2A3D

SOLUTION STRUCTURE OF A DE NOVO DESIGNED SINGLE CHAIN THREE-HELIX BUNDLE (A3D)

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	TRIPLE RESONANCE	92% WATER/8% D2O AND 99.9% D2O		50 mM SODIUM ACETATE	5.0	1 atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	600
2	Varian	INOVA	750

NMR Refinement
Method	Details	Software
simulated annealing	REFINEMENT DETAILS CAN BE FOUND IN THE PNAS CITATION	X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	LEAST RESTRAINT VIOLATION
Conformers Calculated Total Number	60
Conformers Submitted Total Number	1

Additional NMR Experimental Information
Details	LOWEST ENERGY. THE STRUCTURE WAS DETERMINED USING TRIPLE- RESONANCE NMR SPECTROSCOPY ON 15N, 13C LABELED A3D

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	3.851	BRUNGER
2	structure solution	Felix

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.