2IGR

Solution structure of CB1a, a novel anticancer peptide derived from natural antimicrobial peptide cecropin B

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D NOESY	3mM CB1a peptide; 20% d-HFP; 95% H2O, 5% D2O	95% H2O/5% D2O		4.9	1 atm	303
2	2D TOCSY	3mM CB1a peptide; 20% d-HFP; 95% H2O, 5% D2O	95% H2O/5% D2O		4.9	1 atm	303
3	DQF-COSY	3mM CB1a peptide; 20% d-HFP; 95% H2O, 5% D2O	95% H2O/5% D2O		4.9	1 atm	303

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

NMR Refinement
Method	Details	Software
distance geometry, simulated annealing		X-PLOR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR	XPLOR-NIH 2.1.09	Brunger A. T. etall

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.