1IN3

Peptide Antagonist of IGFBP1, (i,i+8) Covalently Restrained Analog

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D-ROESY	5 mM peptide	90% H2O/10% D2O	0	5.0	1 atm	303
2	DQF-COSY	5 mM peptide	90% H2O/10% D2O	0	5.0	1 atm	303
3	2D-ROESY	5 mM peptide	100% D2O	0	5.0	1 atm	303
4	COSY-35	5 mM peptide	100% D2O	0	5.0	1 atm	303

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Avance	500

NMR Refinement
Method	Details	Software
restrained molecular dynamics	The structure was detemined on the basis of 104 NOE distancerestraints and 11 dihedral angle restraints. The resulting ensemble had no restraint violations greater than 0.07 Angstroms or 1.4 deg. The mean restraint violation energy was 0.13+/- 0.04 kcal/mol.	FELIX

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	80
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations)

Additional NMR Experimental Information
Details	This structure was determined using standard 2D homonuclear techniques.

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	FELIX	970	msi
2	refinement	DGII	970	havel
3	refinement	DISCOVER	970	msi

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.