1HZ8 | pdb_00001hz8

SOLUTION STRUCTURE AND BACKBONE DYNAMICS OF A CONCATEMER OF EGF-HOMOLOGY MODULES OF THE HUMAN LOW DENSITY LIPOPROTEIN RECEPTOR

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	HNHA	1.5mM EGF-A, 20mM CaCl2	95% H2O/5% D2O	0.060	5.5	ambient	310
2	2D NOESY	1mM 15N-EGF-AB, 20mM CaCl2	95% H2O/5% D2O	0.060	5.5	ambient	310
3	2D NOESY	1.5mM EGF-A, 20mM CaCl2	99% D2O	0.060	5.5	ambient	310
4	2D NOESY	1mM EGF-AB, 20mM CaCl2	95% H2O/5% D2O	0.060	5.5	ambient	283
5	DQF-COSY	1mM EGF-AB, 20mM CaCl2	95% H2O/5% D2O	0.060	5.5	ambient	283
6	3D_15N-separated_NOESY	1.5mM EGF-A, 20mM CaCl2	95% H2O/5% D2O	0.060	5.5	ambient	295

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	DMX	750

NMR Refinement
Method	Details	Software
1. Torsion angles dynamics 2. Restrained molecular dynamics with calcium 3. Energy minimisation	The structures are based on: 874 NOE restraints, 64 phi dihedral angles, 14 chi1 dihedral angles, 14 hydrogen bonds, 9 calcium ion ligand restraints	XwinNMR

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	100
Conformers Submitted Total Number	30

Additional NMR Experimental Information
Details	15N T1,T2,and NOE relaxations to obtain backbone dynamics information T1/T2 data were not used for structure refinement

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	XwinNMR	2.6	Bruker
2	processing	Sparky	3.95	T. Goddard & D.G. Kneller
3	structure solution	DYANA	1.5	P. Guntert
4	refinement	X-PLOR	3.85	A. Brunger
5	data analysis	MOLMOL	2.6	R. Koradi

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.