1XFE

Solution structure of the LA7-EGFA pair from the LDL receptor

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D_15N-separated NOESY, TOCSY	1.5 mM LA7-EGFA U-15N 10 mM CaCl2; 90% H2O, 10% D2O	90% H2O/10% D2O	1:6 molar protein/CaCl2	6.5	ambient	298
2	HNHA, HNHB	1.5 mM LA7-EGFA U-15N 10 mM CaCl2; 90% H2O, 10% D2O	90% H2O/10% D2O	1:6 molar protein/CaCl2	6.5	ambient	298
3	2D_NOESY, 2D_TOCSY	1 mM LA7-EGFA 6 mM CaCl2; 90% H2O, 10% D2O	90% H2O/10% D2O	1:6 molar protein/CaCl2	6.5	ambient	298
4	13C_HSQC	0.6 mMM LA7-EGFA U-15N, 10% 13C 4 mM CaCl2; 99% D2O	99% D2O	1:6 molar protein/CaCl2	6.5	ambient	298
5	HNCA, HNCOCA, HNCO, HNCACB	0.3 mM LA7-EGFA U-15N,13C 2 mM CaCl2; 90% H2O, 10% D2O	90% H2O/10% D2O	1:6 molar protein/CaCl2	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AMX	600
2	Bruker	AMX	500

NMR Refinement
Method	Details	Software
distance geometry simulated annealing	structures are based on 1564 NOE-derived constraints, 119 dihedral angle restraints, 14 distance restraints for hydrogen bonds, and 55 RDC constraints.	CNS_solve

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	43
Conformers Submitted Total Number	15
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	CNS_solve	1.1	Brunger
2	processing	Gifa	4.3	Pons et al
3	data analysis	XEASY	1.2	Bartels et al
4	refinement	CNS_solve	1.1	Brunger