2NCS

NMR assignment and structure of a peptide derived from the membrane proximal external region of HIV-1 gp41 in the presence of dodecylphosphocholine micelles

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-1H TOCSY	0.5 mM 10E8p, 20 mM [U-2H] DPC, 2 mM HEPES, 0.1 mM DSS	90% H2O/10% D2O	2	7	ambient	308
2	2D 1H-1H NOESY	0.5 mM 10E8p, 20 mM [U-2H] DPC, 2 mM HEPES, 0.1 mM DSS	90% H2O/10% D2O	2	7	ambient	308
3	2D 1H-1H TOCSY	0.5 mM 10E8p, 20 mM [U-2H] DPC, 2 mM HEPES, 0.1 mM DSS	100% D2O	2	7	ambient	308
4	2D 1H-1H NOESY	0.5 mM 10E8p, 20 mM [U-2H] DPC, 2 mM HEPES, 0.1 mM DSS	100% D2O	2	7	ambient	308
5	2D 1H-13C HSQC aliphatic	0.5 mM 10E8p, 20 mM [U-2H] DPC, 2 mM HEPES, 0.1 mM DSS	100% D2O	2	7	ambient	308

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE	600
2	Bruker	AVANCE	800

NMR Refinement
Method	Details	Software
simulated annealing		TopSpin

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	TopSpin		Bruker Biospin
3	chemical shift assignment	Sparky		Goddard
4	dihedral angle restraints	TALOS		Cornilescu, Delaglio and Bax
5	structure solution	CYANA		Guntert, Mumenthaler and Wuthrich
6	refinement	CYANA