2LP7

Structure of gp41-M-MAT, a membrane associated MPER trimer from HIV-1 gp41.

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	50 mM sodium phosphate, 100 mM [U-99% 2H] DPC	90% H2O/10% D2O		6.0	ambient	30
2	3D HNCA	50 mM sodium phosphate, 100 mM [U-99% 2H] DPC	90% H2O/10% D2O		6.0	ambient	30
3	3D HNCACB	50 mM sodium phosphate, 100 mM [U-99% 2H] DPC	90% H2O/10% D2O		6.0	ambient	30
4	3D HN(CO)CA	50 mM sodium phosphate, 100 mM [U-99% 2H] DPC	90% H2O/10% D2O		6.0	ambient	30
5	3D 1H-15N NOESY	50 mM sodium phosphate, 100 mM [U-99% 2H] DPC	90% H2O/10% D2O		6.0	ambient	30

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	800
2	Varian	INOVA	600
3	Bruker	AVANCE	950

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	400
Conformers Submitted Total Number	11
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	structure solution	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
2	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore