2KB7

Hybrid solution and solid-state NMR structure of monomeric phospholamban in lipid bilayers

SOLUTION NMR - SOLID-STATE NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D 1H-15N HSQC	1.5 mM [U-99% 15N] and [U-99% 13C; U-99% 15N] Phospholamban	90% H2O/10% D2O		6.0	ambient
2	3D H(CCO)NH	1.5 mM [U-99% 15N] and [U-99% 13C; U-99% 15N] Phospholamban	90% H2O/10% D2O		6.0	ambient
3	3D C(CO)NH	1.5 mM [U-99% 15N] and [U-99% 13C; U-99% 15N] Phospholamban	90% H2O/10% D2O		6.0	ambient
4	3D 1H-15N NOESY	1.5 mM [U-99% 15N] and [U-99% 13C; U-99% 15N] Phospholamban	90% H2O/10% D2O		6.0	ambient
5	2D [1H,15N] PISEMA	160/1 lipid/protein (mol/mol) [U-99% 15N] and [15N-Ala] and [15N-Arg] and [15N-Asn] and [15N-Ile] and [15N-Met] and [15N-Leu] and [15N-Phe] and [15N-Val] and [15N-Ser] and [15N-Gln26,Gln29] Phospholamban	100% H2O
6	2D [1H,15N]SAMPI4	160/1 lipid/protein (mol/mol) [U-99% 15N] and [15N-Ala] and [15N-Arg] and [15N-Asn] and [15N-Ile] and [15N-Met] and [15N-Leu] and [15N-Phe] and [15N-Val] and [15N-Ser] and [15N-Gln26,Gln29] Phospholamban	100% H2O

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	VNMRS	600
2	Varian	VNMRS	700
3	Bruker	DMX	600

NMR Refinement
Method	Details	Software
simulated annealing	Authors state that they define the z-axis to be parallel with the bilayer normal. Also, the origin (or in other words, when the z Cartesian coordinate is 0) is defined to be the center of the lipid bilayer.	X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the least restraint violations
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (fewest violations)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	X-PLOR NIH	2.18	Schwieters, C. et al.
2	data analysis	X-PLOR NIH	2.18	Schwieters, C. et al.
3	structure solution	X-PLOR NIH	2.18	Schwieters, C. et al.