2KDE

NMR structure of major S5a (196-306):K48 linked diubiquitin species

SOLUTION NMR

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NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	3D 1H-15N NOESY	0.4 mM [U-100% 15N; U-50% 2H] S5a (196-306)-1, 1.2 mM K48 linked diubiquitin-2	90% H2O/10% D2O	20 mM NaPO4; 100 mM NaCl	6.5	ambient	298
2	3D 1H-13C NOESY	0.5 mM [U-100% 13C] S5a (196-306)-3, 1.5 mM K48 linked diubiquitin-4	100% D2O	20 mM NaPO4; 50 mM NaCl	6.5	ambient	298
3	3D 13C-filtered 1H-13C NOESY	0.5 mM [U-100% 13C of the proximal Ub; natural abundance of the distal subunit] K48 linked diubiquitin-5, 1.0 mM S5a (196-306)-6	100% D2O	20 mM NaPO4; 50 mM NaCl	6.5	ambient	298
4	3D 13C-filtered 1H-13C NOESY	0.5 mM [U-100% 13C of the distal subunit; natural abundance of the proximal Ub] K48 linked diubiquitin-7, 1.0 mM S5a (196-306)-8	100% D2O	20 mM NaPO4; 50 mM NaCl	6.5	ambient	298
5	3D 13C-filtered 1H-13C NOESY	0.4 mM [U-100% 13C] S5a (196-306)-9, 1.2 mM [U-100% 2H of the proximal Ub; natural abundance of the distal subunit] ] K48 linked diubiquitin-10	100% D2O	20 mM NaPO4; 50 mM NaCl	6.5	ambient	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Varian	INOVA	800
2	Varian	INOVA	900

NMR Refinement
Method	Details	Software
simulated annealing		XEASY

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	30
Conformers Submitted Total Number	7
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	data analysis	XEASY		Bartels et al.
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	structure solution	X-PLOR		Brunger
4	refinement	X-PLOR		Brunger