2KQM

Solution structure of the KI O18/O8 Y87H immunoglobulin light chain variable domain

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	0.8 mM [U-100% 13C; U-100% 15N] kI O18/O8 Y87H-1, 10 mM [U-2H] MES-2, 0.02 % sodium azide-3, 95% H2O, 5% D2O	95% H2O/5% D2O	8	6.8	AMBIENT	298
2	3D_13C-separated_NOESY	0.8 mM [U-100% 13C; U-100% 15N] kI O18/O8 Y87H-1, 10 mM [U-2H] MES-2, 0.02 % sodium azide-3, 95% H2O, 5% D2O	95% H2O/5% D2O	8	6.8	AMBIENT	298
3	3D_13C-separated_NOESY (AROMATIC)	0.8 mM [U-100% 13C; U-100% 15N] kI O18/O8 Y87H-1, 10 mM [U-2H] MES-2, 0.02 % sodium azide-3, 95% H2O, 5% D2O	95% H2O/5% D2O	8	6.8	AMBIENT	298

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	Avance II	600

NMR Refinement
Method	Details	Software
AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT AND ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT	HOMODIMER STRUCTURES ARE BASED ON A TOTAL OF 2477 NOE CONSTRAINTS (410 INTRA, 489 SEQUENTIAL, 340 MEDIUM, 1214 INTRAMONOMER LONG RANGE AND 24 INTERMONOMER NOE CONSTRAINTS) AND 151 PHI AND PSI DIHEDRAL ANGLE CONSTRAINTS PER MONOMER. CONSTRAINTS WERE ASSIGNED AND VALIDATED IN ONE MONOMER AND THEN DUPLICATED TO GENERATE A SYMMETRY RELATED CONSTRAINTS IN THE SECOND MONOMER.	Xplor-NIH

NMR Ensemble Information
Conformer Selection Criteria	target function
Conformers Calculated Total Number	100
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	refinement	Xplor-NIH	2.9.3	SCHWIETERS,C.D.,KUSZEWSKI,J.J.,TJANDRA,N.,CLORE,G.M.
2	collection	TopSpin	2.1	Bruker
3	processing	nmrPipe	2007	Delagio,F. et al.
4	data analysis	XEASY	1.3	Eccles, C., Guntert, P., Billeter, M., Wuthrich, K.
5	data analysis	GARANT	2.1	C. Bartels
6	structural calculation	Cyana	2.1	Guntert, P.