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