1H-15N TROSY of an 18 kDa protein (15N/13C/2H labeled) in complex with its receptor.

1H-15N TROSY of a 95 kDa complex of the 18 kDa protein (on left) with two other proteins (concentration ~ 150 uM; spectrum was recorded for 18 hours ).

Trosy of a 95 kDa complex