Figure 2
From: NADPH diaphorase detects S-nitrosylated proteins in aldehyde-treated biological tissues

modified by the addition of an NO group.
Tandem mass spectrometry results of either NBT (747 m/z, black) or SNO-NBT (808 m/z, grey). Striking differences can be seen in the range of 220 to 280 m/z which correspond to fragments of NBT which have been