Exercise SQ1: Answers

The correct tag in Mascot notation is

738.25 tag(464.19, DV[Q|K][Q|K][I|L], 1047.40)

For MS-Seq, you need to enter the tag as

[IL][QK][QK]VD

Getting it the right way round requires trial and error, as does the choice of ion series. The m/z values are entered as

738.25 2
464.19 1
1047.40 1