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(e) How could the sequence of Ala-Met-Thr be distinguished from that of Thr-Ala-Met by tandem ESI-MS? Explain in detail. (f) Draw the structures of

(e) How could the sequence of Ala-Met-Thr be distinguished from that of Thr-Ala-Met by tandem ESI-MS? Explain in detail. (f) Draw the structures of products from a trypsin-catalysed reaction of Ala-Lys-Ser.

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