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. Author manuscript; available in PMC: 2011 Jul 14.
Published in final edited form as: Amino Acids. 2010 Jul 23;41(2):321–328. doi: 10.1007/s00726-010-0692-2

Fig. 3.

Fig. 3

Linear ion trap ETD spectrum of m/z 806.3813 (3+) acquired during the analysis of the partially deglycosylated mixture. The corresponding structure was identified as 159IALPT(GalNAc) QDPATHGGAS(GalNAc)SKASSD179 of insulin-like growth factor 2. Asterisks indicate c – 1• and z + 1 ions. The ion at m/z 1610 is the charge-reduced ion for a 2+ ion within the precursor selection window