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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: J Mass Spectrom. 2016 Mar;51(3):219–235. doi: 10.1002/jms.3738

Figure 6.

Figure 6

(a) Negative ion CID spectrum ([M+H2PO4]− ion) of Man7GlcNAc2 (d1d1 isomer, 11, from porcine thyroglobulin). (b) Negative ion CID spectrum ([M+H2PO4]− 8, from gp120, (JRCSF)). Negative ion CID spectrum ([M+H PO ]− ion) of Man7GlcNAc2 (d1d2 isomer, ion) of Man7GlcNAc2 (d1d3 isomer, 10, from gp120). The inset to the first panel shows single ion plots of the 6-antenna-specific ions (smoothing algorithm, mean 2×2) showing the presence of the minor isomer 11. The spectrum in panel c was, thus, from the right-hand portion of the ATD peak.