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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2008 Sep 5;20(2):198–212. doi: 10.1016/j.jasms.2008.08.017

Figure 5.

Figure 5

Identification of overlapping ornithine (OL 3–OH 20:1/19:1) and glutamine (QL 3–OH 20:1/18:1) lipids at m/z 719 by positive ion ESI CID-MS/MS and −MSn. (A) MS/MS of m/z 719 from the wild type membrane lipid extract in Figure 1A, (B) MS/MS of m/z 719 from the GPCho-deficient mutant membrane extract in Figure 2B. (C) MS3 of m/z 701 from panel B.