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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

Table 1.

Summary of the ornithine (OL) and glutamine (QL) lipid species extracted from the cell membranes of wild type and GPCho deficient R. sphaeroidesa

[M+H]+
m/z		 [M−H]−
m/z		 Ornithine Lipids
(OL)
(wild type)		 Ornithine Lipids
(OL)
(GPCho deficient)		 Glutamine Lipids
(QL)
(wild type)		 Glutamine Lipids
(QL)
(GPCho deficient)
677 675 OL 3-OH 18:1/18:1
OL 3-OH 20:1/16:1
OL 3-OH 16:0/20:2
691 689 OL 3-OH 18:1/19:1 OL 3-OH 18:1/19:1
693 691 OL 3-OH 18:0/19:1 OL 3-OH 18:0/19:1 QL 3-OH 20:1/16:0
QL 3-OH 18:0/18:1
703 701 OL 3-OH 18:1/20:2
OL 3-OH 18:0/20:3		 OL 3-OH 18:1/20:2
OL 3-OH 18:0/20:3
705 703 OL 3-OH 18:0/20:2
OL 3-OH 20:1/18:1		 OL 3-OH 18:0/20:2
OL 3-OH 20:1/18:1
707 705 OL 3-OH 20:0/18:1
OL 3-OH 20:1/18:0		 OL 3-OH 20:0/18:1
OL 3-OH 20:1/18:0
719 717 OL 3-OH 20:1/19:1 OL 3-OH 20:1/19:1 QL 3-OH 20:1/18:1 QL 3-OH 20:1/18:1
721 719 OL 3-OH 20:0/19:1 OL 3-OH 20:0/19:1 QL 3-OH 20:0/18:1 QL 3-OH 20:0/18:1
731 729 OL 3-OH 20:1/20:2
OL 3-OH 20:0/20:3		 OL 3-OH 20:1/20:2
733 731 OL 3-OH 20:0/20:2 QL 3-OH 20:1/19:1
747 745 OL 3-OH 20:1/21:1 OL 3-OH 20:1/21:1
749 747 OL 3-OH 20:0/21:1 OL 3-OH 20:0/21:1
a

Only those ions with normalized relative abundances > 1% in the MS spectra were examined.