Table 1.

Composition of phospholipids extracted from C. neoformans cap67 cell wall preparations as identified by ESI-MS total-ion mapping

Phospholipid/Ionmode	Ionspecies	m/z	Proposed composition	Predicted mass (Da)
Phosphatidylethanolamine (PE)
(−)	[M−H]−	478.4	lyso C18:1	479.3
(−)	[M−H]−	476.4	lyso C18:2	477.3
(−)	[M + Cl]−	534.4
(−)	[M−H]−	716.6	C16:0/C18:1	717.5
(−)	[M + Cl]−	774.7
(−)	[M−H]−	714.7	C16:0/C18:2	715.5
(−)	[M−H]−	740.7	C18:1/C18:2	741.5
(−)	[M + Cl]−	798.6
(−)	[M + HCOO]−	808.6
(−)	[M−H]−	742.6	C18:1/C18:1	743.5
(−)	[M + Cl]−	800.6
(−)	[M + HCOO]−	810.6
Phosphatidylcholine (PC)
(−)	[M + HCOO]−	802.6	C16:0/C18:2	758.6
(+)	[M + Li]+	764.8
(−)	[M + Cl]−	821.7	C18:1/C18:1	786.6
(+)	[M + Li]+	793.7
(+)	[M + Li]+	766.6	C16:0/C18:1	760.6
(+)	[M + Li]+	768.7	C16:0/C18:0	762.6
(+)	[M + Li]+	790.3	C18:1/C18:2	784.6
(+)	[M + Li]+	794.7	C18:0/C18:1	788.6
PhosphatidicAcid (PA)
(−)	[M−H]−	671.5	C16:0/C18:2	672.5
(−)	[M−H]−	673.5	C16:0/C18:1	674.5
(−)	[M + Cl]−	731.6
(−)	[M−H]−	695.5	C18:2/C18:2	696.5
(−)	[M−H]−	697.6	C18:1/C18:2	698.5
(−)	[M + Cl]−	755.6
(−)	[M−H]−	699.5	C18:1/C18:1	701.0
(−)	[M + HCOO]−	767.6
Phosphatidylserine (PS)
(−)	[M−H]−	758.6	C16:0/C18:2	759.5
(−)	[M−H]−	760.6	C16:0/C18:1	761.5
(−)	[M−H]−	784.5	C18:1/C18:2	785.5
(−)	[M−H]−	786.8	C18:1/C18:1	787.5
Phosphatidylinositol (PI)
(−)	[M−H]−	835.7	C16:0/C18:1	836.5
(−)	[M−H]−	833.8	C16:0/C18:2	834.5