12/29/2009
1
2. Phospholipids, triacylglycerols and complex lipids
Membranes contain a variety of glycerophospholipids and sphingolipids
CH
2
-O-C
O
CH-O-C
O
stearic acid (C18:0)
1-stearoyl-2-oleoyl-
phosphatidylcholine
other common glycerophospholipids:
phosphatidyl
ethanolamine
phosphatidyl
serine
phosphatidyl
glycerol
oleic acid (C18:1(
Δ
9
))
CH
2
-O-P-O-CH
2
CH
2
-N(CH
3
)
3
O
O
phosphocholine
glycerol
+
-
sphingomyelin
phosphatidyl
inositol
sphingolipids with carbohydrate
groups serve as recognition
factors on cell surfaces
HO-CH
CH-N-C
O
CH
2
-O-P-O-CH
2
CH
2
-N(CH
3
)
3
O
O
H
-
+
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