Page 224 - Color Atlas of Biochemistry

Biological membranes 215

A. Structure of the plasma membrane

Extracellular
side
Glycoprotein
Oligosaccharide
Phospholipid

Lipid
bilayer Glycolipid

5 nm

Peripheral
membrane Integral Cytoplasmic
protein membrane proteins side

B. Membrane lipids

a Phosphatidyl- a b c d
inositol

b Sphingomyelin
Polar
c Ganglioside

d Phosphatidyl- Outer
ethanolamine leaflet

e Cerebroside
Apolar
f Phosphatidyl-
choline
g Cholesterol Inner
leaflet
h Phosphatidyl-
serine

Phospholipids Polar
Glycolipids
Cholesterol e f g h

C. Membrane proteins

Type I Type II Type III Type IV Type V

N C
TypeVI

C N
Lipid
1. α-Helical anchor 2. β-Barrel

Koolman, Color Atlas of Biochemistry, 2nd edition © 2005 Thieme
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