Page 120 - Color Atlas of Biochemistry

Enzymes 111

A. Activated metabolites
ADP
U P A
P P P Glc P a P P P
Glc HO O
Glucose Glc CH 2 C
1-phosphate H O H HC NH
H
b OH H O O HC C
Glycogen Extended glycogen HO O P O P O N O
P P P P CH 2 O
Glc H OH O O
H H
H H
U c U
Glc P P P P UDP-glucose OH OH

1. Uridine diphosphate glucose (UDP-glucose)

ADP
C A
P P P Choline P P P P NH 2
a
C
Choline HC NH
CH 3 O O
HC C
b Diacylglycerol Phosphatidylcholine H 3 C N (CH 2 ) 2 O P O P O CH 2 N O
O
CH 3 O O
H H
P P H H
P Choline OH OH
CDP-choline
C c C
Choline P P P
2. Cytidine diphosphate choline (CDPcholine)

P P
A A A H H
P P P O S P a P P P N
3
N C
b SO 4 2 C N
A O O HC C CH
P P O S O P O CH 2 N N
OH O SO 3 O O O
Sulfated H H
substrate H H
A A
O S P c P O OH
3
P P O P O
3. Phosphoadenosine phosphosulfate (PAPS) PAPS O

A a
P P P Methionine Homocysteine
CH 3 A
5
N -Methyl-
b THF THF THF Adenosine COO H H
3 P d H 3 N C H N
CH 2 N C
CH 3 C N
CH 2 H C
R N C C
Methylated R H 3 C S CH 2 N H
H C S c substrate O
3
A S H H
A H H
4. S-adenosyl methionine (SAM)
S-adenosyl- OH OH
homocysteine SAM

Koolman, Color Atlas of Biochemistry, 2nd edition © 2005 Thieme
All rights reserved. Usage subject to terms and conditions of license.