Page 132 - Color Atlas of Biochemistry

Energy Metabolism 123

A. ATP: structure

Phosphoric acid Phosphoric acid N-glycosidic
anhydride bonds ester bond NH 2 bond

N C
C N
O O O HC Adenine
C CH
N
O P γ O P β O P α O CH 2 N
O
O O O
H H
1. Formula H H

O O OH OH
O P β O P α O CH 2
O
O O
H
γ β α Ribose
Mg H
Phosphate residue
OH Adenosine
2
2. Mg -Complex
B. Hydrolysis energies

1 2 3 4

∆G OI P P P P 1 2 3
kJ · mol -1 P P +
P
-10 ADP + AMP + + P

ATP P
-20 Adenosine P Positive
ATP Neutral

-30
ATP Negative

1. Hydrolysis energies 2. ATP: charge density

C. Types of ATP formation

Phosphorylated Electrons
substrate Protons ATP

A synthase
P PP P
H A
ATP PP P
P A red ATP
Enzyme
e
Substrate
chain phos-
phorylation
A

H

A A
P P P P P
Substrate ADP ADP
P
1. Phosphate transfer 2. Oxidative phosphorylation

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