Biology Reference
In-Depth Information
Example 8.1.
In Eqs. (8.7)-(8.9), there are a total of 9 metabolites. Thus,
S
will
have rows
[
S
]
i
∗
with each corresponding to a
C
i
, and columns
[
S
]
∗
j
with each cor-
responding to an equation in the form of Eq. (
8.6
). Letting
C
1
=
GLC
,
C
2
=
,
ADP
C
3
=
G6P
,
C
4
=
ATP
,
C
5
=
1
,
3BPG
,
C
6
=
3PG
,
C
7
=
PEP
,
C
8
=
Pyr
,
and
H
+
,
C
9
=
then the first reaction Eq. (
8.7
) gives rise the first column
⎡
⎤
−
1
1
1
⎣
⎦
−
1
0
0
0
0
0
[
S
]
∗
1
=
.
Exercise 8.2.
Use Eqs. (
8.8
) and (
8.9
) to fill in the remaining two columns of the
9 by 3 stoichiometric matrix
S
for the system given by (8.7)-(8.9):
⎡
⎤
−
1
1
1
⎣
⎦
−
1
0
0
0
0
0
S
=
.
Exercise 8.3.
a.
The stoichiometric matrix
S
you found in Exercise
8.2
corresponds to a system of
only
some
of the equations needed to represent the full glycolysis network. What
would be the shape of the stoichiometric matrix for the full glycolysis network?
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