Biology Reference
In-Depth Information
Table 2.7
Fixed points for the Boolean model from Eqs. (
2.59
). The system always settles in a fixed point. There are no limit
cycles. Two steady states are possible for medium lactose concentrations (the system is bistable).
Inducer Level
L
e
L
e
high
M
M
old
B
B
old
A
A
old
L
L
old
P
P
old
State
1
Low ext. lactose
0
0
0
0
0
0
0
0
0
0
0
0
Off
2
High ext. lactose
1
1
1
0
1
0
1
0
1
0
1
0
On
3
Medium ext. lactose
1
0
0
0
0
0
0
0
0
0
0
0
Off
4
Medium ext. lactose
1
0
1
0
1
0
1
0
1
0
1
0
On
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