From: The role of feedback control mechanisms on the establishment of oscillatory regimes in the Ras/cAMP/PKA pathway in S. cerevisiae
Molecular species
Copy number (molecules/cell)
Reference
Cyr1
200
[16]
Cdc25
300
[29]
Ira2
Pde1
1,400
PKA
2,500
PPA2
4,000
Pde2
6,500
Ras2-GDP
20,000
GDP
∗1.5 ×106
[23]
GTP
∗5.0 ×106
ATP
∗2.4 ×107