Fujita et al. 2010

Model by Fujita et al 2010 as one of the proposed benchmark models provided by Hass et al. 2019. The model represents epidermal growth factor (EGF)-dependent Akt pathway. Data from [Fig. 1b] with a corresponding EGF step input from [Fig. 1a] in Fujita et al. 2010 was used for estimation and Global Sensitity Analysis of 12 parameters. We performed parameter estimation starting from the model parameters provided in the publication, using a search space 5 order of magnitude above and below for each parameter.

Reactions chosen for parameter estimation and Global Sensitivity Analysis

  • EGFR + EGF <=> EGF_EGFR

  • pEGFR + Akt <=> pEGFR_Akt

  • pEGFR_Akt -> pEGFR + pAkt

  • pEGFR -> null

  • pAkt + S6 <=> pAkt_S6

  • pAkt_S6 -> pAkt + pS6

  • pAkt -> Akt

  • pS6 -> S6

  • EGF_EGFR -> pEGFR

  • EGFR -> null

Model Repository

https://github.com/jpgsantos/Model_Fujita_2010

References

Fujita, K.A., Toyoshima, Y., Uda, S., Ozaki, Y.I., Kubota, H. and Kuroda, S., 2010. Decoupling of receptor and downstream signals in the Akt pathway by its low-pass filter characteristics. Science Signaling, 3(132), pp.ra56-ra56.

Hass, H., Loos, C., Raimúndez-Álvarez, E., Timmer, J., Hasenauer, J. and Kreutz, C., 2019. Benchmark problems for dynamic modeling of intracellular processes. Bioinformatics, 35(17), pp.3073-3082.