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. 2020 May 18;14(8):2179–2196. doi: 10.1038/s41396-020-0679-2

Table 1.

Variables and parameters used in ODE model and implicit calibration model.

Symbol Description
Model variables
 N0 Number of wild-type A. baylyi
 N1 Number of transformant, A. baylyi with pWH1266 plasmid
 P Number of free plasmid
 t Time (h)
Model parameters
 r0 Growth rate of N0, set as 0.2
 r1 Growth rate of N1, set as 0.2
 d0 Death rate of N0
 d1 Death rate of N1
 K Carrying capacity of the environment, set as 109
 μ Transformation frequency
 λ Copy number of plasmid in transformant
 θ Decay rate of free plasmid in environment
 α Weight factor of the error between simulation and observation values of N0
 β Weight factor of the error between simulation and observation values of N1
Calibration parameters
 μref Reference value of transformation frequency, 10−8
 dref Reference value of death rate, 0.0125
 Kμ Scale factor of transformation frequency
 Kd Scale factor of death rate
 Kμ* Optimal scale factor of transformation frequency
 Kd* Optimal scale factor of death rate
 LBμ Lower bound of Kμ
 UBμ Upper bound of Kμ
 LBd Lower bound of Kd
 UBd Upper bound of Kd