Team:UANL Mty-Mexico/Modeling/Biosensor

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iGEM UANL 2012


Biosensor


Our biosensor model is a continuation of the previously exposed transport and accumulation model with the addition of the production of luciferase as a function of ArsR|As concentration. In this way, we can relate the concentration of extracellular As to the production of luciferase.


ODEs



The ODEs that describe the kinetics of the biosensor modules include all the assumptions presented in the core model and the equations presented for the accumulation and transport module.


Parameters







Parameter table


Parameter

Description

Value

References

αmArsR

Maximal transcription rate of ArsR

3.74 nM/min

Assumptions

αmFluc

Maximal transcription rate of Fluc

1.40 nM/min

Assumptions

αpArsR

Maximal translation rate of ArsR

9.74 nM/min

Assumptions

αpFluc

Maximal translation rate of Fluc

2.06 nM/min

Assumptions

δmRNAArsR

Degradation rate of ArsR mRNA

2.16x10-1 min-1

Assumptions, Selinger, et al. (2003)

δmRNAFluc

Degradation rate of Fluc mRNA

3.37x10-2 min-1

Assumptions, Suter, et al. (2011), Karetnivok and Lehto (2006).

δArsR

Degradation rate of ArsR

2.31x10-2 min-1

Assumptions

δFluc

Degradation rate of Fluc

2.60x10-2 min-1

Assumptions, Auld, et al. (2008)

proars

Concentration of ars promoter

aprox. 1*plasmid copy (nM)

Assumptions


Simulations


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