Team:Paris Bettencourt/Modeling/Parameters

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Team IGEM Paris 2011

Parameters

Parameter Description Value Unit Reference
Concentration of X NA molecules
per cell
Notation convention
Delay due to protein X production and maturation NA s Notation convention
Maximal production rate of pVeg promoter (constitutive) 0.02 molecules.s-1
or pops
Estimated, see the justification
Maximal production rate of pLac promoter 0.02 molecules.s-1
or pops
Estimated, see the justification
Maximal production rate of pT7 promoter 0.02 molecules.s-1
or pops
Estimated, see the justification
Dissociation constant for IPTG to LacI 1200 molecules
per cell
Aberdeen 2009 wiki
Dissociation constant for LacI to LacO (pLac) 700 molecules
per cell
Aberdeen 2009 wiki
Dissociation constant for T7 RNA polymerase to pT7 10 molecules
per cell
We used the classic assumption 1nM=1 molecule per cell and [1]
Translation rate of proteins 0.9 s-1 Estimated, see the justification
Dilution rate in exponential phase 2.88x10-4 s-1 Calculated with a 40 min generation time. See explanation
Degradation rate of mRNA 2.88x10-3 s-1 Uri Alon (To Be Confirmed)
Degradation rate of GFP 10-4 s-1 BioNumbers
Degradation rate of RFP 10-4 s-1 Estimated equal to GFP degradation rate
Delay due tT7 RNA polymerase production and maturation 300 s [2]
Delay due GFP production and maturation 360 s BioNumbers
Delay due RFP production and maturation 360 s Estimated equal to GFP delay (similar molecules)
Delay due to mRNA production 30 s BioNumbers with an approximation: all our contructs are around 1-2kb

References

  1. Cytoplasmic expression of a reporter gene by co-delivery of T7 RNA polymerase and T7 promoter sequence with cationic liposomes, X Gao and L Huang, accessible here
  2. Molecular Biology for Masters by Dr. G. R. Kantharaj, accessible here