Team:ETH Zurich/Modeling/Parameters

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|Mean total acetaldehyde dehydrogenase enzyme amount per ''e. Coli'' cell
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|Mean acetaldehyde dehydrogenase enzyme concentration in ''e. Coli''
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Revision as of 16:46, 17 September 2011

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Parameters
Single-Cell Model Microfluidics Model Combined Model
Of course, our models do not work without parameters, and in our case, there are quite a lot of them. In order to keep track of all of their respective values and units, we gathered them in a series of tables on this page.

Single-Cell Model

a. - assumption

Parameter Description Value Reference
αTetR TetR production rate 3.93 μM/min [5]
αC CI production rate 1 μM/min [1]
αL1 LacI production rate 1 μM/min [1]
αL2 LacIM1 production rate 1 μM/min [1]
αG GFP production rate 2 μM/min [1]
αLuxI LuxI production rate 1 μM/min [7]
αLuxI LuxI production rate 1 μM/min [7]
αLuxI LuxI production rate 1 μM/min [7]
ks1 AHLi production rate 0.01 1/min [2]
ρR LuxR-AHL dimerization rate 0.5 1/μM3min [1]
αRFP RFP production rate 1 μM/min a.
βAcA Acetaldehyde repression coefficient 7.124 μM [5]
βT TetR repression coefficient 0.01 μM a.
βC CI repression coefficient 0.008 μM [1]
βL LacI repression coefficient 0.8 μM [1]
θR LuxR-AHL repression coefficient 0.01 μM [1]
γTetR TetR degradation rate 0.0692 1/min a.
γC CI degradation rate 0.0692 1/min [1]
γL LacI degradation rate 0.0231 1/min [1]
γG GFP degradation rate 0.0692 1/min [1]
γLuxI LuxI degradation rate 0.0167 1/min [3]
ks0 AHLi degradation rate 1 1/min [2]
kse AHLe degradation rate 1 1/min [2]
γR LuxR-AHL degradation rate 0.0231 1/min [1]
γRFP RFP degradation rate 0.0041 1/min [4]
n1 LacI cooperativity coefficient 2 [1]
n2 CI cooperativity coefficient 2 [1]
n3 TetR cooperativity coefficient 2 [2]
n4 LuxR-AHL cooperativity coefficient 1 [1]
n5 AlcR-AcA cooperativity coefficient 1.352 [5]
η Diffusion rate across the cell membrane 2 [2]
ηext Average diffusion rate for all cells 1 [2]
N Number of cells 1 a.
aXylR XylR production rate 95.5 uM/min [6]
γXylRi XylRi degradation rate 0.03553 1/min [6]
γXylRa XylRa degradation rate 0.04527 1/min [6]
KXylR XylR activation coefficient 1.419*10-3 uM [6]
rXylR XylRi oligomerization constant 0.04315e-3 1/(uM*min) [6]
rRXylR XylRa dissociation constant 0.1301e-3 1/(uM*min) [6]

Microfluidics Model

Parameter Description Value Reference
lChannel Microfluidics channel length 5 cm a.
rChannel Microfluidics channel radius 1 mm a.
VeColi E. coli average volume 2 μm3 TODO
cdOD600, undiluted E. coli Cell Density at OD600 = 1 1e9 1/ml TODO
cDilution Dilution of cell culture in microfludics channel 1/16 TODO: Choice in Microfluidics Model
cdRelOD600, undiluted Relative E. coli Cell Density at OD600 = 1, undiluted 0.002 TODO: Derivation in Microfluidics Model
cdRelOD600, diluted Relative E. coli Cell Density at OD600 = 1, diluted 0.000125 TODO: Derivation in Microfluidics Model
DAcAl Acetaldehyde Diffusion Constant 1.23e-5 cm2/s TODO
mAcAl Acetaldehyde Molecular Weight 44.05316 u TODO
DAHL AHL Diffusion Constant 4.9e-6 cm2/s TODO
mAHL AHL Molecular Weight 213.13 u TODO
Kcat,AcAl Specific enzyme activity of acetaldehyde dehydrogenase in e. Coli TODO
[E]T Mean acetaldehyde dehydrogenase enzyme concentration in e. Coli TODO
vmax,AcAl Maximum reaction rate for acetaldehyde dehydrogenase degrading acetaldehyde TODO
KM,AcAl Michaelis-Menten constant for acetaldehyde dehydrogenase degrading acetaldehyde TODO

Combined Model

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