Title
Design and implementation of a biomolecular circuit for tracking protein concentration.
Abstract
This paper describes the design, modeling, synthesis and preliminary validation of a protein concentration regulator circuit. The circuit is designed to maintain the level of a target protein to a reference level, specified by the amount of another protein. This is implemented using a single negative feedback loop that inhibits the production of the target protein once its concentration is equal to the reference amount. A mathematical model consisting of a set of ODEs is derived from mass action laws and Hill function approximations of protein production. Steady-state analysis of the model is used to predict parameter sensitivity and experimental behavior. We implemented this circuit in E. coli using scaffold-based sequestration and transcriptional activation. Preliminary experimental results show the system matching predictions from our model and performing the expected task.
Year
DOI
Venue
2013
10.1109/ACC.2013.6580175
ACC
Keywords
Field
DocType
ode,steady state analysis,molecular biophysics,differential equations,biochemistry,steady state,biocontrol,mathematical model,production,ordinary differential equation,proteins,negative feedback
Differential equation,Regulator,Function approximation,Computer science,Control theory,Target protein,Negative feedback,Control engineering,Molecular biophysics,Ode
Conference
ISSN
Citations 
PageRank 
0743-1619
1
0.38
References 
Authors
1
3
Name
Order
Citations
PageRank
Emmanuel L. C. de los Santos110.38
Victoria Hsiao210.72
Richard M. Murray3123221223.70