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Related Experiment Video

Updated: May 9, 2026

An Ecdysone Receptor-based Singular Gene Switch for Deliberate Expression of Transgene with Robustness, Reversibility, and Negligible Leakiness

An Ecdysone Receptor-based Singular Gene Switch for Deliberate Expression of Transgene with Robustness, Reversibility, and Negligible Leakiness

Published on: May 7, 2018

Engineering stability in gene networks by autoregulation.

A Becskei¹, L Serrano

¹EMBL, Structures & Biocomputing, Heidelberg, Germany. becskei@embl-heidelberg.de

|June 13, 2000

Summary

Negative feedback loops in gene circuits enhance stability in cellular systems. This study demonstrates how these regulatory mechanisms limit fluctuations in biochemical parameters, crucial for cell function.

Area of Science:

Systems Biology
Molecular Biology
Genetics

Background:

Cellular homeostasis and development rely on genetic and biochemical networks.
These networks must tolerate variations in transcription, translation, and degradation rates.
Cellular diversity arises from environmental stimuli and stochastic biochemical processes.

Purpose of the Study:

To investigate the stabilizing role of autoregulatory negative feedback loops in gene circuits.
To demonstrate the effectiveness of negative feedback in limiting fluctuations of network components.

Main Methods:

Design and construction of simple gene circuits in Escherichia coli.
Incorporation of regulator and transcriptional repressor modules.
Experimental validation of circuit stability.

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Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

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Last Updated: May 9, 2026

An Ecdysone Receptor-based Singular Gene Switch for Deliberate Expression of Transgene with Robustness, Reversibility, and Negligible Leakiness

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Published on: May 7, 2018

A New Toolkit for Evaluating Gene Functions using Conditional Cas9 Stabilization

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Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

Published on: July 6, 2021

Main Results:

Demonstrated gain of stability in engineered gene circuits.
Negative feedback loops were shown to limit the range of component concentration fluctuations.
The study provides experimental evidence for the proposed stabilizing effect of feedback.

Conclusions:

Negative feedback is a key mechanism for achieving stability in biological networks.
Engineered gene circuits with negative feedback offer a model for understanding cellular robustness.
This work supports the hypothesis that negative feedback loops confer stability to gene regulatory networks.