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Recombineering Homologous Recombination Constructs in Drosophila

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Published on: July 13, 2013

Cell-free recombinase-integrated Boolean output system.

Jingyao Chen¹, Aviva Borison¹, Douglas Densmore²

¹Department of Biomedical Engineering, Boston University, Boston, MA, USA.

|September 24, 2025

Summary

This summary is machine-generated.

We developed a cell-free recombinase-integrated Boolean output system (CRIBOS) for multiplex genetic circuits. This portable system enables stable DNA information storage for over four months, advancing biocomputation and biomanufacturing applications.

Keywords:

Boolean allosteric transcription factor biocomputation cell-free environmental sensing genetic circuit synthetic biology

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Area of Science:

Synthetic Biology
Biotechnology
Genetic Engineering

Background:

Cell-free gene expression systems are crucial for research and biomanufacturing.
Existing systems have limitations in complex genetic circuit design and portability.

Purpose of the Study:

To introduce the cell-free recombinase-integrated Boolean output system (CRIBOS).
To demonstrate CRIBOS's capability for building multiplex genetic circuits in cell-free environments.
To showcase a portable, paper-based CRIBOS for biological information storage.

Main Methods:

Developed CRIBOS, a site-specific recombinase-based platform for cell-free multiplex genetic circuits.
Constructed over 20 multi-input-multi-output circuits, including decoders.
Integrated allosteric transcription factor (aTF)-based sensors for environmental sensing.
Utilized paper-based CRIBOS for a biological memory storage device.

Main Results:

Successfully built and demonstrated over 20 multiplex genetic circuits using CRIBOS.
Achieved multiplex environmental sensing capabilities by combining CRIBOS with aTF sensors.
Created a paper-based CRIBOS device capable of storing DNA-based biological information for over 4 months.
Demonstrated the system's portability, stability, and low resource requirements.

Conclusions:

CRIBOS expands the application of multiplex Boolean logic gates to cell-free systems.
The platform enhances the versatility of genetic circuit design and application.
Paper-based CRIBOS offers a stable and portable solution for biological information storage.
This work opens new avenues for sophisticated cell-free genetic circuit development.