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Related Experiment Video

Updated: Nov 6, 2025

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Rapid Assembly of Multi-Gene Constructs using Modular Golden Gate Cloning

Published on: February 5, 2021

Scalable recombinase-based gene expression cascades.

Tackhoon Kim^1,2, Benjamin Weinberg³, Wilson Wong³

¹Research Lab of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.

Nature Communications

|May 12, 2021

Summary

This summary is machine-generated.

Scientists developed a new gene circuit using tandem gene perturbation cassettes (GPCs) for precise, sequential gene expression. This modular system allows controlled temporal modulation of genetic changes, useful for modeling complex biological processes.

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Area of Science:

Synthetic biology
Molecular and cell biology
Genetic engineering

Background:

Temporal control of gene expression is crucial for understanding complex biological phenomena.
Existing gene circuit architectures lack scalability and generalizability for sequential genetic perturbations.

Purpose of the Study:

To develop a scalable and generalizable gene circuit architecture for programming sequential genetic perturbations.
To enable precise temporal control over the expression of multiple genes.

Main Methods:

Designed a modular recombinase-based gene circuit architecture using tandem gene perturbation cassettes (GPCs).
Utilized alternating treatment with two orthogonal ligands to control sequential gene expression.
Employed tandem GPCs to express single-guide RNAs, initiating transcriptional cascades and sequential mutation accumulation.
Constructed an all-in-one gene circuit for sequential genomic editing, cell cycle synchronization, and self-deletion.

Main Results:

Demonstrated sequential expression of multiple genes in a defined temporal order using tandem GPCs.
Successfully programmed transcriptional cascades and sequential mutation accumulation via sequential single-guide RNA expression.
Developed a gene circuit capable of sequential genomic locus editing, cell synchronization, and programmed deletion.
Validated the utility of tandem GPCs as a multi-tiered cellular programming tool.

Conclusions:

Tandem GPCs provide a novel, modular platform for precise temporal control of gene expression and genetic perturbations.
This gene circuit architecture facilitates the modeling of complex, multi-stage genetic changes, including tumorigenesis and cellular differentiation.
The developed system offers a versatile tool for advanced cellular programming and synthetic biology applications.