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Recombinant DNA

Recombinant DNA

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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.

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Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...

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Related Experiment Video

Updated: Jan 23, 2026

Efficient Agroinfiltration of Plants for High-level Transient Expression of Recombinant Proteins

Efficient Agroinfiltration of Plants for High-level Transient Expression of Recombinant Proteins

Published on: July 23, 2013

Recombinant cystatins in plants.

Jonathan Tremblay¹, Marie-Claire Goulet¹, Dominique Michaud¹

¹Centre de recherche et d'innovation sur les végétaux, Faculté des Sciences de l'agriculture et de l'alimentation, Université Laval, Canada.

|June 14, 2019

Summary

Plant cystatins are valuable tools in biotechnology for crop protection and regulating plant proteases. Research focuses on enhancing their properties for improved pest control and novel agricultural applications.

Keywords:

Cys proteases Phytocystatins Plant cystatins Plant protection Protease inhibitor engineering Recombinant protein stabilization Storage protein turnover

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Area of Science:

Biotechnology
Plant Science
Molecular Biology

Background:

Plant cystatins are well-studied inhibitors of cysteine proteases.
Their application in crop protection against pests and pathogens is extensively documented.
Recent interest focuses on their role in regulating endogenous plant proteases for agronomic traits.

Purpose of the Study:

To summarize recent advances in plant cystatin applications in plant biotechnology.
To discuss the molecular improvement of plant cystatins for enhanced efficacy.
To explore their use in creating protease-depleted environments for plant cell bioreactors.

Main Methods:

Review of existing literature on plant cystatins.
Analysis of structural characteristics and functional properties.
Discussion of biotechnological applications and molecular modifications.

Main Results:

Plant cystatins show significant potential in crop protection.
They can be engineered to modulate protease activity in plants.
Applications include enhancing crop traits and improving recombinant protein production.

Conclusions:

Plant cystatins are versatile tools in plant biotechnology.
Ongoing research aims to optimize their inhibitory effects and target specificity.
These proteins offer promising avenues for sustainable agriculture and industrial applications.