Proteases in bacteriophage defense systems and their potential in bioengineering

Review (2026)
Author(s)

Konstantinos Kalogeropoulos (TU Delft - BN/Stan Brouns Lab, Kavli institute of nanoscience Delft, University of Denmark)

Sam P.B. van Beljouw (Kavli institute of nanoscience Delft, TU Delft - BN/Stan Brouns Lab)

Dani Feldmann (Student TU Delft, Kavli institute of nanoscience Delft)

Daan F. van den Berg (TU Delft - BN/Stan Brouns Lab, Kavli institute of nanoscience Delft)

Stan J.J. Brouns (Kavli institute of nanoscience Delft, TU Delft - BN/Stan Brouns Lab)

Research Group
BN/Stan Brouns Lab
DOI related publication
https://doi.org/10.1016/j.tibs.2025.10.006
More Info
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Publication Year
2026
Language
English
Research Group
BN/Stan Brouns Lab
Issue number
1
Volume number
51
Pages (from-to)
64-79
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Abstract

Novel phage defense systems featuring diverse enzymatic activities are continually being discovered. Among these, defense systems employing proteolytic enzymes have been identified, revealing a previously unrecognized enzymatic activity in phage defense. These protease-associated defense systems represent an untapped reservoir for new biotechnological tools and may serve as a springboard for the development of proteome editors. This review outlines recent advancements in the discovery and characterization of protease-containing defense systems, proposes methods for further exploration and investigation of protease activity, and considers the prospect of protease defense systems for modulating protein processing and cell fate.