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Filamentous bacteriophage M13: Structure, biology, and biotechnological applications
Paolo Passaretti1, Kate Stokes2, Jake Carter3
1School of Chemical Engineering, Advanced Nanomaterials Structures and Applications Laboratories, College of Engineering and Physical Sciences, University of Birmingham, UK; Department of Cancer and Genomic Sciences, College of Medicine and Health, University of Birmingham, UK.
Abstract:
The M13 filamentous bacteriophage has transcended its origins as a model for viral replication to become a premier programmable bio-scaffold at the intersection of nanotechnology, synthetic biology and clinical medicine. While famously known for the Nobel Prize-winning development of phage display, M13's utility now extends far beyond peptide libraries. Its unique anisotropic structure, genetic plasticity and chemically addressable coat proteins enable the precise bottom-up assembly of functional nanomaterials, ranging from high-performance energy storage to targeted theranostic agents. This review provides a definitive account of the M13 platform, synthesising foundational structural biology and infection dynamics with state-of-the-art engineering strategies. We detail the physical and genetic architecture of the virion, provide a critical evaluation of production and purification methodologies, and explore the chemical-genetic toolboxes used to functionalise its surface. By bridging the gap between fundamental virology and applied materials science, this synthesis identifies the current bottlenecks in clinical and industrial translation and offers a roadmap for the next generation of M13-based biotechnologies.
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