Possible implications and applications of the yeast killer phenomenon in the fight against infectious diseases are reviewed, with particular reference to some wide-spectrum killer toxins (KTs) produced by and other related species. A perspective on the applications of these KTs in the medical field is provided considering (1) a direct use of killer strains, in particular in the symbiotic control of arthropod-borne diseases; (2) a direct use of KTs as experimental therapeutic agents; (3) the production, through the idiotypic network, of immunological derivatives of KTs and their use as potential anti-infective therapeutics. Studies on immunological derivatives of KTs in the context of vaccine development are also described.
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http://dx.doi.org/10.3390/toxins13090655 | DOI Listing |
Microorganisms
December 2024
Membrane Biophysics and Nanotechnology Laboratory, Natural Sciences Faculty, Autonomous University of Quéretaro, Av. De las Ciencias S/N, Juriquilla, Querétaro 76220, Mexico.
The systems of are defined by the co-infection of two viral agents, an M virus and a helper virus. Each toxin is determined by the type of M virus (ScV-M1, ScV-M2, ScV-M28, and ScV-Mlus), which encodes a specific toxin (K1, K2, K28, and Klus). Since their discovery, interest in their potential use as antimicrobial agents has driven research into the mechanisms of action of these toxins on susceptible cells.
View Article and Find Full Text PDFFungal Genet Biol
January 2025
Conway Institute and School of Medicine, University College Dublin, Dublin 4, Ireland. Electronic address:
Zymocin-like killer toxins are anticodon nucleases secreted by some budding yeast species, which kill competitor yeasts by cleaving tRNA molecules. They are encoded by virus-like elements (VLEs), cytosolic linear DNA molecules that are also called killer plasmids. To date, toxins of this type have been found only in budding yeast species (Saccharomycotina).
View Article and Find Full Text PDFFuture Microbiol
December 2024
Department of Biology, Faculty of Biological Sciences, Falavarjan Branch, Islamic Azad University, Isfahan, Iran.
bioRxiv
December 2024
Stowers Institute for Medical Research, Kansas City, Missouri, United States of America.
Killer meiotic drivers are selfish DNA loci that sabotage the gametes that do not inherit them from a driver+/driver- heterozygote. These drivers often employ toxic proteins that target essential cellular functions to cause the destruction of driver- gametes. Identifying the mechanisms of drivers can expand our understanding of infertility and reveal novel insights about the cellular functions targeted by drivers.
View Article and Find Full Text PDFMicrob Biotechnol
December 2024
Explogen LLC, Lviv, Ukraine.
The phylum Actinomycetota and genus Streptomyces in particular are the major source for discovery of natural products with diverse chemical structures and a variety of biological activities. Genes encoding biosynthetic pathways for bacterial natural products are grouped together into biosynthetic gene clusters (BGCs). The size of a typical actinobacterial BGC may range from 10 kb to 200 kb, which makes their cloning for heterologous expression a challenging task.
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