Abstract
The viral fraction of human and experimental animal fecal matter is increasingly attracting research interest due to its newfound influence on the gut microbiome and host health. During the past decade, high-throughput sequencing techniques have seen massive improvements, and in recent years, bioinformatics pipelines for virome analysis have also vastly improved with respect to both user-friendliness and output quality. Yet, the shape and quality of such data are highly dependent on how the viruses are isolated and their genomes extracted and processed to build sequencing libraries.
Here we describe a simple protocol for virus isolation from fecal samples suitable for further propagation/characterization or sequencing efforts. It is based on two filtration steps: one for removing large particles such as bacteria and one for removing free DNA and up-concentrating phages and other viruses in the solution. The method is highly scalable, adaptable to a long range of sample types including low-input samples, and has a quantifiable output suitable for both plaquing and sequencing.
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Larsen, F., Jakobsen, R.R., Mao, X., Castro-Mejia, J., Deng, L., Nielsen, D.S. (2024). Purification and Up-Concentration of Bacteriophages and Viruses from Fecal Samples. In: Tumban, E. (eds) Bacteriophages. Methods in Molecular Biology, vol 2738. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3549-0_6
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DOI: https://doi.org/10.1007/978-1-0716-3549-0_6
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