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Updated: Jul 4, 2026

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Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins
Published on: June 11, 2015
Complete Genome Sequence of Rhodococcus equi Phage Nova53.
Riley E Cornwell1, Isabella R DeJonge1, Mike H Liang1
1Biology, Calvin University, Grand Rapids, Michigan, United States.
Micropublication Biology
|July 3, 2026
Summary
A novel siphovirus bacteriophage, Nova53, was discovered using Rhodococcus equi as a host. Its large genome suggests complex functions and places it in a unique phage cluster.
Area of Science:
- Microbiology
- Virology
- Genomics
Background:
- Bacteriophages are viruses that infect bacteria and are crucial in microbial ecosystems.
- Rhodococcus equi is an important animal pathogen, and understanding its phages can offer novel control strategies.
Purpose of the Study:
- To isolate and characterize a novel bacteriophage targeting Rhodococcus equi.
- To determine the genomic features and phylogenetic placement of the newly discovered phage.
Main Methods:
- Isolation of bacteriophage Nova53 from soil samples using Rhodococcus equi NRRL B-16538 as the host.
- Genomic sequencing and analysis of the isolated bacteriophage.
- Phylogenetic analysis based on gene content.
Main Results:
- A novel siphovirus bacteriophage, named Nova53, was successfully isolated.
- Nova53 possesses a genome of 137,941 base pairs, encoding 250 putative proteins and 31 tRNAs.
- Phylogenetic analysis assigned Nova53 to cluster CG, a group containing only two other known phages.
Conclusions:
- Nova53 represents a new addition to the siphovirus family, with unique genomic characteristics.
- Its placement in cluster CG highlights potential novel evolutionary pathways within this phage group.
- Further research into Nova53 could elucidate its biological role and potential applications.
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