Abstract
The genome analysis of bacteriophages is crucial for their successful application in clinical and biocontrol settings. In this study, we isolated a new lytic phage, vB_SenS_TUMS-E15, from hospital sewage that was effective against Salmonella enteritidis, and analyzed its genomic features. The complete genome analysis revealed that E15 had circularly permuted double-stranded DNA of 43,048 base pairs (bp), with a G+C content of 49.7%. Sixty coding sequences (CDSs) were predicted in the genome, with 44 CDSs encoding known proteins in different modules, including packaging, structure, replication, metabolism, and lysis modules. No tRNA genes were found in the genome. Eight transcriptional promoter sequences and 37 rho-independent terminators were detected in the E15 genome. Phylogenetic analysis based on whole-genome sequences suggested that phage E15 should be classified as a member of the Jersyvirus genus in the subfamily Guernseyvirinae. Furthermore, no antibiotic-resistance genes, toxins, virulence factors, or lysogen-forming genes were observed in the genome. This suggests that E15 is a lytic phage, making it a promising candidate for clinical and biocontrol purposes.
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