Genomic analysis of a novel phage vB_SenS_ST1UNAM with lytic activity against Salmonella enterica serotypes.
Diagn Microbiol Infect Dis
; 109(3): 116305, 2024 Jul.
Article
em En
| MEDLINE
| ID: mdl-38643675
ABSTRACT
In this study, we present the complete annotated genome of a novel Salmonella phage, vB_SenS_ST1UNAM. This phage exhibits lytic activity against several Salmonella enterica serotypes, such as S. Typhi, S. Enteritidis, and S. Typhimurium strains, which are major causes of foodborne illness worldwide. Its genome consists of a linear, double-stranded DNA of 47,877 bp with an average G+C content of 46.6%. A total of 85 coding regions (CDS) were predicted, of which only 43 CDS were functionally assigned. Neither genes involved in the regulation of lysogeny, nor antibiotic resistance genes were identified. This phage harbors a lytic cassette that encodes a type II-holin and a Rz/Rz1-like spanin complex, along with a restriction-modification evasion system and a depolymerase that degrades Salmonella exopolysaccharide. Moreover, the comparative analysis with closely related phage genomes revealed that vB_SenS_ST1UNAM represents a novel genus, for which the genus "Gomezvirus" within the subfamily "ST1UNAM-like" is proposed.
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Base de dados:
MEDLINE
Assunto principal:
Fagos de Salmonella
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Composição de Bases
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Genoma Viral
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Salmonella enterica
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Sorogrupo
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article