Related Experiment Video
Updated: May 12, 2026

Phage-Mediated Genetic Manipulation of the Lyme Disease Spirochete Borrelia burgdorferi
Published on: September 28, 2022
Complete genome sequence of ΦCP51, a temperate bacteriophage of Clostridium perfringens
Teresa Gervasi1, Rosario Lo Curto, Arjan Narbad
1Institute of Food Research, Colney, Norwich NR4 7UA, UK.
Abstract:
During sequencing of the genome of Clostridium perfringens strain 5147-97, a putative prophage was identified, located within a gene for a proposed flavodoxin oxidoreductase. Mitomycin C induction of this strain released a bacteriophage whose morphological features examined by electron microscopy indicated it belonged to the family Siphoviridae. This phage was hence designated as vB_CpeS-CP51. The 39,108-bp genome includes 50 predicted open reading frames (ORFs), including two that may affect sporulation, and two predicted tRNAs. To determine the ends of the prophage, PCR was performed using primers facing outwards from the proposed end genes. This confirmed the presence of a circularised genome in PEG-precipitated bacteriophage particles.
Insights
Researchers identified a novel bacteriophage, vB_CpeS-CP51, from Clostridium perfringens. This Siphoviridae family phage has a 39,108-bp genome with 50 open reading frames (ORFs), including potential sporulation genes.
Area of Science:
- Microbiology
- Virology
- Genomics
Background:
- Clostridium perfringens is an important bacterial pathogen.
- Prophages, integrated viral DNA, can influence bacterial host properties.
Purpose of the Study:
- To characterize a newly identified bacteriophage from Clostridium perfringens strain 5147-97.
- To determine the genomic features and structure of the prophage.
Main Methods:
- Genome sequencing of Clostridium perfringens strain 5147-97.
- Mitomycin C induction to release bacteriophage.
- Electron microscopy for morphological analysis.
- Polymerase Chain Reaction (PCR) to confirm prophage ends.
Main Results:
- A putative prophage was identified within a flavodoxin oxidoreductase gene.
- Mitomycin C induction released a Siphoviridae bacteriophage, designated vB_CpeS-CP51.
- The phage genome is 39,108 bp with 50 predicted open reading frames (ORFs) and two tRNAs.
- PCR confirmed a circularized genome in purified phage particles.
Conclusions:
- vB_CpeS-CP51 is a novel bacteriophage of Clostridium perfringens.
- The phage genome contains genes potentially affecting bacterial sporulation.
- Further characterization of this phage could reveal insights into Clostridium perfringens biology and phage-host interactions.
Related Concept Videos
DNA Bacteriophages
Viral Replication: Lytic Cycle
Lytic Cycle of Bacteriophages
CRISPR and crRNAs
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
Lysogenic Cycle of Bacteriophages
Viral Replication: Lysogenic Cycle

