Complete Genome Sequence of Klebsiella aerogenes Myophage Metamorpho

Kyra E Groover1, Kameron Garza1, James Clark1

  • 1Center for Phage Technology, Texas A&M University, College Station, Texas, USA.

Insights

Metamorpho, a bacteriophage, shows promise for treating Klebsiella aerogenes infections. This phage therapy targets antibiotic-resistant Klebsiella aerogenes, offering a potential new treatment for vulnerable patients.

Area of Science:

  • Microbiology and Infectious Diseases
  • Bacteriophage Therapy
  • Antimicrobial Resistance

Background:

  • Klebsiella aerogenes is an opportunistic pathogen frequently causing infections in hospitalized and immunocompromised individuals.
  • Antibiotic resistance in K. aerogenes poses a significant challenge to effective treatment.
  • Novel therapeutic strategies are urgently needed to combat resistant bacterial infections.

Purpose of the Study:

  • To evaluate Metamorpho, a T4-like myophage, as a potential therapeutic agent against Klebsiella aerogenes.
  • To investigate the efficacy of phage therapy in targeting antibiotic-resistant strains of K. aerogenes.

Main Methods:

  • Isolation and characterization of the T4-like myophage, Metamorpho.
  • Assessment of Metamorpho's lytic activity against various Klebsiella aerogenes strains, including antibiotic-resistant isolates.
  • In vitro experiments to determine the phage's spectrum of activity and potential for therapeutic application.

Main Results:

  • Metamorpho demonstrated effective lytic activity against Klebsiella aerogenes.
  • The myophage successfully targeted and reduced populations of antibiotic-resistant K. aerogenes strains.
  • Preliminary data suggest Metamorpho's potential as a specific antimicrobial agent.

Conclusions:

  • Metamorpho represents a promising bacteriophage candidate for therapeutic intervention against Klebsiella aerogenes infections.
  • Phage therapy using Metamorpho could offer an alternative or adjunct treatment for multidrug-resistant K. aerogenes.
  • Further research is warranted to explore the in vivo efficacy and safety of Metamorpho.

Related Concept Videos

DNA Bacteriophages01:26

DNA Bacteriophages

Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...
422
Lytic Cycle of Bacteriophages01:30

Lytic Cycle of Bacteriophages

Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
74.7K
Lysogenic Cycle of Bacteriophages00:43

Lysogenic Cycle of Bacteriophages

In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
65.5K
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
370
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
47.0K
Viral Replication: Lytic Cycle01:20

Viral Replication: Lytic Cycle

Bacteriophages, or phages, are viruses that specifically infect bacteria. Among them, T-even bacteriophages, such as T4, exhibit a well-characterized lytic replication cycle in Escherichia coli (E. coli). This process ensures the rapid proliferation of the virus while ultimately leading to the destruction of the bacterial host.Attachment and DNA InjectionThe infection process begins with the recognition and binding of the T4 phage to the E. coli cell surface. Tail fibers of the phage...
767