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Related Concept Videos

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 lytic replication...
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...
Microorganisms in Medicine and Therapeutics01:29

Microorganisms in Medicine and Therapeutics

Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
Bacteriophages of the Human Virome01:23

Bacteriophages of the Human Virome

Bacteriophages are found throughout the human body. They may even outnumber eukaryotic viruses, forming an important and dynamic component of the human virome. Indeed, phages represent the most abundant viral entities, with densities in the gut reaching up to 10⁹ particles per gram of fecal matter, and many belonging to orders such as Caudovirales and Microviridae, while a substantial proportion remains unclassified as viral “dark matter.”Lysogeny and Genetic ExchangeIn the gut, bacteriophages...
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...

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Related Experiment Video

Updated: Jun 10, 2026

Using Phage Display to Develop Ubiquitin Variant Modulators for E3 Ligases
06:30

Using Phage Display to Develop Ubiquitin Variant Modulators for E3 Ligases

Published on: August 27, 2021

Phage display: concept, innovations, applications and future.

Jyoti Pande1, Magdalena M Szewczyk, Ashok K Grover

  • 1Department of Medicine, HSC 4N41 McMaster Univ, Hamilton, ON, Canada.

Biotechnology Advances
|July 28, 2010
PubMed
Summary
This summary is machine-generated.

Phage display technology enables the selection of specific binding peptides from diverse libraries. This powerful tool rapidly isolates high-affinity ligands for applications in drug discovery and therapeutic development.

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Immunology

Background:

  • Phage display is a versatile technique for expressing foreign peptides on phage surfaces.
  • Filamentous phage M13 is a common vector for constructing diverse peptide libraries.
  • Methods exist to increase library diversity or create biased libraries for specific targets.

Purpose of the Study:

  • To summarize the principles and applications of phage display technology.
  • To highlight advancements in library screening methods.
  • To underscore the utility of phage display in various biological and therapeutic fields.

Main Methods:

  • Construction of diverse phage display libraries using recombinant techniques.
  • Screening libraries against synthetic or native targets via biopanning.
  • Advanced screening methods include affinity chromatography, negative screening, and competitive elution.
  • Limited mutagenesis for affinity and selectivity enhancement.

Main Results:

  • Phage display enables rapid isolation of high-affinity ligands.
  • Applications include identifying enzyme inhibitors, receptor modulators, and interaction mapping.
  • Isolated ligands are valuable for therapeutic target validation, drug design, and vaccine development.

Conclusions:

  • Phage display is a powerful and adaptable technology with broad applications.
  • Ongoing innovations suggest a promising future for phage display in scientific research and development.
  • The technology facilitates efficient identification of specific molecular interactions and therapeutic leads.