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Recombinant DNA

Recombinant DNA

The Central Dogma

The Central Dogma

The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...

Conservative Site-specific Recombination and Phase Variation

Conservative Site-specific Recombination and Phase Variation

Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...

Microorganisms in Medicine and Therapeutics

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.

Tagging and Fusion Proteins

Tagging and Fusion Proteins

Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...

Exon Recombination

Exon Recombination

The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...

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Related Experiment Video

Updated: Sep 12, 2025

Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration

Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration

Published on: January 22, 2014

Recombinant Proteins: Evolution to their Therapeutic Potential.

Kalyani R Thombre¹, Krishna R Gupta¹, Tejaswini P Masne²

¹Department of Pharmaceutical Chemistry, Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, India.

Protein and Peptide Letters

|August 5, 2025

Summary

Recombinant protein therapies, developed via recombinant DNA technology, are crucial in biomedicine. This review traces their evolution from early insulin to advanced third-generation treatments, highlighting improved safety and efficacy.

Keywords:

FDA-approved recombinant proteins Recombinant proteins cancer treatment.protein production systems recombinant DNA technology therapeutic proteins

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Last Updated: Sep 12, 2025

Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration

Expression, Isolation, and Purification of Soluble and Insoluble Biotinylated Proteins for Nerve Tissue Regeneration

Published on: January 22, 2014

Molecular Evolution of the Tre Recombinase

Molecular Evolution of the Tre Recombinase

Published on: May 29, 2008

A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells

A Convenient and General Expression Platform for the Production of Secreted Proteins from Human Cells

Published on: July 31, 2012

Area of Science:

Biotechnology and Biomedicine
Protein Engineering
Therapeutic Protein Development

Background:

Recombinant proteins, produced via recombinant DNA technology, are vital for obtaining proteins difficult to source naturally.
Over 130 recombinant proteins are approved by the US FDA, underscoring their significance in research and therapy.
Therapeutic proteins, such as monoclonal antibodies, are essential for disease treatment and are produced using systems like bacterial fermentation, yeast cultures, and mammalian cell lines.

Purpose of the Study:

To review the historical development of recombinant protein therapies.
To examine advancements in protein production systems and design techniques.
To highlight the evolving generations of recombinant protein therapeutics.

Main Methods:

Review of scientific literature on recombinant protein development.
Analysis of the progression of recombinant protein therapies through three generations.
Examination of various protein production systems and their applications.
Discussion of design techniques enhancing safety and efficacy.

Main Results:

Recombinant protein therapies have evolved significantly since the 1980s, starting with human insulin.
First-generation proteins focused on natural structures; second-generation improved safety, pharmacokinetics, and specificity.
Third-generation therapies are introducing innovative formulations and delivery systems.
Recombinant proteins are increasingly used in cancer treatment.

Conclusions:

Recombinant protein technology has revolutionized biotechnology and biomedicine.
Continuous advancements in production systems and design are enhancing the safety and effectiveness of protein therapies.
The evolution of recombinant proteins, from basic structures to advanced delivery systems, demonstrates their growing therapeutic potential.