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Phage display is also a widely used method for in vitro protein evolution (also called protein engineering). As such, phage display is a useful tool in drug discovery. It is used for finding new ligands (enzyme inhibitors, receptor agonists and antagonists) to target proteins.
In immunology, affinity maturation is the process by which T FH cell-activated B cells produce antibodies with increased affinity for antigen during the course of an immune response. With repeated exposures to the same antigen, a host will produce antibodies of successively greater affinities .
Later improvements of antibody phage display technology enables the display of millions of different antibody fragments on the surface of filamentous phage (better known as antibody phage library) and subsequent selection of highly specific recombinant antibodies to any given target. This technology is widely exploited in pharmaceutical ...
The phage's life cycle is designed in such a way that the transfer is correlated with the activity of interest from the enzyme. This method is advantageous because it requires minimal human intervention for the continuous evolution of the gene.
It involves conjugating the phage library to the desired target. This procedure is termed panning. It utilizes the binding interactions so that only specific peptides presented by bacteriophage are bound to the target. For example, selecting antibody presented by bacteriophage with coated antigen in microtiter plates.
As with other antibody mimetics, the idea behind developing the Affibody molecule was to apply a combinatorial protein engineering approach on a small and robust protein scaffold. The aim was to generate new binders capable of specific binding to different target proteins with almost good affinity, while retaining the favorable folding and ...
Dübel's most important work was, together with Frank Breitling, his contributions to the development of phage display for the production of human antibodies.He co-pioneered in vitro antibody selection technologies, resulting in several inventions including antibody phage display, human antibody libraries ) and antibody libraries with randomised CDRs.
Phage display is a different use of phages involving a library of phages with a variable peptide linked to a surface protein. Each phage genome encodes the variant of the protein displayed on its surface (hence the name), providing a link between the peptide variant and its encoding gene.