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A transgene is a gene that has been transferred naturally, or by any of a number of genetic engineering techniques, from one organism to another. The introduction of a transgene, in a process known as transgenesis , has the potential to change the phenotype of an organism.
Transgene was founded in 1979, on the initiative of Pierre Chambon and Philippe Kourilsky. Jean-Pierre Lecocq was the first Scientific Director of Transgene in 1980. [2] Dr Alessandro Riva, MD, joined Transgene in 2022 as Chairman of the Board of Directors. In May 2023 the board appointed him Chairman adn Chief Executive Officer of the company ...
[54] [55] The A transgene construct consisting of a promoter expressed in the murine parotid gland and the Escherichia coli phytase gene was introduced into the pig embryo by pronuclear microinjection. [56] This caused the pigs to produce the enzyme phytase, which breaks down the indigestible phosphorus, in their saliva.
An event-specific detection searches for the presence of a DNA sequence unique to a certain GMO, usually the junction between the transgene and the organism's original DNA. This approach is ideal to precisely identify a GMO, yet highly similar GMOs will pass completely unnoticed. Event-specific detection is PCR-based.
A transgene is an introduced DNA segment that be used to encode a gene in its host animal. [16] Biologists uses transgenesis as a tool to breed genetically modified, or transgenic animals that provide a wide range of uses. These include the study of developmental genetics, disease processes and gene regulation. [17]
A DNA construct is an artificially-designed segment of DNA borne on a vector that can be used to incorporate genetic material into a target tissue or cell. [1] A DNA construct contains a DNA insert, called a transgene, delivered via a transformation vector which allows the insert sequence to be replicated and/or expressed in the target cell.
Transient expression, more frequently referred to "transient gene expression", is the temporary expression of genes that are expressed for a short time after nucleic acid, most frequently plasmid DNA encoding an expression cassette, has been introduced into eukaryotic cells with a chemical delivery agent like calcium phosphate (CaPi) or polyethyleneimine (PEI). [1]
The transgene that was inserted in the donor somatic cells was designed to express the human clotting factor IX protein in the milk of sheep. This protein plays an essential role in blood coagulation, and deficiency leads to the disease haemophilia B of which treatment requires intravenous infusion of factor IX.