Since ancient times, man has been using living organisms for industrial purposes, for example, to make yoghurt and cheese from milk you need bacteria (containing chymosin for cheese). Bread and beer are made from cereals using yeast.

Transgenic animals capable of producing useful recombinant proteins are the latest of biotechnological developments.

“A Transgenic animal has had a gene (or genes) either removed or added to its genome”

Introduced genes, called transgenes, come form a species different from the host organism. By carrying this extra piece of DNA, an animal can synthesise proteins normally produced by other species. This has been possible in bacteria and organisms such as yeast for several decades.

All proteins are synthesised form only 20 different amino acids. The composition of a specific protein is determined by the way different amino acids are linked together in a chain. This sequence is in turn determined by the genes, which provide the template that dictates that every molecule of an individual protein is identical.

This means you could produce theoretically limitless amounts of specific proteins. This means that the gene sequen

Recombinant Protein Source Medical Use

One way round this problem is to introduce mammalian gene sequences into mammalian cells grown in culture. The advantage of this approach is that the mammalian cells chosen should be capable of producing the functional protein.

Some topics in this essay:
Caroline Bowsher, Ed Wraith, Neil Bulleid, Alpha-1-antitrypsin Transgenic, Genetic Modification, EPO Mammalian, Bacteria Replacement, recombinant proteins, amino acid sequence, acid sequence, recombinant protein, amino acid, mammalian cells, amino acids, grown culture, 3-d shape, cells grown culture, capable producing, transgenic animals, Yeast Vaccination, Bacteria Treatment, Professor Neil, neil bulleid 03/2001, professor neil bulleid, changes amino acid,