Transgenic animal research. A researcher testing the purity of a human protein isolated from sheep's milk. The milk came from ewes which had inherited


Transgenic animal research. A researcher testing the purity of a human protein isolated from sheep's milk. The milk came from ewes which had inherited a human gene from a transgenic parent. The gene promotes the ewe's mammary cells to produce alpha-1-antitrypsin (AAT), a human protein. AAT is excreted in the sheep's milk and may later be isolated. In future it may be used in replacement therapy to treat human AAT deficiency, a genetic lung disorder which may lead to fatal emphysema. About 100,000 people suffer from the disorder in Europe and North America. Photographed at Pharmaceutical Proteins Ltd., Scotland.


Size: 3610px × 2480px
Photo credit: © PHILIPPE PLAILLY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aat, alpha-1-antitrypsin, biological, biology, biotechnology, isolation, lab, laboratory, milk, protein, research, science, scientific, sheep, sheeps, transgenic