Protein Bodies in Nature and Biotechnology |
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Authors: | Stefan R Schmidt |
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Institution: | 1. ERA Biotech, Baldiri i Reixac 15-21, 08028, Barcelona, Spain
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Abstract: | Protein bodies are natural structures containing protein aggregates that exist in many organisms ranging from bacteria to mammals and plants. In bacteria they are often a phenomenon associated to over-expression of heterologous proteins. In mammals the so called Russell bodies indicate an accumulation of mutated immune globulins. In plants the protein bodies play a major role as protein storage organelle in seeds. Besides these natural cases, protein bodies can also be artificially induced primarily using self-assembling peptides. Frequently plant derived proteins such as prolamins or their derivatives are used. In some cases the help of an endoplasmatic retention signal is needed to create artificial protein bodies. The biotechnological application of protein bodies offers novel solutions such as the simplification of downstream processing in protein manufacture, the utilisation as particle for immunisation as vaccines or as carrier free self immobilised enzyme particle for many industrial catalytic processes. |
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