1. Stable accumulation of seed storage proteins containing vaccine peptides in transgenic soybean seeds.
- Author
-
Maruyama N, Fujiwara K, Yokoyama K, Cabanos C, Hasegawa H, Takagi K, Nishizawa K, Uki Y, Kawarabayashi T, Shouji M, Ishimoto M, and Terakawa T
- Subjects
- Alzheimer Disease immunology, Alzheimer Disease prevention & control, Alzheimer Vaccines genetics, Alzheimer Vaccines immunology, Amino Acid Sequence, Endoplasmic Reticulum metabolism, Gene Expression, Globulins genetics, Humans, Molecular Sequence Data, Mutagenesis, Insertional, Peptides genetics, Plants, Genetically Modified, Protein Transport, Recombinant Proteins biosynthesis, Recombinant Proteins genetics, Seeds metabolism, Soybean Proteins genetics, Glycine max metabolism, Vaccines, Vacuoles metabolism, Alzheimer Vaccines biosynthesis, Globulins biosynthesis, Peptides immunology, Seeds genetics, Soybean Proteins biosynthesis, Glycine max genetics
- Abstract
There has been a significant increase in the use of transgenic plants for the large-scale production of pharmaceuticals and industrial proteins. Here, we report the stable accumulation of seed storage proteins containing disease vaccine peptides in transgenic soybean seeds. To synthesize vaccine peptides in soybean seeds, we used seed storage proteins as a carrier and a soybean breeding line lacking major seed storage proteins as a host. Vaccine peptides were inserted into the flexible disordered regions in the A1aB1b subunit three-dimensional structure. The A1aB1b subunit containing vaccine peptides in the disordered regions were sorted to the protein storage vacuoles where vaccine peptides are partially cleaved by proteases. In contrast, the endoplasmic reticulum (ER)-retention type of the A1aB1b subunit containing vaccine peptides accumulated in compartments that originated from the ER as an intact pro-form. These results indicate that the ER may be an organelle suitable for the stable accumulation of bioactive peptides using seed storage proteins as carriers., (Copyright © 2014 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF