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. 1990 Nov;94(3):970–979. doi: 10.1104/pp.94.3.970

Stable Accumulation of Modified 2S Albumin Seed Storage Proteins with Higher Methionine Contents in Transgenic Plants 1

Ann De Clercq 1,2, Martine Vandewiele 1,2, Jozef Van Damme 1,2, Philippe Guerche 1,2,2, Marc Van Montagu 1,2, Joël Vandekerckhove 1,2, Enno Krebbers 1,2
PMCID: PMC1077329  PMID: 16667878

Abstract

We present the results of two sets of experiments designed to express high methionine proteins in transgenic seeds in three different plant species. In the first approach, two chimeric genes were constructed in which parts of the Arabidopsis 2S albumin gene 1 (AT2S1) were fused at different positions to a Brazil nut 2S albumin cDNA clone. Brazil nut 2S albumin was found to accumulate stably in transgenic Arabidopsis, Brassica napus, and tobacco seeds. In the second approach, methionine-enriched AT2S1 genes were constructed by deleting sequences encoding a region of the protein which is not highly conserved among 2S albumins of different species and replacing them with methioninerich sequences. Introduction of the modified AT2S1 genes into three different plant species resulted in the accumulation of the methionine-enriched 2S albumins in all three species at levels reaching 1 to 2% of the total high salt-extractable seed protein.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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