Method for producing high methionine corn seeds

Details Method for producing high methionine corn seeds Method for producing high methionine corn seeds

2005-02-01

2005-02-01

Mehta, Ashwin (Department: 1638)

Multicellular living organisms and unmodified parts thereof and

Method of introducing a polynucleotide molecule into or...

C435S468000, C800S287000

Reexamination Certificate

active

06849779

ABSTRACT:
The present invention provides novel DNA constructs encoding high methionine zein proteins, the expression of which is not negatively regulated by the dzr1 regulatory protein. The constructs of the invention comprise a δ-zein coding region operably linked to a promoter and a 3′ UTR which has been modified so as to be devoid of any binding sites for the dzr1 regulatory protein. Preferably, the entire 3′ UTR is replaced by a heterologous sequence that does not contain any dzr1 binding sites. Transgenic corn plants comprising the DNA constructs of the invention are also provided. These plants consistently produce high methionine corn seeds.

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