DNA sequences capable of expressing foreign proteins and...

Multicellular living organisms and unmodified parts thereof and – Method of introducing a polynucleotide molecule into or...

Reexamination Certificate

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C800S320200, C800S317000

Reexamination Certificate

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07045681

ABSTRACT:
The present invention relates to a method for producing a gene product by expressing a gene encoding said gene product in angiosperm host cells, which method comprises: a) constructing a vector expressible in angiosperm host cells, said vector comprising a promoter region derived from an amylase gene selected from SBAmyA, SBAmyB, SBAmyC genes or SBAmyD of the sugar beet and a gene encoding a desired gene product; b) transforming a compatible angiosperm host cell with said vector; c) cultivating the resulting transformant host cell to a sugar-depleted or sugar-free condition to promote the expression of said gene under the control of such promoter region; and d) recovering the product of the expressed gene. The sugar beet gene when incorporated into a dicot seed or plant has improved biological properties. The gene sequences and the products thereof are claimed.

REFERENCES:
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patent: 5888789 (1999-03-01), Rodriguez
patent: 6048973 (2000-04-01), Rodriguez
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