Plants which synthesize a modified starch, process for the production thereof and modified starch
AssigneePlantTec Biotechnologie GmbH
InventorsJens Kossmann, Ruth Lorberth
Life of this patent
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Abstract
Nucleic acid molecules are described encoding a starch granule-bound protein as well as methods and recombinant DNA molecules for the production of transgenic plant cells and plants synthesizing a modified starch with modified viscosity properties and a modified phosphate content. Moreover, the plant cells and plants resulting from those methods as well as the starch obtainable therefrom are described.
Claims15
An isolated nucleic acid molecule encoding a protein that is present in plant cells in starch granule-bound form as well as in soluble form and that is involved in the phosphorylation of starch when expressed in plants and/or that increases the phosphorylation of glycogen when expressed in E. coli, selected from the group consisting of:
- (a) a nucleic acid molecule comprising a nucleotide sequence that encodes a protein having the amino acid sequence of SEQ ID NO:
- 2;
- (b) a nucleic acid molecule comprising the coding region of the nucleotide sequence of SEQ ID NO:
- 1;
- (c) a nucleic acid molecule that hybridizes to the nucleic acid molecule of (a) or (b) under stringent conditions;
- (d) a nucleic acid molecule the nucleotide sequence of which is degenerate as a result of the genetic code to a nucleotide sequence of the nucleic acid molecule of (a), (b) or (c);
- and
- (e) a fragment or allelic variant of the nucleic acid molecule of (a), (b), (c) or (d), wherein said fragment is of sufficient length to encode a protein that is present in plant cells in starch granule-bound form as well as in soluble form and that is involved in the phosphorylation of starch when expressed in plants and/or that increases the phosphorylation of glycogen when expressed in E. coli.
An isolated nucleic acid molecule encoding a protein that is present in plant cells in starch granule-bound form as well as in soluble form and that is involved in the phosphorylation of starch when expressed in plants and/or that increases the phosphorylation of glycogen when expressed in E. coli, wherein said nucleic acid molecule exhibits a sequence identity of at least 60% to
- (a) a nucleic acid molecule comprising a nucleotide sequence that encodes a protein having the amino acid sequence of SEQ ID NO:
- 2;
- or
- (b) a nucleic acid molecule comprising the coding region of the nucleotide sequence of SEQ ID NO:
- 1.
Dependencies are inferred from the claim text.