Patents Assigned to Amylogene HB
  • Starch branching enzyme II of potato
    Patent number: 6169226
    Abstract: The present invention relates to an amino acid sequence of second starch branching enzyme (SBE II) of potato and a fragment thereof as well as to the corresponding isolated DNA sequences. Furthermore, the invention relates to vectors comprising such an isolated DNA sequence, to processes for production of transgenic potatoes, and to the use of said potatoes for the production of starch. The starch obtained will show a changed pattern of branching of amylopectin as well as a changed amylose/amylopectin ratio.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: January 2, 2001
    Assignee: Amylogene HB
    Inventors: Bo Ek, Jamshid Khosnoodi, Clas-Tomas Larsson, Håkan Larsson, Lars Rask
  • Genetically engineered modification of potato to form amylose-type starch
    Patent number: 5856467
    Abstract: Genetically engineered modification of potato for suppressing formation of amylopectin-type starch is described.The invention describes an antisense construct for inhibiting, to a varying extent, the expression of the gene coding for formation of branching enzyme (BE gene) in potato, said antisense construct comprising a tuber-specific promoter, transcription start and the first exon of the BE gene, inserted in the antisense direction.Also cells, plants, tubers, microtubers and seeds of potato comprising said antisense construct are described.Finally, amylose-type starch, both native and derivatized, derived from the potato that is modified in a genetically engineered manner, as well as a method of suppressing amylopectin formation in potato are described.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 5, 1999
    Assignee: Amylogene HB
    Inventors: Per Hofvander, Per T. Persson, Anneli Tallberg, Olle Wikstrom
  • Genetically engineered modification of potato to obtain amylopectin-type starch
    Patent number: 5824798
    Abstract: Genetically engineered modification of potato for suppressing formation of amylose-type starch is described.Three fragments for insertion in the antisense direction into the potato genome are also described. Moreover, antisense constructs, genes and vectors comprising said antisense fragments are described. Further a promoter for the gene coding for formation of granule-bound starch synthase and also the gene itself are described.Also cells, plants, tubers, microtubers and seeds of potato comprising said antisense construct are described.Finally, amylopectin-type starch, both native and derivatized, derived from the potato that is modified in a genetically engineered manner, as well as a method of suppressing amylose formation in potato are described.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 20, 1998
    Assignee: Amylogene HB
    Inventors: Anneli Tallberg, Per Hofvander, Per T. Persson, Olle Wikstrom