Gene of rice dihydrodipicolinate synthase and dna relating to the same
CA 2330839 A1 · Owner: Hasegawa, Hisakazu · Inventors: Terakawa, Teruhiko; Hasegawa, Hisakazu; Yamaguchi, Masanori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
DNA sequences capable of encoding an enzyme protein functioning as a rice dihydrodipicolinate synthase (DHDPS). An example of the above DNA sequences is one having the base sequence represented by SEQ ID NO:1 in the Sequence Listing. Moreover, a DNA having the base sequence represented by SEQ ID NO:5 in the Sequence Listing and one having the base sequence represented by SEQ ID NO:7 each capable of encoding the protein with a DHDPS activity are obtained. By culturing vegetable cells having, transferred thereinto a vector which , carries a DNA fragment having such a DNA integrated into the downstream of a promoter, a transformed plant with a high lysine content can be regenerated.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 17, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.