US5502273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyhydroxy alkanoate in plants
Assignee: Yield10 Bioscience Inc
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Filing: 1994-09-28
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Granted: 1996-03-26
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Expires: 2014-09-28
Abstract
Abstract A plant which produces polyhydroxyalkanoate polymer has a recombinant genome which contains one or more than one of the genes specifying enzymes critical to the polyhydroxyalkanoate biosynthetic pathway which occurs in certain micro-organisms such as Alcaligenes eutrophus which naturally produce same. The plant species is preferably an oil-producing plant.
Inventors
- 👤 Simon W. J. Bright
- 👤 David Byrom
- 👤 Philip A. Fentem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:23
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0006; C12N15/00; C12N15/09; C12N15/11; C12N15/52; C12N15/63; C12N15/79; C12N15/82; C12N15/8241; C12N15/8242; C12N15/8243; C12N9/10; C12N9/1025; C12N9/1029; C12P; C12P7/00; C12P7/62; C12P7/625; C07; C07K; C07K2319/00; C07K2319/01; C07K2319/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
62 words
A Brassica napus plant adapted for the production of polyhydroxyalkanoate comprising a recombinant genome of a Brassica napus plant, which genome contains genes encoding β-ketothiolase, acetoacetyl-Coenzyme A reductase and polyhydroxyalkanoate synthase for catalysing the production of polyhydroxyalkanoate together with gene regulatory sequences, including seed specific gene regulatory sequences directing expression of the said genes to the seed of said Brassica napus plant.
Claim 2
Dependent Claim
62 words
A Brassica napus plant adapted for the production of polyhydroxyalkanoate comprising a recombinant genome of a Brassica napus plant, which genome contains genes encoding β-ketothiolase, acetoacetyl-Coenzyme A reductase and polyhydroxyalkanoate synthase for catalysing the production of polyhydroxyalkanoate together with gene regulatory sequences, including seed specific gene regulatory sequences directing expression of the said genes to the seed of said Brassica napus plant.
Claim 3
Dependent Claim
24 words
A plant according to claim 1 wherein the genes encoding the enzymes necessary for the catalysis of polyhydroxyalkanoate production are isolated from a micro-organism.
Claim 4
Dependent Claim
12 words
A plant according to claim 2 wherein the micro-organism is Alcaligenes eutrophus.
Claim 5
Dependent Claim
16 words
A plant as claimed in claim 1, in which expression is directed to the developing seed.
Claim 6
Dependent Claim
15 words
A plant as claimed in claim 1, in which expression is directed to the embryo.
Claim 7
Dependent Claim
31 words
A plant as claimed in claim 1, in which the said gene regulatory sequences direct expression of the polyhydroxyalkanoate genes to the cytosol or to the mitochondrion or to the plastid.
References Cited (Backward Citations)
WO1991000917A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-26 | 1999-09-25 | 2000-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-26 | 2003-09-25 | 2004-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-26 | 2007-09-25 | 2008-03-26 | $7700.00 | Window Closed / Lapsed |