Methods and compositions for synthesis of long chain poly-unsatu

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435189, 4353201, 4352523, 4352543, 536 232, C12P 764, C12N 1553, C12N 1563

Patent

active

059726644

ABSTRACT:
The present invention relates to a fatty acid .DELTA.5-desaturase able to catalyze the conversion of dihomo-gamma-linolenic acid to arachidonic acid. Nucleic acid sequences encoding a .DELTA.5-desaturase, nucleic acid sequences which hybridize thereto, DNA constructs comprising a .DELTA.5-desaturase gene, and recombinant host microorganism or animal expressing increased levels of a .DELTA.5-desaturase are described. Methods for desaturating a fatty acid at the .DELTA.5 position and for producing arachidonic acid by expressing increased levels of a .DELTA.5 desaturase are disclosed. Fatty acids, and oils containing them, which have been desaturated by a .DELTA.5-desaturase produced by recombinant host microorganisms or animals are provided. Pharmaceutical compositions, infant formulas or dietary supplements containing fatty acids which have been desaturated by a .DELTA.5-desaturase produced by a recombinant host microorganism or animal also are described.

REFERENCES:
patent: 3649295 (1972-03-01), Bernhart
patent: 4058594 (1977-11-01), Williams
patent: 4526793 (1985-07-01), Ingenbleek et al.
patent: 4526902 (1985-07-01), Rubin .
patent: 4614663 (1986-09-01), Rule
patent: 4670285 (1987-06-01), Clandinin et al.
patent: 4843095 (1989-06-01), Rubin
patent: 4920098 (1990-04-01), Cotter et al.
patent: 4938984 (1990-07-01), Traitler et al.
patent: 5057419 (1991-10-01), Martin et al.
patent: 5374657 (1994-12-01), Kyle
patent: 5376541 (1994-12-01), Kawashima et al.
patent: 5407957 (1995-04-01), Klye et al.
patent: 5443974 (1995-08-01), Hitz et al.
patent: 5492938 (1996-02-01), Klye et al.
patent: 5512482 (1996-04-01), Voelker et al.
patent: 5545553 (1996-08-01), Gotschlich
patent: 5550156 (1996-08-01), Kyle
patent: 5552306 (1996-09-01), Thomas et al.
patent: 5614400 (1997-03-01), Cahoon et al.
Michaelson et al. "Isolation of Delta5-fatty acid desaturase gene from Mortierella alpina." J Biol Chem. Jul. 24, 1998;273(30):19055-9.
Smith et al. "The ERG3 Gene in Saccharomyces-Cerevisiae is Required for the Utilization of Respiratory Substrates and in Heme-Deficient Cells" Yeast, Nov. 1, 1993, vol. 9, No. 11, pp. 1177-1187.
Ackman, "Problems in fish oils and concentrates," Canadian Institute of Fisheries Technology, Technical University of Nova Scotia, 189-204, No Date Provided.
Bajpai and Bajpai, "Arachidonic Acid Production by Microorganisms," Biotechnology and Applied Biochemistry 15:1-10 (1992).
Gurr, "Alpha or gamma: what's a double bond position between friends? 1. Gamma-linolenic acid," Lipid Technology (Mar. 1995).
Hodgson, "Advances in vector systems for gene therapy," Ex. Opin. Ther. Patents 5(5):459-468 (1995).
Horrobin, "Medical roles of metabolites of precursor EfA," INFORM 6(4):428-434 (Apr. 1995).
Murata et al., "Biosynthesis of gamma-Linolenic Acid n the Cyanobacterium Spiruline platensis," In: gamma-Linolenic Acid Metabolism and Its Roles in Nutrition and Medicine (Huang and Mills, eds.), pp. 22-32, Access Press, Champain, IL. No Date Provided.
Ratledge, "Single cells oils-have they a biotechnological future?" MB Tech. 11 (Jul. 1995).
Reddy and Thomas, "Expression of a cyanobacterial .DELTA..sup.6 -desaturase gene results in gamma-linolenic acid production in transgenic plants," Nature Biotechnology 14:639-642 (May 1996).
Ward, "Microbial production of long-chain PUFAs," INFORM 6(6);683-688 (Jun. 1995).
"Closer to Mother's Milk," the Gist 61:8-9 (Spring 1995).
"Exciting prospects for stearidonic acid seed oils," Lipid Technology (Nov. 1996).
Cadena D., et al; XP-002076635: "AC C25549", EMBL Database, Jul. 24 (1997).
Covello, P., et al; Functional Expression of the Extraplastidial Arbidopsis thaliana Oleate Desaturase Gene (FAD2) in Saccharomyces cerevisiae, Plant Physiol. vol. 111, pp. 223-226 (1996).
Hillier, L., et al; XP-002076629: The WashU-Merck EST Project, AC W49761, EMBL Database May 30, (1996).
Hillier, L., et al; XP-002076631: The WashU-Merck EST Project, AC W67716, EMBL Database, Jun. 16, (1996).
Hillier, L., et al; XP-002076632: The WashU-Merck EST Project, AC H17219, EMBL Database, Jul. 1, (1995).
Hillier, L., et al; XP-002076633: The WashU-Merck EST Project, AC H19385, EMBL Database, Jul. 24, (1997).
Michaelson, L., et al; XP-002076636: Isolation of a delta 5-Fatty Acid Desaturase Gene from Mortierella alpina, Journal of Biological Chemistry, vol. 273, No. 30, Jul. 24, (1998).
Nathans, J.; XP-002076630: Adult Human Retina cDNA, EMBL database, May 14, (1996).
Spychalla, J., et al; XP-002076628: Identification of an animal w3 fatty acid desaturase by heterologous expression in Arabidopsis, PNAS, vol. 94, No. 4, pp. 1142-1147, Feb. 18, (1997).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods and compositions for synthesis of long chain poly-unsatu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and compositions for synthesis of long chain poly-unsatu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and compositions for synthesis of long chain poly-unsatu will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-762609

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.