Methods for producing L-isoleucine

Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of...

Reexamination Certificate

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C435S041000, C435S252100, C435S252300, C435S252320, C435S254100

Reexamination Certificate

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06987017

ABSTRACT:
The present invention relates, in general, to the over-production of L-isoleucine by nonhuman organisms. More specifically, the present invention relates to methods for producing L-isoleucine comprising: (a) growing a transformed nonhuman organism under conditions that provide for synthesis of L-isoleucine, wherein the nonhuman organism comprises one or more copies of a transgene comprising at least one nucleotide sequence encoding catabolic threonine dehydratase; wherein the L-isoleucine is synthesized by the transformed nonhuman organism, the synthesis being greater than that of the corresponding non-transformed nonhuman organism; and (b) recovering the L-isoleucine from the culture medium in which the transformed nonhuman organism was cultured.

REFERENCES:
patent: 4649119 (1987-03-01), Sinskey et al.
patent: 4769061 (1988-09-01), Comai
patent: 4940835 (1990-07-01), Shah et al.
patent: 4965197 (1990-10-01), Liebl et al.
patent: 4975374 (1990-12-01), Goodman et al.
patent: 4980285 (1990-12-01), Sano et al.
patent: 5135859 (1992-08-01), Witholt et al.
patent: 5185262 (1993-02-01), Kohama et al.
patent: 5229279 (1993-07-01), Peoples et al.
patent: 5245023 (1993-09-01), Peoples et al.
patent: 5250430 (1993-10-01), Peoples et al.
patent: 5334520 (1994-08-01), Dennis
patent: 5344769 (1994-09-01), Witholt et al.
patent: 5426050 (1995-06-01), Morinaga et al.
patent: 5480794 (1996-01-01), Peoples et al.
patent: 5518907 (1996-05-01), Dennis
patent: 5534432 (1996-07-01), Peoples et al.
patent: 5602321 (1997-02-01), John
patent: 5610041 (1997-03-01), Somerville et al.
patent: 5631150 (1997-05-01), Harkki et al.
patent: 5641660 (1997-06-01), Sinskey et al.
patent: 5650555 (1997-07-01), Somerville et al.
patent: 5661026 (1997-08-01), Peoples et al.
patent: 5663063 (1997-09-01), Peoples et al.
patent: 5707828 (1998-01-01), Sreekrishna et al.
patent: 5759828 (1998-06-01), Tal et al.
patent: 5766925 (1998-06-01), Sugimoto et al.
patent: 5792933 (1998-08-01), Ma
patent: 5811272 (1998-09-01), Snell et al.
patent: 5882883 (1999-03-01), Egel-Mitani et al.
patent: 5888783 (1999-03-01), Tomita et al.
patent: 5891686 (1999-04-01), Dennis et al.
patent: 5919670 (1999-07-01), Okamoto et al.
patent: 5942660 (1999-08-01), Gruys et al.
patent: 5942662 (1999-08-01), Ryals et al.
patent: 5948612 (1999-09-01), Bascomb et al.
patent: 5952553 (1999-09-01), Croughan
patent: 5958745 (1999-09-01), Gruys et al.
patent: 5959179 (1999-09-01), Hinchee et al.
patent: 5990390 (1999-11-01), Lundquist et al.
patent: 5994622 (1999-11-01), Jofuku et al.
patent: 6005168 (1999-12-01), Steiger et al.
patent: 6022729 (2000-02-01), Steinbuchel et al.
patent: 6071998 (2000-06-01), Muller et al.
patent: 6083729 (2000-07-01), Martin et al.
patent: 6091002 (2000-07-01), Asrar et al.
patent: 6117658 (2000-09-01), Dennis et al.
patent: 6175061 (2001-01-01), Bright et al.
patent: 6451564 (2002-09-01), Guillouet et al.
patent: 0 333 033 (1989-09-01), None
patent: 0 242 246 (1992-11-01), None
patent: 0 685 555 (1995-12-01), None
patent: WO 88/09819 (1988-12-01), None
patent: WO 92/12250 (1992-07-01), None
patent: WO 99/02656 (1999-01-01), None
patent: WO 99/41395 (1999-08-01), None
Parekh et al. Improvement of microbial strains and fermentation processes. Appl. Microbiol. Biotechnol. 54: 287-301, 2000.
Bailey. Toward a science of metabolic engineering. Science 252: 1668-1674, 1991.
An, G.-H. et al., “Redirection of Carbon Flux to Lysine in a Recombinant ofCorynebacterium lactofermentumATCC 21799 by Limited Supply of Pantothenate,”J. Biosci. Bioengineering 88:168-172, The Society for Bioscience and Bioengineering, Elsevier Science (Aug. 1999).
Archer, J.A.C. et al., “A C-terminal deletion inCorynebacterium glutamicumhomoserine dehydrogenase abolishes allosteric inhibition by L-threonine,”Gene 107:53-59, Elsevier Science Publishers B.V. (1991).
Archer, J.A.C. and A.J. Sinskey, “The DNA sequence and minimal replicon of theCorynebacterium glutamicumplasmid pSR1: evidence of a common ancestry with plasmids fromC. diphtheriae,” J. Gen. Microbiol. 139:1753-1759, Society for General Microbiology (1993).
Benner, S.A., “Enzyme Kinetics and Molecular Evolution,”Chem . Rev. 89:789-806, American Chemical Society (1989).
Bevan, M.W. and M.-D. Chilton, “T-DNA of the Agrobacterium Ti and Ri Plasmids,”Ann. Rev. Genet. 16:357-384, Annual Reviews Inc. (1982).
Bhadra, R. and P. Datta, “Allosteric Inhibition and Catabolite Inactivation of Purified Biodegradative Threonine Dehydratase ofSalmonella typhimurium,” Biochem. 17:1691-1698, American Chemical Society (1978).
Binding, H., “Regeneration of Plants”, inPlant Protoplasts, CRC Press, Inc., Boca Raton, pp. 21-37, CRC Press, Inc. (1985).
Bradford, M.M., “A Rapid and Sensitive Method for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye Binding,”Anal. Biochem. 72:248-254, Academic Press, Inc. (1976).
Colon, G. et al., “Redirection of Carbon Flux at aCorynebacterium glutamicumThreonine Metabolic Branchpoint by Controlled Enzyme Over-Expression,”Abst. General Meeting Amer. Soc. Microbiol. 93:320, Abstract No. 0-11, American Society for Microbiology (1993).
Colón G.E. et al., “Effect of Inducible thrB Expression on Amino Acid Production inCorynebacterium lactofermentumATCC 21799,”Appl. Environ. Microbiol. 61:74-78, American Society for Microbiology (1995).
Colón G.E. et al., “Production of isoleucine by overexpression of ilvA in aCorynebacterium lactofermentumthreonine producer,”Appl. Microbiol. Biotechnol. 43:482-488, Springer-Verlag (1995).
De Greef, W. et al., “Evaluation of Herbicide Resistance in Transgenic Crops Under Field Conditions,”Bio/Technology 7: 61-64, Nature Publishing Company (1989).
DeBlock, M. et al., “Engineering herbicide resistance in plants by expression of a detoxifying enzyme,”EMBO J. 6: 2513-2518, IRL Press Ltd. (1987).
Duncan, B.K. and B. Weiss, “Specific Mutator Effects of ung (Uracil-DNA Glycosylase) Mutations inEscherichia coli,” J. Bacteriol. 151: 750-755, American Society for Microbiology (1982).
Eggeling, I. et al., “Regulation of acetohydroxy acid synthase inCorynebacterium glutamicumduring fermentation of α-ketobutyrate to L-isoleucine,”Appl. Microbiol. Biotechnol. 25:346-351, Springer-Verlag (1987).
Eggeling, L. et al., “Improved L-lysine yield withCorynebacterium glutamicum: use of dapA resulting in increased flux combined with growth limitation,”Appl. Microbiol. Biotechnol. 49:24-30, Springer-Verlag (Jan. 1998).
Evans, D.A. and J.E. Bravo, “Protoplast Isolation and Culture,” inHandbook of Plant Cell Culture, vol. 1, Techniques for Propagation and Breeding, Evans, D.A. et al., eds., MacMillan Publishing Company, New York, pp. 124-176, Macmillan Publishing Co. (1983).
Feldman, D.A. and P. Datta, “Catabolite Inactivation of Biodegradative Threonine Dehydratase ofEscherichia coli,” Biochem. 14:1760-1767, American Chemical Society (1975).
Follettie, M.T. and A.J. Sinskey, “Recombinant DNA Technology forCorynebacterium glutamicum,” Food Technol. 40:88-94, Institute of Food Technologists (1986).
Follettie, M.T. et al., “Organization and regulation of theCorynebacterium glutamicumhom-thrB and thrC loci,”Mol. Microbiol. 2:53-62, Blackwell Scientific Publications (1988).
Follettie, M.T. et al., “Gene Structure and Expression of theCorynebacterium flavumN13 ask-asd Operon,”J. Bacteriol. 175:4096-4103, American Society for Microbiology (1993).
Goss, T.J. and P.Datta, “Molecular cloning and expression of the biodegradative throenine dehydratase gene (tdc) ofEscherichia coliK12,”Mol. Gen. Genet. 201:308-314, Springer-Verlag (1985).
Gubler, M. et al., “Cloning of the Pyruvate Kinase Gene (pyk) ofCorynebacterium glutamicumand Site-Specific Inactivation of pyk in a Lysine-ProducingCorynebacterium lactofermentumStrain,ȁ

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