Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase
Reexamination Certificate
2006-04-11
2006-04-11
Rao, Manjunath N. (Department: 1652)
Chemistry: molecular biology and microbiology
Enzyme , proenzyme; compositions thereof; process for...
Hydrolase
C435S004000, C435S006120, C435S069100, C435S183000, C435S200000, C435S252300, C435S252330, C435S320100, C435S325000, C536S023200, C536S023400, C536S023740, C530S350000
Reexamination Certificate
active
07026152
ABSTRACT:
The invention provides compositions and methods for the synergistic degradation of oligosaccharides by endoglucanases. The invention further provides recombinant host cells containing one or more genes encoding endoglucanses which are capable of the synergistic degradation of oligosaccharides. Preferred host cells of the invention are ethanologenic and capable of carrying out simultaneous saccharification and fermentation resulting in the production of ethanol from complex cellulose substrates.
REFERENCES:
patent: 3990944 (1976-11-01), Gauss et al.
patent: 5000000 (1991-03-01), Ingram et al.
patent: 5028539 (1991-07-01), Ingram et al.
patent: 5162516 (1992-11-01), Ingram et al.
patent: 5424202 (1995-06-01), Ingram et al.
patent: 5482846 (1996-01-01), Ingram et al.
patent: 5487989 (1996-01-01), Fowler et al.
patent: 5554520 (1996-09-01), Fowler et al.
patent: 5821093 (1998-10-01), Ingram et al.
patent: WO 98/45425 (1998-10-01), None
patent: WO 00/71729 (2000-11-01), None
patent: WO 00/71729 (2000-11-01), None
Riedel et al. FEMS Microbiology Lett., 1997, vol. 147:239-243.
Zhou et al. J. Industrial Microbiol. Biotechnol., 1999, vol. 22:600-607.
Liebl et al. Microbiology, 1996, vol. 142(9) :2533-2542.
Riedel et al. (Mol. Microbiol., 1998, vol. 28(4):767-775).
Asghari et al. (1996) Ethanol production from hemicellulose hydrolysates of agricultural residues using genetically engineeredEscherichia colistrain KO11.J. Ind. Microbiol. 16:42-47.
Barbosa et al. (1992) Expression of theZymomonas mobilisalcohol dehydrogenase II (adhB) and pyruvate decarboxylase (pdc) genes in Bacillus.Current Microbiol. 28:279-282.
Barras et al. (1994) Extracellular enzymes and pathogenesis of soft-rot Erwinia.Annu. Rev. Phytopathol. 32:201-234.
Beall et al. (1991) Parametric studies of ethanol production from xylose and other sugars by recombinantEscherichia coli. Biotechnol. Bioeng. 38:296-303.
Beall et al. (1992) Conversion of hydrolysates of corn cobs and hulls into ethanol by recombinantEscherichia coliB containing integrated genes for ethanol production.Biotechnol. Lett. 14:857-862.
Beall, et al. (1993) Genetic engineering of soft-rot bacteria for ethanol production from lignocellulose.J. Indust. Microbiol. 11:151-155.
Boyer, M.-H. et al. (1987) Isolation of the gene encoding the major endoglucanase of erwinia chrysanthemi homology between cel genes of two strains of erwinia-chrysanthemi.FEMS Microbiol. Lett. 41(3):351-6.
Boyer, M.-H. et al. (1987) Characterization of a new endoglucanase fromErwinia chrysanthemi. Eur. J. Biochem. 162(2):311-6.
Brooks et al. (1995) Conversion of mixed waste office paper to ehtanol by genetically engineeredKlebsiella oxytocastrain P2.Biotechnol. Progress. 11:619-625.
Burchhardt et al. (1992) Conversion of xylan to ethanol by ethanologenic strains ofEscherichia coliandKlebsiella oxytoca. Appl. Environ. Microbiol. 58:1128-1133.
Cho, K.M. et al. (1999) Novel SSF process for ethanol production from microcrystalline cellulose using the ō-integrated recombinant yeast,Saccharomyces cerevisiae L2612ōGC. J. Microbiol. Biotechnol. 9:340-345.
Conway, T. et al. (1987) Cloning and sequencing of the alcohol dehydrogenase II gene fromZymomonas mobilis. J. Bacteriol. 169(6):2591-7.
Conway et al. (1987) Gene expression inZymomonas mobilis: promoter structure and identification of membrane anchor sequences forming functional lacZ' fusion proteins.J. Bacteriol. 169:2327-2336.
Doran et al. (1993) Fermentation of crystalline cellulose to ethanol byKlebsiella oxytocacontaining chromosomally integratedZymomonas mobilisgenes.Biotechnol. Progress. 9:533-538.
Doran et al. (1994) Saccharification and fermentation of sugar cane bagasse byKlebsiella oxytocaP2 containing chromosomally integrated genes encoding theZymomonas mobilisethanol pathway.Biotechnol. Bioeng. 44:240-247.
Fierobe, H.-P. et al. (1993) Purification and characterization of endoglucanase C fromClostridium cellulolyticum. Catalytic comparison with endoglucanase A.Eur. J. Biochem. 217(2):557-65.
Figurski et al. (1979) Replication of an origin-containing derivative of plasmid RK2 dependent on a plasmid function provided in trans.Proc. Natl. Acad. Sci. USA. 76: 1648-1652.
Grohmann et al. (1994) Fermentation of galacturonic acid and other sugars in orange peel hydrolysates by the ethanologenic strain ofEscherichia coli. Biotechnol. Lett. 16:281-286.
Guimaraes et al. (1992) Ethanol production from starch by recombinantEscherichia colicontaining integrated genes for ethanol production and plasmid genes for saccharification.Biotechnol. Lett. 14:415-420.
Guimaraes et al. (1992) Fermentation of sweet whey by ethanologenicEscherichia coli. Biotechnol. Bioeng. 40:41-45.
Guiseppi, A. et al. (1991) Sequence analysis of the cellulase-encoding celY gene ofErwinia chyrsanthemi: a possible case of interspecies gene transfer.Gene. 106(1):109-14.
Hahn-Hägerdal et al. (1994) An interlaboratory comparison of the performance of ethanol-producing micro-organisms in a xylose-rich acid hydrolysate.Appl. Microbiol. Biotechnol. 41:62-72.
He et al. (1991) ClonedErwinia chrysanthemiout genes enableEscherichia colito selectively secrete a diverse family of heterologous proteins to its milieu.Proc. Natl. Acad. Sci. U.S.A. 88(3):1079-83.
Hueck et al. (1998) Type III protein secretion systems in bacterial pathogens of animals and plants.Microbiol. Mol. Biol. Rev. 62(2):379-433.
Ingram et al. (1987) Genetic engineering of ethanol production inEscherichia coli. Appl. Environ. Microbiol. 53(10):2420-5.
Ingram et al. (1988) Expression of different levels of ethanologenic enzymes from zymomonas mobilis in recombinant strains ofEscherichia coli. Appl. Environ. Microbiol. 54:397-404.
Ingram, et al. (1999) Enteric bacterial catalysts for fuel ethanol production.Biotechnol. Prog. 15:855-866.
Kuhnert, P. et al. (1997) Detection system forEscherichia coli-specific virulence genes: absence of virulence determinants in B and C strains.Appl. Environ. Microbiol. 63(2):703-9.
Lai et al. (1996)Cloning of cellobiose phosphoenolpyrivate-dependent phosphotransferase genes: Functional expression in recombinantEscherichia coliand identification of a putative binding region for disaccharides.Appl. Environ. Microbiol. 63:355-363.
Lindeberg et al. (1992) Analysis of eight out genes in a cluster required for pectic enzyme secretion byErwinia chrysanthemi: sequence comparison with secretion genes from other gram-negative bacteria.J. Bacteriol. 174(22):7385-97.
Lindeberg et al. (1996) Complementation of deletion mutations in a cloned functional cluster ofErwinia chrysanthemiout genes withErwinia carotovoraout homologues reveals OutC and OutD as candidate gatekeepers of species-specific secretion of proteins via the type II pathway.Mol. Microbiol. 20(1):175-90.
Lynd et al. (1991) Fuel ethanol from cellulosic biomass.Science251:1318-1323.
Martinez-Morales, F. et al. (1999) Chromosomal integration of heterologous DNA inEscherichia coliwith precise removal of markers and replicons used during construction.J. Bacteriol. 181(22):7143-8.
Moniruzzaman et al. (1996) Ethanol production from afex pretreated corn fiber by recombinant bacteria.Biotechnol. Lett. 18:985-990.
Moniruzzaman, M. et al. (1997) Extracellular melibiose and fructose are intermediates in raffinose catabolism during fermentation to ethanol by engineered enteric bacteria.J. Bacteriol. 179(6):1880-6.
Moniruzzaman et al. (1998) Ethanol production from dilute acid hydrolysate of rice hulls using genetically engineeredEscherichia coli. Biotechnol. Lett. 20:943-947.
Murata et al. (1990) Characterization of transposon insertion out- mutants ofErwinia carotovorasubsp.carotovoradefective in enzyme export and of a DNA segement that complements out mutations inE. carotovorasubsp.carotovora, E. carotovorasubsp.atroseptica, andErwinia chrysanthemi. J. Bacteriol. 172:2970-2978.
Ohta, K. et al. (1991) Genetic improvement ofEscherichia colifor ethanol production: chromosomal integration ofZymomonas mobilisgenes encoding pyruvate decarboxylase and alcohol dehydrogenase II.Appl. Environ. Microbiol. 57(4):893-900.
Okamoto et al. (1994
Ingram Lonnie O'Neal
Zhou Shengde
Edwards & Angell LLP
Lauro, Esq. Peter C.
Rao Manjunath N.
University of Florida Research Foundation Inc.
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