Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Reexamination Certificate
2008-09-02
2008-09-02
Saucier, Sandra (Department: 1651)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
C435S041000, C435S072000, C435S105000, C435S183000
Reexamination Certificate
active
10381442
ABSTRACT:
The present invention pertains to a method of converting cellulose to glucose by treating a pretreated lignocellulosic substrate with an enzyme mixture comprising cellulase enzyme and a modified CBHO, wherein the modified CBHI is present in the enzyme mixture at an amount relative to all CBHI-type enzymes from about 15% to about 100% (w/w),depending upon the modified CBHI used. The pretreated lignocellulosic substrate is selected from the group consisting of agricultural residues, residues after starch or sugar removal dedicated ethanol crops forestry products, and pulp and paper products, or combinations thereof.
REFERENCES:
patent: 3932307 (1976-01-01), Setterquist
patent: 4237226 (1980-12-01), Grethlein
patent: 4461648 (1984-07-01), Foody
patent: 4826566 (1989-05-01), Burkart
patent: 4894338 (1990-01-01), Knowles et al.
patent: 5120463 (1992-06-01), Bjork et al.
patent: 5298405 (1994-03-01), Nevalainen et al.
patent: 5730837 (1998-03-01), Black et al.
patent: 5837515 (1998-11-01), Suominen et al.
patent: 5859236 (1999-01-01), Burkart
patent: 5874276 (1999-02-01), Fowler et al.
patent: 5916799 (1999-06-01), Foody et al.
patent: 5922579 (1999-07-01), Fagerstrom et al.
patent: 6184019 (2001-02-01), Miettinen-Oinonen et al.
patent: 6228629 (2001-05-01), Paloheimo et al.
patent: WO 95/16782 (1995-06-01), None
Suurnakki, A., et al. “Trichoderma reeseicellulases and their core domains in the hydrolysis and modification of chemical pulp”, Cellulose. Jun. 2000, 7(22), 189-209.
Kotiranta, P., et al., “Adsorption and Activity ofTrichoderma reeseiCellobiohydrolase I, Endoglucanase II, and the Corresponding Core Proteins on Stem Pretreated Willow,”Appl. Biochem. Biotechnol.81:81-90, Humana Press Inc. (Aug. 1999).
Nidetzky, B., et al., “Cellulose hydrolysis by the cellulases fromTrichoderma reesei: adsorptions of two cellobiohydrolases, two endocellulases and their core proteins on filter paper and their relation to hydrolysis,”Biochem. J.303:817-823, Portland Press On Behalf Of The Biochemical Society (1994).
International Search Report for International Patent Application No. PCT/CA01/01355, mailed Jul. 19, 2002.
Barr, B.K., et al., “Identification of Two Functionally Different Classes of Exocellulases,”Biochemistry 35:586-592, American Chemical Society (1996).
Beldman, G., et al., “Adsorption and Kinetic Behavior of Purified Endoglucanases and Exoglucanases fromTrichoderma viride,”Biotechnol. Bioeng.30:251-257, John Wiley & Sons, Inc. (1987).
Birch, P.R.J., “Targeted differential display of abundantly expressed sequences from the basidiomycetePhanerochaete chrysosporiumwhich contain regions coding for fungal cellulose-binding domains,”Curr. Genet.33:70-76, Springer-Verlag (1998).
Fan, L.T., et al., “Evaluation of Pretreatments for Enzymatic Conversion of Agricultural Residues,”Biotechnol. Bioeng. Symp. No.11:29-45, John Wiley & Sons, Inc. (1981).
Foody, P., et al., “Final Report. Optimization of Steam Explosion Pretreatment,” U.S. Department of Energy Report ET230501, U.S. Department of Energy, Section 9, pp. 201-233; Appendix C, pp. 313-329 (1980).
Gilkes, N.R., et al., “The Adsorption of a Bacterial Cellulase and Its Two Isolated Domains to Crystalline Cellulose,”J. Biol. Chem.267:6743-6749, The American Society for Biochemistry and Molecular Biology (1992).
Grethlein, H.E., and Converse, A.O., “Common Aspects of Acid Prehydrolysis and Steam Explosion for Pretreating Wood,”Biores. Tech.36:77-82, Elsevier Science Publishers Ltd. (1991).
Grohmann, K., et al., “Optimization of Dilute Acid Pretreatment of Biomass,”Biotechnol. Bioeng. Symp. No.15:59-80, John Wiley & Sons Inc. (1985).
Henrissat, B., “Enzymology of Cell-Wall Degradation,”Biochem. Soc. Trans.26:153-156, Portland Press Ltd. (1998).
Henrissat, B., and Bairoch, A., “Updating the sequence-based classification of glycosyl hydrolases,”Biochem. J.316:695-696, Portland Press Ltd. (1996).
Kim, D.W., et al., “Adsorption behaviors of two cellobiohydrolases and their core proteins fromTrichoderma reeseion Avicel PH 101,”Biotechnol. Lett.19:893-897, Chapman & Hall (1997).
Knappert, D., et al., “Partial Acid Hydrolysis of Cellulosic Materials as a Pretreatment for Enzymatic Hydrolysis,”Biotechnol. Bioeng.22:1449-1463, John Wiley & Sons, Inc. (1980).
Kyriacou, A., et al., “Reversibility and Competition in the Adsorption ofTrichoderma reeseiCellulase Components,”Biotechnol. Bioeng.33:631-637, John Wiley & Sons, Inc. (1989).
Limam, F., et al., “Two cellobiohydrolases ofPenicillium occitanismutant Pol 6: Purification and properties,”Enzyme Microb. Technol.17:340-346, Elsevier Science Inc. (1995).
Linder, M., et al., “Identification of functionally important amino acids in the cellulose-binding domain ofTrichoderma reeseicellobiohydrolase I,”Prot. Sci.4:1056-1064, Cambridge University Press (1995).
Linder, M., et al., “Design of a pH-dependent cellulose-binding domain,”FEBS Lett.447:13-16, Elsevier Science B.V. (Mar. 1999).
Parsiegla, G., et al., “Crystal Structures of the Cellulase Cel48F in Complex with Inhibitors and Substrates Give Insights into Its Processive Action,”Biochemistry 39:11238-11246, American Chemical Society (Aug. 2000).
Penttilä, M., et al., “Homology between cellulase genes ofTrichoderma reesei: complete nucleotide sequence of the endoglucanase I gene,”Gene 45:253-263, Elsevier Science Publishers B.V. (1986).
Saloheimo, M., et al., “EGIII, a new endoglucanase fromTrichoderma reesei: the characterization of both gene and enzyme,”Gene 63:11-21, Elsevier Science Publishers B.V. (1988).
Saloheimo, A., et al., “Small endoglucanase fromTrichoderma reesei, cloned by expression in yeast,” inTrichoderma reesei Cellulases and Other Hydrolases. Enzyme structures, Biochemistry, Genetics and Applications, vol. 8, Suominen, P., and Reinikainen, T., eds., Foundation for Biotechnical and Industrial Fermentation Research, Helsinki, Finland, pp. 139-146 (1993).
Schülein, M., “Cellulases ofTrichoderma reesei,” Meth. Enzymol.160:234-242, Academic Press, Inc. (1988).
Schülein, M., “Enzymatic properties of cellulases fromHumicola insolens,” J. Biotechnol.57:71-81, Elsevier Science B.V. (1997).
Shen, H., et al., “Cellobiohydrolase B, a second exo-cellobiohydrolase from the cellulolytic bacteriumCellulomonas fimi,” Biochem. J.311:67-74, Portland Press Ltd. (1995).
Shoemaker, S., et al., “Molecular Cloning of Exo-Cellobiohydrolase I Derived fromTrichoderma reeseiStrain L27,”BioTechnology 1:691-696, Nature Publishing Co. (1983).
Teeri, T., et al., “The Molecular Cloning of the Major Cellulase Gene FromTrichoderma reesei,” Biotechnology 1:696-699, Nature Publishing Co. (1983).
Teeri, T.T., et al., “Homologous domains inTrichoderma reeseicellulolytic enzymes: gene sequence and expression of cellobiohydrolase II,”Gene 51:43-52, Elsevier Science Publishers B.V. (1987).
Teeri, T.T., et al., “Domain function inTrichoderma reeseicellobiohydrolases,”J. Biotechnol.24:169-176, Elsevier Science Publishers B.V. (1992).
Teeri, T.T., and Koivula, A., “Cellulose degradation by native and engineered fungal cellulases,”Carbohydr. Eur.12:28-33, Carbohydrate Research Foundation (1995).
Teeri, T.T., et al., “Trichoderma reeseicellobiohydrolases: why so efficient on crystalline cellulose?”Biochem. Soc. Trans.26:173-178, The Biochemical Society (1998).
Tomme, P., et al., “Studies of the cellulolytic system ofTrichoderma reeseiQM 9414. Analysis of domain function in two cellobiohydrolases by limited proteolysis,”Eur. J. Biochem.170:575-581, Springer International (1988).
Van Tilbeurgh, H., et al., “Limited proteolysis of the cellobiohydrolase I fromTrichoderma reese
Donaldson Jennifer
Foody Brian
Tolan Jeffrey S.
White Theresa C.
Fitzpatrick ,Cella, Harper & Scinto
Iogen Energy Corporation
Kosar Aaron J
Saucier Sandra
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