Patents by Inventor Jean-Francois Tomb
Jean-Francois Tomb has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10006058Abstract: The present invention is related to recombinant host cells comprising: (i) at least one deletion, mutation, and/or substitution in an endogenous gene encoding a polypeptide that converts pyruvate to acetaldehyde, acetyl-phosphate or acetyl-CoA; and (ii) a heterologous polynucleotide encoding a polypeptide having phosphoketolase activity. The present invention is also related to recombinant host cells further comprising (iii) a heterologous polynucleotide encoding a polypeptide having phosphotransacetylase activity.Type: GrantFiled: December 12, 2016Date of Patent: June 26, 2018Assignee: Butamax Advanced Biofuels LLCInventors: Michael Dauner, Lori Ann Maggio-Hall, Jean-Francois Tomb
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Patent number: 9944954Abstract: Provided herein are glycerol-3-phosphate dehydrogenase (GPD) enzymes with increased KM for NADH and GPD enzymes with substantially the same affinity for NADH and NADPH and/or are feedback inhibited by glycerol-3-phosphate. Also provided herein are recombinant microorganisms comprising a heterologous gene encoding GPD and a deletion or disruption in an endogenous gene encoding GPD. Also provided are recombinant microorganisms comprising a heterologous gene encoding GPD and a butanol biosynthetic pathway. Further provided are methods of producing butanol comprising providing the recombinant microorganisms described herein and contacting the recombinant microorganism with at least one fermentable carbon substrate under conditions wherein butanol is produced.Type: GrantFiled: August 4, 2016Date of Patent: April 17, 2018Assignee: Butamax Advanced Biofuels LLCInventors: Ritu Bhalla, Gopal K. Chotani, Michael Dauner, Mark J. Nelson, Daniel P. O'Keefe, Caroline M. Peres, Jahnavi Chandra Prasad, Jean-Francois Tomb
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Publication number: 20170088863Abstract: The present invention is related to recombinant host cells comprising: (i) at least one deletion, mutation, and/or substitution in an endogenous gene encoding a polypeptide that converts pyruvate to acetaldehyde, acetyl-phosphate or acetyl-CoA; and (ii) a heterologous polynucleotide encoding a polypeptide having phosphoketolase activity. The present invention is also related to recombinant host cells further comprising (iii) a heterologous polynucleotide encoding a polypeptide having phosphotransacetylase activity.Type: ApplicationFiled: December 12, 2016Publication date: March 30, 2017Inventors: Michael Dauner, Lori Ann Maggio-Hall, Jean-Francois Tomb
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Patent number: 9550999Abstract: The present invention is related to recombinant host cells comprising: (i) at least one deletion, mutation, and/or substitution in an endogenous gene encoding a polypeptide that converts pyruvate to acetaldehyde, acetyl-phosphate, or acetyl-CoA; and (ii) a heterologous polynucleotide encoding a polypeptide having phosphoketolase activity. The present invention is also related to recombinant host cells further comprising (iii) a heterologous polynucleotide encoding a polypeptide having phosphotransacetylase activity.Type: GrantFiled: July 18, 2014Date of Patent: January 24, 2017Assignee: Butamax Advanced Biofuels LLCInventors: Michael Dauner, Lori Ann Maggio-Hall, Jean-Francois Tomb
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Publication number: 20160376613Abstract: Provided herein are glycerol-3-phosphate dehydrogenase (GPD) enzymes with increased KM for NADH and GPD enzymes with substantially the same affinity for NADH and NADPH and/or are feedback inhibited by glycerol-3-phosphate. Also provided herein are recombinant microorganisms comprising a heterologous gene encoding GPD and a deletion or disruption in an endogenous gene encoding GPD. Also provided are recombinant microorganisms comprising a heterologous gene encoding GPD and a butanol biosynthetic pathway. Further provided are methods of producing butanol comprising providing the recombinant microorganisms described herein and contacting the recombinant microorganism with at least one fermentable carbon substrate under conditions wherein butanol is produced.Type: ApplicationFiled: August 4, 2016Publication date: December 29, 2016Inventors: RITU BHALLA, GOPAL K. CHOTANI, MICHAEL DAUNER, MARK J. NELSON, DANIEL P. O'KEEFE, CAROLINE M. PERES, JAHNAVI CHANDRA PRASAD, JEAN-FRANCOIS TOMB
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Publication number: 20160319307Abstract: Ketol-acid reductoisomerase enzymes have been identified that provide high effectiveness in vivo as a step in an isobutanol biosynthetic pathway in bacteria and in yeast. These KARIs are members of a clade identified through molecular phylogenetic analysis called the SLSL Clade.Type: ApplicationFiled: July 14, 2016Publication date: November 3, 2016Inventors: Vasantha Nagarajan, Brian James Paul, Wonchul Suh, Jean-Francois Tomb, Rick W. Ye
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Patent number: 9441250Abstract: Provided herein are glycerol-3-phosphate dehydrogenase (GPD) enzymes with increased KM for NADH and GPD enzymes with substantially the same affinity for NADH and NADPH and/or are feedback inhibited by glycerol-3-phosphate. Also provided herein are recombinant microorganisms comprising a heterologous gene encoding GPD and a deletion or disruption in an endogenous gene encoding GPD. Also provided are recombinant microorganisms comprising a heterologous gene encoding GPD and a butanol biosynthetic pathway. Further provided are methods of producing butanol comprising providing the recombinant microorganisms described herein and contacting the recombinant microorganism with at least one fermentable carbon substrate under conditions wherein butanol is produced.Type: GrantFiled: March 13, 2014Date of Patent: September 13, 2016Assignee: Butamax Advanced Biofuels LLCInventors: Ritu Bhalla, Gopal K Chotani, Michael Dauner, Mark J Nelson, Daniel P O'Keefe, Caroline M Peres, Jahnavi Chandra Prasad, Jean-Francois Tomb
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Publication number: 20160222370Abstract: Yeast strains were engineered that have increased activity of heterologous proteins that require binding of an Fe—S cluster for their activity. The yeast strains have reduced activity of an endogenous Fe—S protein. Activities of heterologous bacterial, fungal or plant 2Fe-2S dihydroxy-acid dehydratases and Fe—S propanediol dehydratase reactivase were increased for increased production of products made using biosynthetic pathways including these enzymes, such as valine, isoleucine, leucine, pantothenic acid (vitamin B5), isobutanol, 2-butanone and 2-butanol.Type: ApplicationFiled: February 5, 2016Publication date: August 4, 2016Inventors: Larry Cameron ANTHONY, Dennis Flint, Wonchul Suh, Rick W. Ye, Steven Cary Rothman, Jean-Francois Tomb
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Publication number: 20160024534Abstract: Yeast strains were engineered that have increased activity of heterologous proteins that require binding of an Fe—S cluster for their activity. The yeast strains have reduced activity of an endogenous Fe—S protein. Activities of heterologous fungal or plant 2Fe-2S dihydroxy-acid dehydratases and Fe—S propanediol dehydratase reactivase were increased for increased production of products made using biosynthetic pathways including these enzymes, such as valine, isoleucine, leucine, pantothenic acid (vitamin B5), isobutanol, 2-butanone and 2-butanol.Type: ApplicationFiled: October 2, 2015Publication date: January 28, 2016Inventors: Larry Cameron Anthony, Lori Ann Maggio-Hall, Steven Cary Rothman, Jean-Francois Tomb
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Publication number: 20160017360Abstract: Methods for modulating plants using optimized Bacterial MFS constructs are disclosed. Also disclosed are nucleotide sequences, constructs, vectors, and modified plant cells, as well as transgenic plants displaying increased seed and/or biomass yield, improved tolerance to abiotic stress such as drought or high plant density, improved nitrogen utilization efficiency, increased ear tissue growth or kernel number.Type: ApplicationFiled: March 5, 2014Publication date: January 21, 2016Inventors: Robel KAHSAY, Dale F. LOUSSAERT, Bo SHEN, Jean-Francois TOMB, Haiyin WANG, Zhenglin HOU
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Patent number: 9206447Abstract: Yeast strains were engineered that have increased activity of heterologous proteins that require binding of an Fe—S cluster for their activity. The yeast strains have reduced activity of an endogenous Fe—S protein. Activities of heterologous fungal or plant 2Fe-2S dihydroxy-acid dehydratases and Fe—S propanediol dehydratase reactivase were increased for increased production of products made using biosynthetic pathways including these enzymes, such as valine, isoleucine, leucine, pantothenic acid (vitamin B5), isobutanol, 2-butanone and 2-butanol.Type: GrantFiled: September 29, 2009Date of Patent: December 8, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Larry Cameron Anthony, Steven Cary Rothman, Jean-Francois Tomb
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Publication number: 20150203876Abstract: Recombinant bacteria capable of metabolizing sucrose are described. The recombinant bacteria comprise in their genome or on at least one recombinant construct, a novel nucleotide sequence encoding a polypeptide having sucrose transporter activity and a nucleotide sequence encoding a polypeptide having sucrose hydrolase activity. These nucleotide sequences are each operably linked to the same or a different promoter. Recombinant bacteria capable of metabolizing sucrose to produce glycerol and/or glycerol-derived products such as 1,3-propanediol and 3-hydroxypropionic acid are also described.Type: ApplicationFiled: April 1, 2015Publication date: July 23, 2015Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Kristin RUEBLING-JASS, Jean-Francois TOMB, Tina K. VAN DYK, Zheng YOU
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Patent number: 9017961Abstract: Recombinant bacteria capable of metabolizing sucrose are described. The recombinant bacteria comprise in their genome or on at least one recombinant construct, a novel nucleotide sequence encoding a polypeptide having sucrose transporter activity and a nucleotide sequence encoding a polypeptide having sucrose hydrolase activity. These nucleotide sequences are each operably linked to the same or a different promoter. Recombinant bacteria capable of metabolizing sucrose to produce glycerol and/or glycerol-derived products such as 1,3-propanediol and 3-hydroxypropionic acid are also described.Type: GrantFiled: March 5, 2012Date of Patent: April 28, 2015Assignee: E.I. du Pont de Nemours and CompanyInventors: Kristin Ruebling-Jass, Jean-Francois Tomb, Tina K Van Dyk, Zheng You
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Patent number: 8980612Abstract: Methods for the fermentive production of four carbon alcohols are provided. Specifically, butanol, preferably 2-butanol is produced by the fermentive growth of a recombinant bacteria expressing a 2-butanol biosynthetic pathway. The recombinant microorganisms and methods of the invention can also be adapted to produce 2-butanone, an intermediate in the 2-butanol biosynthetic pathways disclosed herein.Type: GrantFiled: May 27, 2009Date of Patent: March 17, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Gail K. Donaldson, Andrew C. Eliot, Vasantha Nagarajan, Charles E. Nakamura, Jean-Francois Tomb
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Publication number: 20150064755Abstract: Recombinant bacteria capable of metabolizing sucrose are described. The recombinant bacteria comprise in their genome or on at least one recombinant construct, a novel nucleotide sequence encoding a polypeptide having sucrose transporter activity and a nucleotide sequence encoding a polypeptide having sucrose hydrolase activity. These nucleotide sequences are each operably linked to the same or a different promoter. Recombinant bacteria capable of metabolizing sucrose to produce glycerol and/or glycerol-derived products such as 1,3-propanediol and 3-hydroxypropionic acid are also described.Type: ApplicationFiled: March 5, 2013Publication date: March 5, 2015Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Kristin Ruebling-Jass, Jean-Francois Tomb, Tina K Van Dyk, Zheng You
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Patent number: 8962298Abstract: Methods for the fermentive production of four carbon alcohols are provided. Specifically, butanol, preferably 2-butanol is produced by the fermentive growth of a recombinant bacteria expressing a 2-butanol biosynthetic pathway. The recombinant microorganisms and methods of the invention can also be adapted to produce 2-butanone, an intermediate in the 2-butanol biosynthetic pathways disclosed herein.Type: GrantFiled: April 30, 2007Date of Patent: February 24, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Gail K. Donaldson, Andrew C. Eliot, Vasantha Nagarajan, Charles E. Nakamura, Jean-Francois Tomb
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Patent number: 8951937Abstract: A group of bacterial dihydroxy-acid dehydratases having a [2Fe-2S] cluster was discovered. Bacterial [2Fe-2S] DHADs were expressed as heterologous proteins in bacteria and yeast cells, providing DHAD activity for conversion of 2,3-dihydroxyisovalerate to ?-ketoisovalerate or 2,3-dihydroxymethylvalerate to ?-ketomethylvalerate. Isobutanol and other compounds may be synthesized in pathways that include bacterial [2Fe-2S] DHAD activity.Type: GrantFiled: March 15, 2013Date of Patent: February 10, 2015Assignee: Butamax Advanced Biofuels LLCInventors: Dennis Flint, Steven Cary Rothman, Wonchul Suh, Jean-Francois Tomb, Rick W. Ye
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Publication number: 20140349349Abstract: The present invention is related to recombinant host cells comprising: (i) at least one deletion, mutation, and/or substitution in an endogenous gene encoding a polypeptide that converts pyruvate to acetaldehyde, acetyl-phosphate, or acetyl-CoA; and (ii) a heterologous polynucleotide encoding a polypeptide having phosphoketolase activity. The present invention is also related to recombinant host cells further comprising (iii) a heterologous polynucleotide encoding a polypeptide having phosphotransacetylase activity.Type: ApplicationFiled: July 18, 2014Publication date: November 27, 2014Inventors: MICHAEL DAUNER, Lori Ann Maggio-Hall, Jean-Francois Tomb
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Patent number: 8871488Abstract: The present invention is related to recombinant host cells comprising: (i) at least one deletion, mutation, and/or substitution in an endogenous gene encoding a polypeptide that converts pyruvate to acetaldehyde, acetyl-phosphate or acetyl-CoA; and (ii) a heterologous polynucleotide encoding a polypeptide having phosphoketolase activity. The present invention is also related to recombinant host cells further comprising (iii) a heterologous polynucleotide encoding a polypeptide having phosphotransacetylase activity.Type: GrantFiled: June 15, 2011Date of Patent: October 28, 2014Assignee: Butamax Advanced Biofuels LLCInventors: Michael Dauner, Lori Ann Maggio-Hall, Jean-Francois Tomb
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Publication number: 20140273129Abstract: Provided herein are glycerol-3-phosphate dehydrogenase (GPD) enzymes with increased KM for NADH and GPD enzymes with substantially the same affinity for NADH and NADPH and/or are feedback inhibited by glycerol-3-phosphate. Also provided herein are recombinant microorganisms comprising a heterologous gene encoding GPD and a deletion or disruption in an endogenous gene encoding GPD. Also provided are recombinant microorganisms comprising a heterologous gene encoding GPD and a butanol biosynthetic pathway. Further provided are methods of producing butanol comprising providing the recombinant microorganisms described herein and contacting the recombinant microorganism with at least one fermentable carbon substrate under conditions wherein butanol is produced.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: BUTAMAX ADVANCED BIOFUELS LLCInventors: Ritu Bhalla, Gopal K. Chotani, Michael Dauner, Mark J. Nelson, Daniel P. O'keefe, Caroline M. Peres, Jahnavi Chandra Prasad, Jean-Francois Tomb