Patents by Inventor Johan Thevelein

Johan Thevelein 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).

  • Publication number: 20160068848
    Abstract: The disclosure relates to a specific yeast allele of KIN3 that is involved in maximal alcohol accumulation and/or in tolerance to high alcohol levels. Preferably, the alcohol is ethanol. In a preferred embodiment, this specific allele is combined with specific alleles of ADE1 and/or VPS70. More specifically, the disclosure relates to the use of these alleles for the construction and/or selection of high alcohol tolerant yeasts, by stacking of positive alleles, or the selection and construction of low alcohol producing yeasts by stacking of negative alleles.
    Type: Application
    Filed: April 15, 2014
    Publication date: March 10, 2016
    Inventors: Johan Thevelein, Annelies Goovaerts, Françoise Dumortier, Maria Remedios Foulquie-Moreno, Steve Swinnen, Thiago Martins Pais
  • Patent number: 9249420
    Abstract: The present invention relates to recombinant microorganisms comprising an isobutanol producing metabolic pathway and methods of using said recombinant microorganisms to produce isobutanol. In various aspects of the invention, the recombinant microorganisms may comprise one or more modifications resulting in the reduction in the expression and/or activity of an endogenous transporter protein. In various embodiments described herein, the recombinant microorganisms may be microorganisms of the Saccharomyces clade, Crabtree-negative yeast microorganisms, Crabtree-positive yeast microorganisms, post-WGD (whole genome duplication) yeast microorganisms, pre-WGD (whole genome duplication) yeast microorganisms, and non-fermenting yeast microorganisms.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: February 2, 2016
    Assignees: VIB VZW, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Catherine Asleson Dundon, Christopher Smith, Piruz Nahreini, Johan Thevelein, Sofie Saerens
  • Publication number: 20150307833
    Abstract: The disclosure relates to a method for identifying genes that are important determinators of thermotolerance in yeast. The disclosure relates further to genes, identified with the method, especially specific alleles of PRP42 and the use of such alleles to increase thermotolerance. It relates further to recombinant strains transformed with such alleles.
    Type: Application
    Filed: December 12, 2013
    Publication date: October 29, 2015
    Inventors: Johan Thevelein, Maria Remedios Foulquie-Moreno, Yudi Yang
  • Publication number: 20150225747
    Abstract: The disclosure relates to the use of a mutant SSK1 gene encoding a truncated ssk1 protein for the construction of a mutant yeast strain with decreased glycerol production, when compared to the wild-type strain. It relates further to the use of such strains for high-yield bioethanol production, especially in high osmotic media, or on cellulosic hydrolysates, where normal yeast strains do produce a significant amount of glycerol.
    Type: Application
    Filed: September 23, 2013
    Publication date: August 13, 2015
    Inventors: Johan Thevelein, Maria Remedios Foulquie-Moreno, Georg Hubmann
  • Publication number: 20140228224
    Abstract: The present disclosure relates to the identification of a QTL associated with high ethanol tolerance in Saccharomyces spp. More specifically, it relates to specific alleles of MKT1 and APJ1 possibly combined with a specific allele of SWS2 that are important in obtaining a high ethanol tolerance in Saccharomyces spp. It relates further to the use of such alleles in the construction of high ethanol tolerant strains, and the use of these alleles in screening for ethanol tolerance.
    Type: Application
    Filed: June 20, 2012
    Publication date: August 14, 2014
    Inventors: Johan Thevelein, Maria Remedios Foulquié Moreno, Annelies Goovaerts, Steve Swinnen
  • Patent number: 8357835
    Abstract: The present invention relates to the use of trehalose-6-phosphate synthase to modulate plant growth. More specifically, it relates to the use of a class II trehalose-6-phosphate synthase, comprising both a synthase and a phosphatase-like part to modulate plant growth. Preferably, the activity of trehalose-6-phosphate synthase is down-regulated to obtain an increased plant biomass yield.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: January 22, 2013
    Assignees: VIB VZW, Katholieke Universiteit Leuven, K.U.Leuven R&D
    Inventors: Barbara Leyman, Matthew Ramon, Filip Rolland, Johan Thevelein, Patrick van Dijck, Lies Vandesteene
  • Publication number: 20100024066
    Abstract: The present invention relates to the use of trehalose-6-phosphate synthase to modulate plant growth. More specifically, it relates to the use of a class II trehalose-6-phosphate synthase, comprising both a synthase and a phosphatase-like part to modulate plant growth. Preferably, the activity of trehalose-6-phosphate synthase is down-regulated to obtain an increased plant biomass yield.
    Type: Application
    Filed: January 29, 2007
    Publication date: January 28, 2010
    Inventors: Barbara Leyman, Matthew Ramon, Filip Rolland, Johan Thevelein, Patrick van Dijck, Lies Vandesteene
  • Publication number: 20100024067
    Abstract: The present invention concerns a method for enhancing yield-related traits in plants, particularly increasing seed yield, by modulating expression in a plant of a nucleic acid encoding a Class III Trehalose Phosphate Phosphatase (TPP) polypeptide. The present invention also concerns plants having modulated expression of a nucleic acid encoding a Class III TPP polypeptide, which plants have enhanced yield-related traits relative to control plants. The invention further concerns novel Class III TPP nucleic acid and polypeptide sequences. The invention also provides nucleic acid and polypeptide sequences, and constructs comprising the same, which are useful in the methods of the invention.
    Type: Application
    Filed: December 13, 2007
    Publication date: January 28, 2010
    Applicant: CROPDESIGN N.V.
    Inventors: Ana Isabel Sanz Molinero, Lies Vandesteene, Matthew Ramon, Filip Rolland, Patrick Van Dijck, Johan Thevelein
  • Publication number: 20050283852
    Abstract: A method for the preparation of a eukaryotic organism, for example selected from plants, animals and fungi, showing constitutive, inducible and/or organ specific expression of a specifically modified TPS gene, which comprises the steps of providing a TPS gene; designing a suitable modification to the TPS gene by aligning the gene with the corresponding gene of yeast and establishing which part of the gene extends beyond the 5? terminus of the yeast gene; deleting or inactivating a part of the N-terminal region of the TPS gene extending beyond the 5? terminus of the yeast gene, in order to achieve an increased trehalose-6-phosphate synthase activity; cloning the thus modified gene into an expression vector under the control of a constitutive, inducible and/or organ-specific promoter; transforming a plant cell or tissue with the thus obtained expression vector; and regenerating a complete plant from the transformed plant cell or tissue.
    Type: Application
    Filed: February 24, 2005
    Publication date: December 22, 2005
    Inventors: Gabriel De La Fuente, Johan Thevelein, Patrick Duck, Jose Mascorro-Gallardo, Christophe Vaeck
  • Publication number: 20040259229
    Abstract: A method for genetic mapping in eukaryotic organisms is described, comprising: multiple artificial DNA oligonucleotides being introduced in neutral positions into the genome of a single strain of the organism to create an artificially marked strain. This strain contains many specific markers, either composed solely of the inserted oligonucleotides or composed of inserted oligonucleotide(s) and part of the adjacent DNA sequence. The artificially marked strain is crossed with another strain displaying one or more distinct traits. The DNA of segregants from the cross displaying a specific trait is pooled and the presence of the artificial markers in the pooled DNA is detected. The genetic map position of all genes involved in establishing the trait is indicated by a drop in signal intensity for the artificial markers located closest to these genes. The method allows the use of isogenic strains for genetic mapping.
    Type: Application
    Filed: December 18, 2003
    Publication date: December 23, 2004
    Inventors: Johan Thevelein, Patrick Van Dijck, Pingsheng Ma, Francoise Dumortier, Wim Broothaerts
  • Publication number: 20040175831
    Abstract: The invention relates to new eukaryotic strains, preferably yeast strains, having the new fil phenotype, i.e. having the unexpected property of conserving good stress resistance in fermentation and/or growth phase, while conserving normal respiratory and fermentation metabolism on fermentable sugars such as glucose.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 9, 2004
    Applicant: LESAFFRE ET CIE
    Inventors: Johan Thevelein, Marie-Francoise Gorwa, Patrick Van Dijck, Francoise Dumortier, Aloys Teunissen, Katleen Lemaire, Didier Colavizza, Matthias Versele, Annie Loiez
  • Publication number: 20040152066
    Abstract: The present invention relates to the use of proteins facilitating water diffusion or water transport through the cell membrane, preferably aquaporin or aquaporin related proteins to obtain freeze-tolerant eukaryotic cells, preferably yeast cells or plant cells. It relates further to a method for obtaining such cells, and to freeze-tolerant cells, characterized by an enhanced expression level of proteins facilitating water diffusion or water transport through the cell membrane.
    Type: Application
    Filed: October 31, 2003
    Publication date: August 5, 2004
    Inventors: An Tanghe, Johan Thevelein, Patrick Van Dijck
  • Publication number: 20040093645
    Abstract: Transgenic plants or transgenic plant cells having increased stress resistance under environmental or artificial stress conditions are produced by a method comprising the steps of: a) transforming part of a plant or part of a plant cell population with a nucleotide sequence comprising (i) a first nucleotide sequence coding for a eukaryotic environmental or artificial stress resistance protein, or an allele or a homologue thereof, or a catalytically active part of the said protein, the said sequence being operably linked to a promoter, and (ii) one or more restriction sites comprising a second nucleotide sequence, b) applying environmental or artificial stress conditions to the transformed plant or plant cell population obtained in step (a), or its progeny, and c) selecting, from the transformed plant or plant cell population placed under the environmental or artificial stress conditions of step (b), that part of the transformed plant or plant cell population which exhibits an increased stress resistance under
    Type: Application
    Filed: June 5, 2003
    Publication date: May 13, 2004
    Inventors: Johan Thevelein, Barbara Leyman, Patrick Van Dijck, Nelson Avonce, Gabriel Iturriaga