Patents by Inventor Ignace Laster

Ignace Laster 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: 20130211808
    Abstract: The present invention provides methods and apparatus for analyzing a protein structure.
    Type: Application
    Filed: May 15, 2012
    Publication date: August 15, 2013
    Applicant: Lonza Biologics plc
    Inventors: Johan DESMET, Ignace LASTERS, Dominique VLIEGHE, Carlo BOUTTON, Philippe STAS
  • Publication number: 20130013279
    Abstract: The present invention provides methods and apparatus for analyzing a protein structure.
    Type: Application
    Filed: May 15, 2012
    Publication date: January 10, 2013
    Applicant: Lonza Biologics plc
    Inventors: Johan Desmet, Ignace Lasters, Dominique Vlieghe, Carlo Boutton, Philippe Stas
  • Publication number: 20120278054
    Abstract: The present invention is related to a quantitative structure-based affinity scoring method for peptide/protein complexes. More specifically, the present invention comprises a method that operates on the basis of a highly specific force field function (e.g. CHARMM) that is applied to all-atom structural representations of peptide/receptor complexes. Peptide side-chain contributions to total affinity are scored after detailed rotameric sampling followed by controlled energy refinement. The method of the invention further comprises a de novo approach to estimate dehydration energies from the simulation of individual amino acids in a solvent box filled with explicit water molecules and applying the same force field function as used to evaluate peptide/receptor complex interactions.
    Type: Application
    Filed: October 11, 2011
    Publication date: November 1, 2012
    Applicant: Lonza Biologics plc
    Inventors: Johan Desmet, Geert Meersseman, Nathalie Boutonnet, Jurgen Pletinckx, Krista De Clercq, Ignace Lasters
  • Publication number: 20120202247
    Abstract: The present invention relates to a method for structure-based prediction of properties of peptides and peptide analogs in complex with major histocompatibility (MHC) class I and class II molecules. The said properties mainly relate to the three-dimensional structure of an MHC/peptide complex and the binding affinity of a peptide for an MHC receptor. The invention further relates to a computer program and a device therefor. The invention further relates to data produced by a method of the invention. The invention further relates to peptides and peptide analogs predicted to bind to target-MHC molecules. The present invention thus relates to the field of immunology, with possible applications in manufacture of vaccinates, de-immunization of proteins, and manufacture of therapeutic agents, especially immuno-therapeutic agents.
    Type: Application
    Filed: March 27, 2012
    Publication date: August 9, 2012
    Applicant: Algonomics N.V.
    Inventors: Ignace Lasters, Johan Desmet
  • Patent number: 8229721
    Abstract: The invention provides methods and apparatus for analyzing a protein structure by A) receiving a reference structure (A) forming a three dimensional representation of a protein; B) substituting into the structure of (A) a pattern with amino-acids different from the one of the protein; C) optimizing the conformation of (A) substituted by pattern of (B); D) assessing the energetic compatibility (EC) of the pattern of (B) within the context of the structure of (A) being structurally optimized in (C) with respect to the pattern, by comparing the global energy of the substituted and optimized protein structure with the global energy of the non-substituted reference structure; and E) storing a value reflecting the EC of the pattern together with information related to the structure of the pattern in the form of an energetic compatibility object (ECO).
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: July 24, 2012
    Assignee: Lonza Biologics plc
    Inventors: Johan Desmet, Ignace Lasters, Dominique Vlieghe, Carlo Boutton, Philippe Stas
  • Publication number: 20120020952
    Abstract: The invention relates to a method for producing a mixture comprising two or more different antibodies in a single recombinant host cell. In one embodiment, a mixture of different monovalent antibodies is produced. In another embodiment, a mixture of monovalent and bivalent antibodies is produced. The invention also relates to mixtures of antibodies obtainable by the method of the invention and to light chain sequences that are particularly useful in the method of the invention.
    Type: Application
    Filed: January 26, 2010
    Publication date: January 26, 2012
    Applicant: GENMAB A/S
    Inventors: Paul Parren, Joost J. Neijssen, Aran Frank Labrijn, Janine Schuurman, Tom Vink, Jan Van De Winkel, Stefan Loverix, Ignace Lasters
  • Publication number: 20110245463
    Abstract: The present invention provides methods and apparatus for analyzing a protein structure.
    Type: Application
    Filed: February 3, 2011
    Publication date: October 6, 2011
    Applicant: AlgoNomics N.V.
    Inventors: JOHAN DESMET, IGNACE LASTERS, DOMINIQUE VLIEGHE, CARLO BOUTTON, PHILIPPE STAS
  • Publication number: 20110137617
    Abstract: A method for generating information related to the molecular structure of a biomolecule, comprising the steps of: (a) receiving a three-dimensional representation of said molecular structure, comprising a first set of residue portions and a template; and (b) modifying the representation of step (a) by at least one optimization cycle.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Inventors: Johan DESMET, Ignace Lasters, Dominique Vlieghe, Carlo Boutton, Philippe Stas, Jan Spriet
  • Publication number: 20100305304
    Abstract: The present invention is related to a non-natural, thermodynamically stable, proteinaceous scaffold consisting of three non-covalently associated peptides, wherein each peptide sequence comprises less than fifty amino acid residues and wherein at least 50% of the said residues are substitutable amino acids into at least ten different amino acid residue types. The present invention is further related to a non-natural, triple-stranded, parallel alpha-helical coiled coil scaffold wherein each of the three constituting peptide sequences comprise between 2 and 7 consecutive heptad repeats, wherein at least 50% of the core residues are isoleucines, wherein all non-core residues are alanines, and wherein the constituting peptide sequences remain associated under physical conditions that are significantly different from physiological conditions.
    Type: Application
    Filed: September 8, 2008
    Publication date: December 2, 2010
    Applicant: Complix NV
    Inventors: Johan Desmet, Ignace Lasters
  • Publication number: 20100168398
    Abstract: The present invention relates to a method for structure-based prediction of properties of peptides and peptide analogs in complex with major histocompatibility (MHC) class I and class II molecules. The said properties mainly relate to the three-dimensional structure of an MHC/peptide complex and the binding affinity of a peptide for an MHC receptor. The invention further relates to a computer program and a device therefor. The invention further relates to data produced by a method of the invention. The invention further relates to peptides and peptide analogs predicted to bind to target-MHC molecules. The present invention thus relates to the field of immunology, with possible applications in manufacture of vaccinates, de-immunization of proteins, and manufacture of therapeutic agents, especially immunotherapeutic agents.
    Type: Application
    Filed: March 4, 2010
    Publication date: July 1, 2010
    Inventors: Ignace Lasters, Johan Desmet
  • Publication number: 20100099613
    Abstract: The present invention is directed to peptides, and nucleic acids encoding them, derived from the Hepatitis C Virus (HCV). The peptides are those which elicit a CTL and/or HTL response in a host. The invention is also directed to compositions and vaccines for prevention and treatment of HCV infection and diagnostic methods for detection of HCV exposure in patients.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 22, 2010
    Applicants: GENIMMUNE, PHARMEXA INC.
    Inventors: Marie-Ange Buyse, Geert Maertens, Erik Depla, Ignace Lasters, Johan Desmet, Denise Baker, Robert W. Chesnut, Mark Newman, Alessandra Sette, John Sidney, Scott Southwood
  • Patent number: 7702465
    Abstract: The present invention relates to a method for structure-based prediction of properties of peptides and peptide analogs in complex with major histocompatibility (MHC) class I and class II molecules. The properties mainly relate to the three-dimensional structure of an MHC/peptide complex and the binding affinity of a peptide for an MHC receptor. The invention further relates to a computer program and a device therefor. The invention further relates to data produced by a method of the invention. The invention further relates to peptides and peptide analogs predicted to bind to target-MHC molecules. The present invention thus relates to the field of immunology, with possible applications in manufacture of vaccinates, de-immunization of proteins, and manufacture of therapeutic agents, especially immunotherapeutic agents.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: April 20, 2010
    Assignee: Algonomics N.V.
    Inventors: Ignace Lasters, Johan Desmet
  • Publication number: 20080312840
    Abstract: The present invention is related to a quantitative structure-based affinity scoring method for peptide/protein complexes. More specifically, the present invention comprises a method that operates on the basis of a highly specific force field function (e.g. CHARMM) that is applied to all-atom structural representations of peptide/receptor complexes. Peptide side-chain contributions to total affinity are scored after detailed rotameric sampling followed by controlled energy refinement. The method of the invention further comprises a de novo approach to estimate dehydration energies from the simulation of individual amino acids in a solvent box filled with explicit water molecules and applying the same force field function as used to evaluate peptide/receptor complex interactions.
    Type: Application
    Filed: April 21, 2006
    Publication date: December 18, 2008
    Applicant: ALGONONMICS N.V.
    Inventors: Johan Desmet, Geert Meersseman, Nathalie Boutonnet, Jurgen Pletinckx, Krista De Clercq, Ignace Lasters
  • Publication number: 20060111554
    Abstract: The present invention relates to a method for structure-based prediction of properties of peptides and peptide analogs in complex with major histocompatibility (MHC) class I and class II molecules. The said properties mainly relate to the three-dimensional structure of an MHC/peptide complex and the binding affinity of a peptide for an MHC receptor. The invention further relates to a computer program and a device therefor. The invention further relates to data produced by a method of the invention. The invention further relates to peptides and peptide analogs predicted to bind to target-MHC molecules. The present invention thus relates to the field of immunology, with possible applications in manufacture of vaccinates, de-immunization of proteins, and manufacture of therapeutic agents, especially immunotherapeutic agents.
    Type: Application
    Filed: June 10, 2003
    Publication date: May 25, 2006
    Inventors: Ignace Lasters, Johan Desmet
  • Publication number: 20060093617
    Abstract: The present invention is directed to peptides, and nucleic acids encoding them, derived from the Hepatitis C Virus (HCV). The peptides are those which elicit a CTL and/or HTL response in a host. The invention is also directed to compositions and vaccines for prevention and treatment of HCV infection and diagnostic methods for detection of HCV exposure in patients.
    Type: Application
    Filed: May 31, 2005
    Publication date: May 4, 2006
    Applicants: Innogenetics, N.V., EPIMMUNE INC.
    Inventors: Marie-Ange Buyse, Geert Maertens, Erik Depla, Ignace Lasters, Johan Desmet, Denise Baker, Robert Chesnut, Mark Newman, Alessandro Sette, John Sidney, Scott Southwood
  • Publication number: 20050214857
    Abstract: The present invention is related to an isolated polypeptide micro-scaffold displaying immunoglobulin CDR2 or CDR3 polypeptide sequences, comprising a CDR2 or CDR3 polypeptide sequence interconnecting fragments of the adjacent framework polypeptide sequences, which are arranged to form two anti-parallel ?-strands. The present invention is further related to a method to search, select or screen for immunoglobulin CDR2 or CDR3 polypeptide sequences that bind to a given antigen or mixture of antigens, comprising the steps of: Creating a CDR library with the method of claim 13 from the genetic information of an individual or group of individuals; Select a CDR, which binds to said antigen or mixture of antigens.
    Type: Application
    Filed: December 11, 2002
    Publication date: September 29, 2005
    Applicants: Algonomics N.V., ABLYNX N.V.
    Inventors: Ignace Lasters, Jurgen Pletinckx, Nathalie Boutonnet, Marc Lauwereys, Els Beirnaert
  • Publication number: 20040009507
    Abstract: An in vitro method for constructing a concatenated head-to-tail repertoire of target nucleic acid sequences is revealed. In particular, the method relates to cycles of concatenation whereby after a single cycle of concatenation, not more than two identical copies of each target nucleic acid sequence are linked together head-to-tail on the same molecule of DNA. The present method ensures that each molecule of a concatenated repertoire is derived from a single template target sequence of the starting repertoire.
    Type: Application
    Filed: April 11, 2003
    Publication date: January 15, 2004
    Applicant: Domantis, Ltd.
    Inventors: Gregory Paul Winter, Laurent Jespers, Ignace Lasters, Peter Wang
  • Patent number: 5807980
    Abstract: Compounds derived from BPTI which inhibit factor VIIa-TF complex with an inhibition constant of less than 500 nM, their pharmaceutical compositions, and methods of use. Also disclosed are isolated nucleic acid segments encoding for the compounds, vectors comprising the nucleic acid segment and promoter, transformed host cells, and a method for preparing the compounds using transformed host cells.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: September 15, 1998
    Assignee: Corvas International, Inc.
    Inventors: Ignace Lasters, Marc De Maeyer, William Charles Ripka
  • Patent number: 5747449
    Abstract: A compound derived from BPTI which inhibits Factor Xa with an inhibition constant less than 50 nM.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: May 5, 1998
    Assignee: Corvas International, Inc.
    Inventors: Ignace Lasters, Marc De Maeyer, William Charles Ripka
  • Patent number: 5384257
    Abstract: A method for selecting amino acid residues is disclosed which upon replacement will give rise to an enzyme with an altered pH optimum. The method is specific for metalloenzymes which are inactivated at low pH due to the dissociation of the metal ions. The method is based on altering the pK.sub.a of the metal coordinating ligands or altering the K.sub.ass for the metal binding. New glucose isomerases with an altered pH optimum are provided according to this method. These altered properties enable starch degradation to be performed at lower pH values.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: January 24, 1995
    Assignees: Gist-brocades, N.V., Plant Genetics System, NV
    Inventors: Anne-Marie Lambeir, Ignace Lasters, Nadir Mrabet, Wilhelmus J. Quax, Jan M. Van der Laan, Onno Misset