Patents Assigned to Ixsys, Inc.
-
Patent number: 6849425Abstract: The invention provides a method of conferring donor CDR binding affinity onto an antibody acceptor variable region framework. The invention also provides a method of simultaneously grafting and optimizing the binding affinity of a variable region binding fragment. A method of optimizing the binding affinity of an antibody variable region is also provided.Type: GrantFiled: November 4, 1999Date of Patent: February 1, 2005Assignee: Ixsys, Inc.Inventors: William D. Huse, Jeffry D. Watkins, Herren Wu
-
Publication number: 20040006213Abstract: The invention provides a Vitaxin antibody and a LM609 grafted antibody exhibiting selective binding affinity &agr;v&bgr;3. The Vitaxin antibody consists of at least one Vitaxin heavy chain polypeptide and at least one Vitaxin light chain polypeptide or functional fragments thereof. Also provided are the Vitaxin heavy and light chain polypeptides and functional fragments. The LM609 grafted antibody consists of at least one CDR grafted heavy chain polypeptide and at least one CDR grafted light chain polypeptide or functional fragment thereof. The invention additionally provides a high affinity LM609 grafted antibody comprising one or more CDRs having at least one amino acid substitution, where the &agr;v&bgr;3 binding activity of the high affinity LM609 grafted antibody is enhanced. Nucleic acids encoding Vitaxin and LM609 grafted heavy and light chains as well as nucleic acids encoding the parental non-human antibody LM609 are additionally provided.Type: ApplicationFiled: June 16, 2003Publication date: January 8, 2004Applicant: Ixsys, Inc.Inventors: William D. Huse, Scott M. Glaser
-
Publication number: 20030208048Abstract: The invention provides a Vitaxin antibody and a LM609 grafted antibody exhibiting selective binding affinity to &agr;v&bgr;3. The Vitaxin antibody consists of at least one Vitaxin heavy chain polypeptide and at least one Vitaxin light chain polypeptide or functional fragments thereof. Also provided are the Vitaxin heavy and light chain polypeptides and functional fragments. The LM609 grafted antibody consists of at least one CDR grafted heavy chain polypeptide and at least one CDR grafted light chain polypeptide or functional fragment thereof. Nucleic acids encoding Vitaxin and LM609 grafted heavy and light chains as well as nucleic acids encoding the parental non-human antibody LM609 are additionally provided. Functional fragments of such encoding nucleic acids are similarly provided. The invention also provides a method of inhibiting a function of &agr;v&bgr;3.Type: ApplicationFiled: May 30, 2003Publication date: November 6, 2003Applicant: Ixsys, Inc.Inventors: William D. Huse, Scott M. Glaser
-
Publication number: 20030120044Abstract: The invention provides a method of conferring donor CDR binding affinity onto an antibody acceptor variable region framework. The invention also provides a method of simultaneously grafting and optimizing the binding affinity of a variable region binding fragment. A method of optimizing the binding affinity of an antibody variable region is also provided.Type: ApplicationFiled: October 18, 2001Publication date: June 26, 2003Applicant: Ixsys, Inc.Inventors: William D. Huse, Jeffry D. Watkins, Herren Wu
-
Patent number: 6531580Abstract: The invention provides enhanced LM609 grafted antibodies exhibiting selective binding affinity to &agr;V&bgr;3, or a functional fragment thereof. The invention also provides nucleic acid molecules encoding the enhanced LM609 grafted antibodies. Additionally provided are methods of inhibiting a function of &agr;V&bgr;3 by contacting &agr;V&bgr;3 with an enhanced LM609 grafted antibody.Type: GrantFiled: June 24, 1999Date of Patent: March 11, 2003Assignee: Ixsys, Inc.Inventors: William D. Huse, Herren Wu
-
Publication number: 20020182214Abstract: The invention provides a method of reducing the proliferation of a neoplastic cell. The method consists of contacting the neoplastic cell with a cytotoxic or cytostatic binding agent specifically reactive with an aberrantly expressed vesicular membrane associated neoplastic cell specific internalizing antigen. The neoplastic cell specific internalizing anitgen can be selected from the group consisting of lamp-2 and limp II families of lysosomal integral membrane proteins. Also provided is a method of intracellular targeting of a cytotoxic or cytostatic agent to a neoplastic cell population.Type: ApplicationFiled: June 18, 2002Publication date: December 5, 2002Applicant: IXSYS, INC.Inventors: William D. Huse, Jeffry D. Watkins
-
Patent number: 6420126Abstract: The invention provides a method of reducing the proliferation of a neoplastic cell. The method consists of contacting the neoplastic cell with a cytotoxic or cytostatic binding agent specifically reactive with an aberrantly expressed vesicular membrane associated neoplastic cell specific internalizing antigen. The neoplastic cell specific internalizing anitgen can be selected from the group consisting of lamp-2 and limp II families of lysosomal integral membrane proteins. Also provided is a method of intracellular targeting of a cytotoxic or cytostatic agent to a neoplastic cell population.Type: GrantFiled: June 8, 1999Date of Patent: July 16, 2002Assignee: Ixsys, Inc.Inventors: William D. Huse, Jeffry D. Watkins
-
Patent number: 6331431Abstract: A high throughput device is provided for simultaneously isolating periplasmic fractions from multiple samples of host cells. The device can be formatted to operate in a series. A method for simultaneously isolating multiple periplasmic fractions is also provided. The method includes (a) providing a high throughput device for isolating periplasmic fractions from multiple samples of host cells having an outer membrane via attaching a removable sample chamber having a membrane chamber wall to a vacuum chamber and applying a vacuum thereto (b) removing media with the vacuum and (c) removing the outer membrane of the host cells (d) attaching a collection chamber to the vacuum chamber and applying a vacuum thereto in order to carry out a collection of the periplasmic fractions that pass through the membrane of the chamber wall from the host cells.Type: GrantFiled: November 28, 1995Date of Patent: December 18, 2001Assignee: Ixsys, Inc.Inventors: Scott M. Glaser, William D. Huse, William P. MacConnell
-
Patent number: 6258530Abstract: A composition of matter comprising a plurality of procaryotic cells containing a diverse population of expressible oligonucleotides operationally linked to expression elements, said expressible oligonucleotides having a desirable bias of random codon sequences.Type: GrantFiled: December 30, 1994Date of Patent: July 10, 2001Assignee: Ixsys, INC.Inventor: William D. Huse
-
Patent number: 5871974Abstract: A composition of matter comprising a plurality of procaryotic cells containing diverse combinations of first and second DNA sequences encoding first and second polypeptides which form a heteromeric receptor exhibiting binding activity toward a preselected molecule, those heteromeric receptors being expressed on the surface of filamentous bacteriophage.Type: GrantFiled: December 2, 1994Date of Patent: February 16, 1999Assignee: Ixsys Inc.Inventor: William D. Huse
-
Patent number: 5862514Abstract: This invention provides a computer-executed method and means for simulating chemical synthesis. The invention concerns the simulation, by a programmed general purpose digital computer, of chemicals that have biological functions, and more specifically, concerns computer-implemented simulation of such chemicals based upon their synthesis and their assayed biological activity.Type: GrantFiled: December 6, 1996Date of Patent: January 19, 1999Assignee: Ixsys, Inc.Inventors: William D. Huse, Zhengxu He, Yifeng Wang
-
Patent number: 5523388Abstract: The invention provides a method of synthesizing oligonucleotides having random tuplets using individual monomers. The steps consist of: (1) sequentially coupling monomers on separate supports to form at least two different tuplets, the coupling is performed in separate reaction vessels; (2) mixing the supports from the reaction vessels; (3) dividing the mixed supports into two or more separate reaction vessels; and (4) repeating steps (1) through (3) one or more times in the reaction vessels of step (3), wherein the last step ends at step (2). Additionally, the oligonucleotides can be cleaved from the supports.Type: GrantFiled: February 27, 1995Date of Patent: June 4, 1996Assignee: Ixsys, Inc.Inventor: William D. Huse
-
Patent number: 5264563Abstract: The invention provides a method of synthesizing oligonucleotides having random tuplets using individual monomers. The steps consist of: (1) sequentially coupling monomers on separate supports to form at least two different tuplets, the coupling is performed in separate reaction vessels; (2) mixing the supports from the reaction vessels; (3) dividing the mixed supports into two or more separate reaction vessels; and (4) repeating steps (1) through (3) one or more times in the reaction vessels of step (3), wherein the last step ends at step (2). Additionally, the oligonucleotides can be cleaved from the supports.Type: GrantFiled: December 14, 1992Date of Patent: November 23, 1993Assignee: Ixsys Inc.Inventor: William D. Huse