Patents by Inventor Alfredo G. Tomasselli

Alfredo G. Tomasselli 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).

  • Patent number: 7888291
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a ?-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: February 15, 2011
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Patent number: 7803739
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a ?-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: September 28, 2010
    Assignee: Elan Pharmaceuticals, Inc.
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20090053787
    Abstract: The invention provides methods for efficient recombinant expression, refolding, and purification of Beta-site APP cleaving enzyme (BACE) polypeptides. In various aspects, the method includes the steps of expressing a recombinant construct in bacteria, dissolving inclusion bodies with a denaturant at high pH in the presence of a reducing agent, diluting the solubilized BACE polypeptide in an aqueous solution at a temperature of about 1° C. to 15° C., and incubating the diluted sample at a temperature of about 4° C. to 15° C. until the recombinant BACE polypeptide folds into an active enzyme.
    Type: Application
    Filed: February 7, 2007
    Publication date: February 26, 2009
    Inventors: Alfredo G. Tomasselli, Robert L. Heinrikson, Donna J. Paddock, Ana M. Mildner, Thomas L. Emmons
  • Publication number: 20080299596
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a ?-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: March 1, 2007
    Publication date: December 4, 2008
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20080215249
    Abstract: The x-ray crystal structure of human BACE or BACE-like proteins is useful for solving the structure of other molecules or molecular complexes, and identifying and/or designing potential modifiers of human BACE activity.
    Type: Application
    Filed: April 16, 2008
    Publication date: September 4, 2008
    Inventors: Timothy E. Benson, Jim D. Durbin, Thomas L. Emmons, Alfredo G. Tomasselli
  • Patent number: 7384773
    Abstract: The x-ray crystal structure of human BACE or BACE-like proteins is useful for solving the structure of other molecules or molecular complexes, and identifying and/or designing potential modifiers of human BACE activity.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: June 10, 2008
    Assignee: Pfizer Inc
    Inventors: Timothy E. Benson, Jim D. Durbin, Thomas L. Emmons, Alfredo G. Tomasselli
  • Patent number: 7205120
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a ?-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: April 17, 2007
    Assignee: Pharmacia & Upjohn Company
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20040254341
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a &bgr;-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 16, 2004
    Applicant: Pharmacia & Upjohn Company, a Delaware corporation
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20040254342
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a &bgr;-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 16, 2004
    Applicant: Pharmacia & Upjohn Company, a Delaware corporation
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20040253706
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a &bgr;-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 16, 2004
    Applicant: Pharmacia & Upjohn Company, a Delaware corporation
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Publication number: 20040241792
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a &bgr;-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: March 16, 2004
    Publication date: December 2, 2004
    Applicant: Pharmacia & Upjohn Company, a Delaware corporation
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson
  • Patent number: 6653331
    Abstract: The present invention relates to Glutathione S-transferase (GST)/Reduced Glutathione (GSH) as a means for the in-vivo release of a drug that has been conjugated to specific electrophilic moieties via a sulfonamide bond. The drug may be an anticancer agent (or one with other therapeutic properties) carrying a free —NH— which has been derivatized by the attachment of an electrophile containing a moiety, such as p-CN— or p-NO2-pyridinylsulfonyl groups, or p-NO2- or 2,4 dinitrophenylsulfonyl groups, or suitable derivatives thereof, to make a prodrug. Optionally, the sulfonamide moiety may have attached to it a targeting molecule. The present invention also provides Glutathione S-transferase (GST)/Reduced Glutathione (GSH) as a means for the release of a protected amino derivative that has been conjugated to specific electrophilic moieties via a sulfonamide bond.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: November 25, 2003
    Assignee: Pharmacia & Upjohn Company
    Inventors: Zhiyang Zhao, Alfredo G. Tomasselli, Kenneth A. Koeplinger, Tillie Peterson
  • Publication number: 20030109555
    Abstract: The present invention relates to Glutathione S-transferase (GST)/Reduced Glutathione (GSH) as a means for the in-vivo release of a drug that has been conjugated to specific electrophilic moieties via a sulfonamide bond. The drug may be an anticancer agent (or one with other therapeutic properties) carrying a free —NH— which has been derivatized by the attachment of an electrophile containing a moiety, such as p-CN— or p-NO 2-pyridinylsulfonyl groups, or p-NO 2- or 2,4 dinitrophenylsulfonyl groups, or suitable derivatives thereof, to make a prodrug. Optionally, the sulfonamide moiety may have attached to it a targeting molecule. The present invention also provides Glutathione S-transferase (GST)/Reduced Gluthathione (GSH) as a means for the release of a protected amino derivative that has been conjugated to specific electrophilic moieties via a sulfonamide bond.
    Type: Application
    Filed: March 17, 1999
    Publication date: June 12, 2003
    Inventors: ZHIYANG ZHAO, ALFREDO G. TOMASSELLI, KENNETH A. KOEPLINGER, TILLIE PETERSON
  • Publication number: 20030017991
    Abstract: The present invention is directed to novel substrates for Hu-Asp. More particularly, the invention provides peptide substrates and fusion polypeptide substrates comprising a &bgr;-secretase cleavage site. Methods and compositions for making and using the peptides are disclosed.
    Type: Application
    Filed: July 19, 2001
    Publication date: January 23, 2003
    Inventors: Riqiang Yan, Alfredo G. Tomasselli, Mark E. Gurney, Thomas L. Emmons, Michael Jerome Bienkowski, Robert L. Heinrikson