Patents by Inventor Guoxin Wu

Guoxin Wu 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).

  • Assays using amyloid precursor proteins with modified ?-secretase cleavage sites to monitor ?-secretase activity
    Patent number: 7196163
    Abstract: Provided are methods of identifying inhibitors of ?-secretase that employ modified ?-secretase substrates. The modified ?-secretase substrates have ?-secretase cleavage sites that are altered from wild type. The amino acid sequences of the altered ?-secretase cleavage sites contain different amino acids in at least one of the positions P2-P1-P1?-P2? of the ?-secretase cleavage site. Many of the modified ?-secretase substrates are more efficient substrates for ?-secretase than are corresponding substrates having wild-type sequences, that is, these modified substrates are more susceptible to enzymatic breakdown by ?-secretase. Recombinant polynucleotide molecules encoding the modified ?-secretase substrates are provided. Antibodies that recognize cleavage products of the modified ?-secretase substrates are provided. Stable cell lines expressing the modified ?-secretase substrates are provided. Transgenic animals expressing the modified ?-secretase substrates are provided.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: March 27, 2007
    Assignee: Merk & Co., Inc.
    Inventors: Daria Jean Hazuda, Elizabeth Chen Dodson, Ming-Tain Lai, Min Xu, Xiao-Ping Shi, Adam J. Simon, Guoxin Wu, Yueming Li, Bruce Register
  • Assays using amyloid precursor proteins with modified beta-secretase cleavage sites to monitor beta-secretase activity
    Publication number: 20030200555
    Abstract: Provided are methods of identifying inhibitors of &bgr;-secretase that employ modified &bgr;-secretase substrates. The modified &bgr;-secretase substrates have &bgr;-secretase cleavage sites that are altered from wild type. The amino acid sequences of the altered &bgr;-secretase cleavage sites contain different amino acids in at least one of the positions P2-P1-P1′-P2′ of the &bgr;-secretase cleavage site. Many of the modified &bgr;-secretase substrates are more efficient substrates for &bgr;-secretase than are corresponding substrates having wild-type sequences, that is, these modified substrates are more susceptible to enzymatic breakdown by &bgr;-secretase. Recombinant polynucleotide molecules encoding the modified &bgr;-secretase substrates are provided. Antibodies that recognize cleavage products of the modified &bgr;-secretase substrates are provided. Stable cell lines expressing the modified &bgr;-secretase substrates are provided.
    Type: Application
    Filed: April 30, 2003
    Publication date: October 23, 2003
    Inventors: Daria Jean Hazuda, Elizabeth Chen Dodson, Ming-Tain Lai, Min Xu, Xiao-Ping Shi, Adam J. Simon, Guoxin Wu, Yueming Li, Robert Bruce Register