Patents Assigned to Seneb Biosciences, Inc.
  • Publication number: 20160032342
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Application
    Filed: June 29, 2015
    Publication date: February 4, 2016
    Applicants: Seneb Biosciences, Inc., The University of British Columbia
    Inventors: Karl F. JOHNSON, Shawn DEFREES, Stephen WITHERS, Mark VAUGHAN
  • Patent number: 9068208
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: June 30, 2015
    Assignee: Seneb Biosciences, Inc.
    Inventors: Karl F. Johnson, Shawn Defrees, Stephen Withers, Mark Vaughan
  • Publication number: 20150005233
    Abstract: This invention provides compounds, compositions, and methods for treating hypogly.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 1, 2015
    Applicant: Seneb Biosciences, Inc.
    Inventor: Shawn DeFrees
  • Publication number: 20140147891
    Abstract: The present invention relates to a novel endoglycoceramidase whose hydrolytic activity has been substantially reduced or eliminated, such that the enzyme is useful for synthesis of glycolipids from a monosaccharide or oligosaccharide and a ceramide. More specifically, the endoglycoceramidase is a mutant version of a naturally occurring endoglycoceramidase, preferably comprising a mutation within the active site or the nucleophilic site of the enzyme and more preferably comprising a substitution mutation of the Glu residue within the active site or the nucleophilic site. Also disclosed are a method for generating the mutant endoglycoceramidase and a method for enzymatically synthesizing glycolipids using this mutant enzyme.
    Type: Application
    Filed: July 24, 2013
    Publication date: May 29, 2014
    Applicants: The University of British Columbia University- Industry Liaison Office, Seneb BioSciences, Inc.
    Inventors: Karl F. Johnson, Shawn Defrees, Stephen Withers, Mark Vaughan
  • Publication number: 20120035120
    Abstract: This invention provides compounds, compositions, and methods for treating a disorder selected from cancer, hyperinsulinemia, hypoglycemia, hyperinsulinemia with hypoglycemia, atypical Parkinson's disease, Huntington's disease, multiple systems atrophy, GM3 synthase deficiency, GM2 synthase deficiency or tauopathy.
    Type: Application
    Filed: March 25, 2010
    Publication date: February 9, 2012
    Applicant: SENEB BIOSCIENCES, INC.
    Inventor: Shawn DeFrees
  • Patent number: 7932236
    Abstract: Novel synthetic gangliosides and pharmaceutical compositions containing such synthetic gangliosides are described. Methods of making the novel synthetic ganglioside compounds and compositions as well as their use in the field of neuroprotection is also described.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: April 26, 2011
    Assignee: Seneb Biosciences, Inc.
    Inventors: Shawn DeFrees, Zhi-Guang Wang
  • Patent number: 7888331
    Abstract: Novel synthetic glycosphingolipids and pharmaceutical compositions containing such synthetic glycosphingolipids are described. Methods of making the novel synthetic glycosphingolipid compounds and compositions as well as their use in the field of neuroprotection and cancer treatment is also described.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: February 15, 2011
    Assignee: Seneb Biosciences, Inc.
    Inventors: Shawn A. Defrees, Karl Frank Johnson, Zhi-Guang Wang
  • Patent number: 7842677
    Abstract: Novel synthetic gangliosides and pharmaceutical compositions containing such synthetic gangliosides are described. Methods of making the novel synthetic ganglioside compounds and compositions as well as their use in the field of neuroprotection and cancer treatment is also described.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: November 30, 2010
    Assignee: Seneb Biosciences, Inc.
    Inventors: Shawn DeFrees, Zhi Guang Wang