Patents by Inventor Steffan N. Ho

Steffan N. Ho 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: 20110003385
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands.
    Type: Application
    Filed: January 8, 2010
    Publication date: January 6, 2011
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Publication number: 20090060888
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands.
    Type: Application
    Filed: January 31, 2007
    Publication date: March 5, 2009
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Patent number: 6972193
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: December 6, 2005
    Assignees: Board of Trustees of Leland Stanford Junior University, President and Fellows of Harvard College
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Patent number: 6875571
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: April 5, 2005
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho, William M. Flanagan
  • Publication number: 20030056229
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Application
    Filed: July 7, 1999
    Publication date: March 20, 2003
    Inventors: GERALD R. CRABTREE, JEFFREY P. NORTHROP, STEFFAN N. HO
  • Publication number: 20030049641
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Application
    Filed: January 7, 2002
    Publication date: March 13, 2003
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho, William M. Flanagan
  • Patent number: 6388052
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: May 14, 2002
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6352830
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: March 5, 2002
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho, William M. Flanagan
  • Patent number: 6316418
    Abstract: We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins and disclose methods and materials for using that procedure to regulatably initiate cell-specific apoptosis (programmed cell death) in genetically engineered cells.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: November 13, 2001
    Assignees: Board of Trustees of Leland Stanford Junior University, President and Fellows of Harvard College
    Inventors: Gerald Crabtree, Stuart Schreiber, David Spencer, Thomas Wandless, Peter Belshaw, Steffan N Ho
  • Patent number: 6312899
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: November 6, 2001
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6197925
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: March 6, 2001
    Assignee: Sara Lee Corporation
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6171781
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: January 9, 2001
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6150099
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: November 21, 2000
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6140120
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands. To illustrate the practice of this invention, we have induced: (1) the intracellular aggregation of the cytoplasmic tail of the .xi.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: October 31, 2000
    Assignees: Board of Trustees of Leland Stanford Jr. University, President and Fellows of Harvard College
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Patent number: 6096515
    Abstract: The invention provides novel polypeptides which are associated with the transcription complex NF-AT, polynucleotides encoding such polypeptides, antibodies which are reactive with such polypeptides, polynucleotide hybridization probes and PCR amplification probes for detecting polynucleotides which encode such polypeptides, transgenes which encode such polypeptides, homologous targeting constructs that encode such polypeptides and/or homologously integrate in or near endogenous genes encoding such polypeptides, nonhuman transgenic animals which comprise functionally disrupted endogenous genes that normally encode such polypeptides, and transgenic nonhuman animals which comprise transgenes encoding such polypeptides.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: August 1, 2000
    Assignee: Board of Trustees of the Leland Stanford Junior University
    Inventors: Gerald R. Crabtree, Jeffrey P. Northrop, Steffan N. Ho
  • Patent number: 6063625
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands. To illustrate the practice of this invention, we have induced: (1) the intracellular aggregation of the cytoplasmic tail of the .zeta.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: May 16, 2000
    Assignees: Board of Trustees of Leland S, Stanford, Jr. University, President and Fellows of Harvard College
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Patent number: 6046047
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands. To illustrate the practice of tis invention, we have induced: (1) the intracellular aggregation of the cytoplasmic tail of the .zeta.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: April 4, 2000
    Assignees: Board of Trustees of Leland Stanford Jr. University, President and Fellows of Harvard College
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Peter Belshaw, Steffan N. Ho
  • Patent number: 6043082
    Abstract: Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of cell membrane receptors, transcription factors, vesicle fusion proteins, and other classes of intra- and extracellular proteins. We have developed a general procedure for the regulated (inducible) dimerization or oligomerization of intracellular proteins. In principle, any two target proteins can be induced to associate by treating the cells or organisms that harbor them with cell permeable, synthetic ligands. To illustrate the practice of this invention, we have induced: (1) the intracellular aggregation of the cytoplasmic tail of the .zeta.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: March 28, 2000
    Assignees: Board of Trustees of Leland Stanford Jr. Univ., President & Fellows of Harvard College
    Inventors: Gerald R. Crabtree, Stuart L. Schreiber, David M. Spencer, Thomas J. Wandless, Steffan N. Ho, Peter Belshaw
  • Patent number: 5023171
    Abstract: A method is provided for joining two DNA molecules by first amplifying them by means of polymerase chain reactions (PCR) carried out on each molecule using oligonucleotide primers designed so that the ends of the resultant PCR products contain complementary sequences. When the two PCR products are mixed, denatured and reannealed, the single-stranded DNA strands having the complementary sequences at their 3' ends anneal and then act as primers for each other. Extension of the annealed area by DNA polymerase produces a double-stranded DNA molecule in which the original molecules are spliced together.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: June 11, 1991
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Steffan N. Ho, Robert M. Horton