Mutants and assay system to identify USP/RXR ligands

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

Reexamination Certificate

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C536S023500, C530S350000, C530S858000

Reexamination Certificate

active

10719024

ABSTRACT:
The invention relates to mutant nuclear hormone receptors that encode mutant nuclear hormone receptors, in which particular amino acid residues are substituted with respect to wild type, so as to be able to detect ligand binding to the mutant receptor by either a change in a physical property of the mutant receptor and/or an transcriptional induction of a nuclear hormone receptor construct. The invention also relates to a nuclear hormone receptor response element denoted by the formula YDRXZ comprising a direct repeat (DR) comprising two half sites separated by X nucleic acid bases; wherein Z indicates the presence of at least one DR oriented in either a forward or reverse orientation; wherein Y equals 1 to 8 forward and/or reverse direct repeats; and X equals 1 to about 12.

REFERENCES:
patent: WO 01/71042 (2001-09-01), None
Oro et al. 1990. Nature 347:298-301.
G. Jones, et al. “Juvenile hormone III-dependent conformational changes of the nuclear receptor ultraspiracle” Insect Biochemistry and Molecular Biology 32 (2001), pp. 33-49.
G. Jones, et al. “Ultraspiracle: An Invertebrate nuclear receptor for juvenile hormones” Biochemistry, Proc. Natl. Acad. Sci. USA, vol. 94, pp. 13499-13503, Dec. 1997.
M. Harmon, et al. “Activation of mammalian retinoid X receptors by the insect growth regulator methoprene” Biochemistry, Proc. Natl. Acad. Sci. USA, vol. 92, pp. 6157-6160, Jun. 1995.
Y. Xu, et al. “Activation of transcription through the ligand-binding pocket of the orphan nuclear receptor ultraspiracle” Eur. J. Biochem., 269, pp. 6026-6036 (2002), FEBS.
M. Lezzi, et al. “The Ecdysone Receptor Puzzle” Archives of Insect Biochemistry and Physiology 41: 99-106, Wiley-Liss, Inc. 1999.
H. T. Tran, et al. “Requirement of co-factors for the ligand-mediated activity of the insect ecdysteroid receptor in yeast” Journal of Molecular Endocrinology (2001) 27, pp. 191-209, Society for Endocrinology.
T. Dhadialla, et al. “New Insecticides with Ecdysteroidal and Juvenile Hormone Activity” Annual Review of Entomology, 1998, 43: pp. 545-569.
Egea, et al. “Crystal structure of the human RXRα ligand-binding domain bound to its natural ligand: 9-cisretinoic acid” The EMBO Journal, vol. 19, No. 11, Jun. 1, 2000, pp. 2592-2601.
G. Jones, et al. “Considerations on the structural evidence of a ligand-binding function of ultraspiracle, an insect homolog of vertebrate RXR” Insect Biochemistry and Molecular Biology 30 (2000), pp. 671-679.
I. Billas, et al. “Crystal Structure of the Ligand-binding Domain of the ultraspiracle Protein USP, the Ortholog of Retinoid X Receptors in Insects” The Journal of Biological Chemistry, vol. 276, No. 10, Issue of Mar. 9, pp. 7465-7474, 2001.
G. Clayton, et al. “The structure of the ultraspiracle ligand-binding domain reveals a nuclear receptor locked in an inactive conformation” PNAS, Feb. 13, 2001, vol. 98, No. 4, pp. 1549-1554.
Bogan, et al. “Natural ligands of nuclear receptors have conserved volumes” nature structural biology, vol. 5, No. 8, Aug. 1998, pp. 679-681.
R. Notle, et al. “Ligand binding and co-activator assembly of the peroxisome proliferators-activated receptor-μ” Nature, vol. 395, Sep. 10, 1998, pp. 137-143.
S. Kliewer, et al. “A Prostaglandin JzMetabolite Binds Peroxisome Proliferator-Activated Receptor μ and Promotes Adipocyte Differentiation” Cell, vol. 83, Dec. 1, 1995, pp. 813-819.
A. Brzozowski, et al. “Molecular basis of agonism and antagonism in the oestrogen receptor” Nature, vol. 389, Oct. 16, 1997, pp. 753-758.
A. Shiau, et al. “The Structural Basis of Estrogen Receptor/Coactivator Recognition and the Antagonism of This Interaction by Tamoxifen” Cell, vol. 95, Dec. 23, 1998, pp. 927-937.
R. Watkins, et al. “The Human Nuclear Xenobiotic Receptor PXR: Structural Determinants of Directed Promiscuity” Science, vol. 292, Jun. 22, 2001, pp. 2329-2333.
G. Jones, et al. “Identification of regulatory sequences of juvenile hormone-sensitive and -insensitive serum protein-encoding genes” Gene, 173, pp. 209-214, 1996.
G. Jones, et al. “Transcription of the juvenile hormone estarase gene under the control of both an initiator and AT-rich motif” Biochem. J. (1998) vol. 335 part 1, pp. 79-84.
G. Jones, et al. “Regulation of the juvenile hormone esterase gene by a composite core promoter” Biochemical Journal, vol. 346, Part 1, Feb. 15, 2000, pp. 233-240.
D'Avino, et al. “The moulting hormone ecdysone is able to recognize target elements composed of direct repeats” Molecular and Cellular Endocrinology, vol. 113, No. 1, Aug. 30, 1995, pp. 1-9.
A. Steinmetz, et al. “Binding of Ligands and Activation of Transcription by Nuclear Receptors” Annual Review ofBiophysics and Biomolecular Structure, vol. 30, 2001, pp. 329-359.
S. Kersten, et al. “On the Role of Ligand in Retinoid Signaling: Positive Cooperativity In the Interactions of 9-cisRetinoic Acid with Tetramers of the Retinoid X Receptor” Biochemistry 1995, vol. 34, pp. 14263-14269.
S. Strugnell, et al. “Bacterial Expression and Characterization of the Ligand-Binding Domain of the Vitamin D Receptor” Archives of Biochemistry and Biophysics, vol. 364, Issue 1, pp. 42-52, 1999.
J. Lupisella, et al. “The Ligand Binding Domain of the Human Retinoic Acid Receptor μ is Predominantly α-Hellcal with a Trp Residue in the Ligand Binding Site” The Journal of Biological Chemistry, vol. 270, No. 42, Oct. 20, 1995, pp. 24884-24890.
J. Reid, et al. “Conformational Analysis of the Androgen Receptor Amino-terminal Domain Involved in the Transactivation” The Journal of Biological Chemistry, vol. 277, No. 22, May 31, 2002, pp. 20079-20086.
M. Schimerlik, et al. “Kinetic and Thermodynamic Analysis of 9-cis-Retinoic Acid Binding to Retinoid X Receptor α” Biochemistry, vol. 36, Issue 21, May 1999, pp. 6732-6740.

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