Methods and applications for efficient genetic suppressor elemen

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4351723, C12Q 168

Patent

active

058112340

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The invention relates to means for suppressing specific gene function in eukaryotic or prokaryotic cells. More particularly the invention relates to the use of expression of DNA sequences, known as genetic suppressor elements, for the purpose of suppressing specific gene function. The invention provides methods for obtaining such genetic suppressor elements, the genetic suppressor elements themselves, and methods for obtaining living cells which bear a gene suppression phenotype.
2. Summary of the Related Art
Functional inactivation of genes through the expression of specific genetic elements comprising all or a part of the gene to be inactivated is known in the art. At least four mechanisms exist by which expression of such specific genetic elements can result in inactivation of their corresponding gene. These are interference with protein function by polypeptides comprising nonfunctional or partly nonfunctional analogs of the protein to be inhibited or a portion thereof, interference with mRNA translation by complementary anti-sense RNA or DNA, destruction of mRNA by anti-sense RNA coupled with ribozymes, and interference with mRNA by RNA sequences homologous to a portion of the mRNA representing an important regulatory sequence.
Herskowitz, Nature 329: 219-222 (1987), reviews the inactivation of genes by interference at the protein level, which is achieved through the expression of specific genetic elements encoding a polypeptide comprising both intact, functional domains of the wild type protein as well as nonfunctional domains of the same wild type protein. Such peptides are known as dominant negative mutant proteins.
Friedman et al., Nature 335: 452-454 (1988), discloses the use of dominant negative mutants derived from HSV-1 VP16 protein by 3' truncation of the VP16 coding sequence to produce cells resistant to herpes virus infection. Baltimore, Nature 335: 395-396 (1988), suggests that the method might be applicable as a therapeutic means for treatment of HIV-infected individuals.
Green et al., Cell 58: 215-223 (1989), discloses inhibition of gene expression driven by an HIV LTR, through the use of dominant negative mutants derived from the HIV-1 Tat protein sequence, using chemical peptide synthesis.
Rimsky et al., Nature 341: 453-456 (1989), discloses inhibition of HTLV-1 and HIV-1 gene expression in an artificial plasmid system, using dominant negative mutants derived from the HTLV-1 Rex transactivator protein by oligonucleotide-mediated mutagenesis of the rex gene.
Trono et al., Cell 59: 113-120 (1989), demonstrates inhibition of HIV-1 replication in a cell culture system, using dominant negative mutants derived from the HIV-1 Gag protein by linker insertional and deletional mutagenesis of the gag gene.
Ransone et al., Proc. Natl. Acad. Sci. USA 87: 3806-3810 (1990), discloses suppression of DNA binding by the cellular Fos-Jun protein complex and suppression of Jun-mediated transcriptional transactivation, using dominant negative mutants derived from Fax and Jun proteins by oligonucleotide-directed substitutional or deletional mutagenesis of the fos and jun genes.
Whitaker-Dowling et al., Virology 175: 358-364 (1990), discloses a cold-adapted strain of influenza A virus which interferes with production of wild-type influenza A virus in mixed infections, apparently by a dominant negative mutant protein mechanism.
Lee et al., J. Bacteriol. 171: 3002-3007 (1989), discloses a genetic system for isolation of dominant negative mutations of the beta subunit of E. coli RNA polymerase obtained by hydroxylamine mutagenesis of the rpoB gene.
Chejanovsky et al., J. Virol. 64: 1764-1730 (1990), discloses inhibition of adeno-associated virus (AAV) replication by a dominant negative mutant protein derived from the AAV Rep protein by oligonucleotide-directed substitutional mutagenesis of the rev gene at a position encoding an amino acid known to be critical to Rep protein function.
Suppression of specific gene function by interference at the RNA level, usi

REFERENCES:
patent: 4753873 (1988-06-01), Beltz et al.
patent: 5240841 (1993-08-01), Johnston et al.
Arya et al., Science, vol. 229, 1985, pp. 69-73.
Gottesman et al., in The Bacteriophage Lambda, A.D. Hershey, Ed., 1971, CSH Laboratory, pp. 113-138.
Herskowitz, Nature, vol. 329, 1987, pp. 219-222.
van der Krol et al., Bio Techniques, vol. 6, 1988, pp. 958-976.
Tsai-Pflugfelder et al., PNAS, vol. 85, 1988, pp. 7177-7181.
Gussow et al., J. Immunol., vol. 139, 1987, pp. 3132-3138.
Srivastava et al., Immunol. Reviews, No. 84, 1985, pp. 93-121.
Baird et al., "Identification, cloning, and characterization of the Escherichia coli sohA gene, a suppressor of the htrA (degP) Null phenotype," Journal of Bacteriology 172(3):1587-1594 (Mar. 1990).
Baltimore et al., Nature 335:395-396 (1988).
Bunell et al., Somat. Cell Mol. Genet. 16:151-162 (1990).
Ch'ng et al., Proc. Natl. Acad. Sci. USA 86:10006-10010 (1989).
Chejanovsky et al., J. Virol. 64:1764-1770 (1990).
Chen et al., "Internal Duplication and Homology with Bacterial Transport Proteins in the mdr1 (P-Glycoprotein) Gene from Multidrug-Resistant Human Cells," Cell 47:381-389 (1986).
Daugherty et al., Gene Anal. Tech. 6:1-16 (1989).
Davis et al., Microbiology Harper and Row, Philadelphia, PA (1980).
Deiss et al., "A genetic tool used to identify thioredoxin as a mediator of a growth inhibitory signal," Science 252:117-252 (Apr. 5, 1991).
Friedman et al., "Expression of a truncated viral trans-activator selectively impedes lytic infection by its cognate virus," Nature 335:452-454 (Sep. 29, 1988).
Green et al., Cell 58:215-223 (1989).
Groger et al., "Directional antisense and sense cDNA cloning using Epstein-Barr virus episomal expression vectors," Gene 81:285-294 (1989).
Gudkov et al., "Isolation of genetic suppressor elements, including resistance to topoisomerase II-interactive cytotoxic drugs, from human topoisomerase II cDNA," Proceedings of the National Academy of Sciences of USA 90(8):3231-3235 (Apr. 15, 1993).
Herskowitz, "Functional inactivation of genes by dominant negative mutations," Nature 329:219-222 (1987).
Holzmayer et al., "Isolation of dominant negative mutants and inhibitory antisense RNA sequences by expression selection of random DNA fragments," Nucleic Acids Research 20(4):711-717 (Feb. 25, 1992).
Keown et al., "Methods for Introducing DNA into Mammalian Cells," Methods in Enzymol. 185:527-536 (1990).
Kerr et al., Eur. J. Biochem. 175:65-73 (1988).
Kidd et al., "Dominant negative mutation in galactosyltransferase created by over-expression of a truncated cDNA," Chemical Abstracts 111(23):152, abstract 200941n (Dec. 4, 1989).
Kosik et al., "The primary structure and analysis of the squid kinesin heavy chain," Journal of Biological Chemistry 265(6):3278-3283 (Feb. 25, 1990).
Kozak and Kabat, "Ping-Pong Amplification of a Retroviral Vector Achieves High-Level Gene Expression: Human Growth Hormone Production," J. Virol 64:3500-3508 (1990).
Lee et al., J. Bacteriol. 171:3002-3007 (1989).
Markowitz et al., "Construction and Use of a Safe and Efficient Amphotorpic Packaging Cell Line," Virology 167:400-406 (1988).
Miller and Rosman, "Improved Retroviral Vectors for Gene Transfer and Expression," Biotechniqes 7:980-986 (1989).
Murphy and Efstatiadis, "Cloning vectors for expression of cDNA libraries in mammalian cell," Proc. Natl. Acad. Sci. USA 84:8277-8281.
Napoli et al., "Introduction of a chimeric chalcone synthase gene into petunia results in reversible co-suppression of homologous genes in trans," The Plant Cell 2(4):279-289 (Apr. 4, 1990).
Nomura et al., Selective cloning of ColE1 DNA initiation sequences using the cloning vector M13.delta.E101, Gene 18:239-246 (1982).
Ohara et al., "One-sided polymerase chain reaction: The amplification of cDNA," Proc. Natl. Acad. Sci. USA 86:5673-5677 (1989).
Patanjali et al., "Construction of a uniform-abundance (normalized) cDNA library," Proc. Natl. Acad. Sci. USA 88:1943-1947 (1991).
Patterson et al., "Suicide Selection of Mammalian Cell Mutants," Methods E

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods and applications for efficient genetic suppressor elemen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and applications for efficient genetic suppressor elemen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and applications for efficient genetic suppressor elemen will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1620966

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.