Chimeric mutational vectors having non-natural nucleotides

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4351723, C07H 2100, C12N 1500

Patent

active

057959722

ABSTRACT:
The application concerns the design and use of small, duplex oligonucleotides and oligomers of nucleotide analogs, termed Chimeric Mutational Vectors (CMV) to effect mutation in a target gene of a eukaryotic cell by homologous recombination between the CMV and the target. The CMV comprises ribonucleotides and deoxyribonucleotides and nucleotide analogs of each (generically "nucleobases"). The application discloses that CMV contain at least two segments of at least 3 ribo-type nucleobases paired to deoxyribo-type nucleobases, which regions flank the region of the CMV that corresponds to the mutation to be introduced into the target gene. The ribo-type nucleobases should preferably be nuclease resistant i.e., other than naturally occurring ribonucleotides. The uses of CMV include gene therapy of genetic diseases and construction of transgenic plants and animals.

REFERENCES:
patent: 4503151 (1985-03-01), Paddock
patent: 4882279 (1989-11-01), Cregg
patent: 5013830 (1991-05-01), Ohtsuka et al.
patent: 5589369 (1996-12-01), Seidman et al.
Shimizu et al., "Oligo(2'-O-methyl)ribonucleotides -Effective probes for duplex DNA", Febs Letters 302:2,155-158 (1992).
Monia et al., "Selective Inhibition of Mutant Ha-ras mRNA Expression by Antisense Oligonucleotides", J Biol Chem 267:28, 19954-19962 (1992).
Roberts, R.W., & Crothers, D.M., "Stability and Properties of Double and Triple Helices: Dramatic Effects of RNA or DNA Backbone Compsition", Science 258:5087, 1463-1466 (1992).
Monia et al., "Evaluation of 2'-Modified Oligonucleotides Containing 2'-Deoxy Gaps as Antisense Inhibitors of Gene Expession", J Biol Chem 268:19,14514-14522 (1993).
Lesnik et al., "Oligodeoxynucleotides Containing 2'-O-Modified Adenosine: Synthesis and Effect on Stability of DNA:RNA Duplexes", Biochemistry 32:7832-7838 (1993).
Shimizu et al., "Effects of 5-Methyl Substitution in 2'-O-Methyloligo-(Pyrimidine) Nucleotides on Triple-Helix Formation", Bio & Med Chem Ltrs 4:8,1029-1032 (1994).
Kmiec et al., "The REC2 Gene Encodes the Homologous Pairing Protein of Ustilago Maydis", Mol. and Cell. Biol. 14:7163 (1994).
Yoon et al., "Targeted Gene Correction of Episomal DNA in Mammalian Cells Mediated by a Chimeric RNA-DNA Oligonucleotide", Proc. Natl. Acad. Sci. USA 93:2071 (Mar. 1996).
Hosono, K., et al., "Properties and Anti-HIV Activity of Hairpin Antisense Oligonucleotides Containing 2'-Methoxynucleosides with Base-Pairing in the Stem Region at the 3'-end", Antiviral Chemistry & Chemotherapy 7:86-93 (Mar. 1996).

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

Chimeric mutational vectors having non-natural nucleotides does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chimeric mutational vectors having non-natural nucleotides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chimeric mutational vectors having non-natural nucleotides will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1115756

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