Oligonucleotides containing 4'-substituted nucleotides
First Claim
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1. An oligonucleotide which comprises at least one nucleotide having the structure:
- ##STR15## wherein;
A is a purine or a pyrimidine;
B and B'"'"' are selected from the group consisting of H, OH, F, OCH3 and SCH3, provided that at least one is H;
D'"'"' is selected from the group consisting of OH, O--P(O)(OH)--OX, O--P(S)(OH)--OX, O--P(S)(SH)--OX and O--P(O)(CH3)--OX, where X is selected from the group consisting of H, a nucleotide, and a protecting group;
E'"'"' is RY, where Y is selected from the group consisting of H and a substituent that renders said nucleotide modifiable, separable or detectable and R is a linking group; and
F is selected from the group consisting of OH and O--P(O)(OH)--OX, where X is selected from the group consisting of H, a nucleotide and a protecting group.
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Reexamination
Accused Products
Abstract
This invention relates to oligonucleotides having at least one nucleotide that is substituted at the 4'"'"' position of the sugar moiety with a substituent other than hydrogen. These oligonucleotides are useful in hybridization assays and as therapeutic agents.
473 Citations
17 Claims
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1. An oligonucleotide which comprises at least one nucleotide having the structure:
- ##STR15## wherein;
A is a purine or a pyrimidine;B and B'"'"' are selected from the group consisting of H, OH, F, OCH3 and SCH3, provided that at least one is H; D'"'"' is selected from the group consisting of OH, O--P(O)(OH)--OX, O--P(S)(OH)--OX, O--P(S)(SH)--OX and O--P(O)(CH3)--OX, where X is selected from the group consisting of H, a nucleotide, and a protecting group; E'"'"' is RY, where Y is selected from the group consisting of H and a substituent that renders said nucleotide modifiable, separable or detectable and R is a linking group; and F is selected from the group consisting of OH and O--P(O)(OH)--OX, where X is selected from the group consisting of H, a nucleotide and a protecting group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- ##STR15## wherein;
- 15. A method of producing an oligonucleotide, which comprises the step of incorporating into said oligonucleotide at least one nucleotide having a substituent other than hydrogen at the 4'"'"' position of the sugar moiety, said substituent producing, or being capable of producing, the alteration of said oligonucleotide.
Specification