RNA-DNA hybrid molecules of nucleic acid
First Claim
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1. A modular nanostructure comprising(i) a thirty base RNA sequence;
- (ii) a ten base DNA sequencesaid DNA sequence being hybridized to the 10 bases adjacent the 3'"'"' terminus of said RNA sequence to provide an unhybridized 20 base sequence at the 5'"'"' terminus of said RNA sequence, and(iii) a five dT moiety tether connecting the 3'"'"' terminal nucleotide of said RNA sequence to the 5'"'"' terminal nucleotide of said DNA sequence.
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Abstract
Molecules having an RNA block linked to a shorter DNA block is described. The RNA and DNA blocks are complementary to accommodate formation of fold-back molecules having a 3'"'"' hydroxyl on the DNA block and an overhanging RNA strand at the end of a short DNA-RNA hybrid.
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Citations
20 Claims
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1. A modular nanostructure comprising
(i) a thirty base RNA sequence; -
(ii) a ten base DNA sequence said DNA sequence being hybridized to the 10 bases adjacent the 3'"'"' terminus of said RNA sequence to provide an unhybridized 20 base sequence at the 5'"'"' terminus of said RNA sequence, and (iii) a five dT moiety tether connecting the 3'"'"' terminal nucleotide of said RNA sequence to the 5'"'"' terminal nucleotide of said DNA sequence. - View Dependent Claims (2, 3, 4, 5, 12, 13)
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6. A molecule having the schematic formula:
- ##STR3## in which R is an RNA sequence of x nucleotides, D is a DNA sequence of y nucleotides, Z is an organic moiety linking the 3'"'"' terminal nucleotide of R with the 5'"'"' terminal nucleotide of D, and the value of x is more than the value of y
a 3'"'"' terminal portion of R adjacent Z being complementary to a 5'"'"' terminal portion of D adjacent Z wherein said 3'"'"' and 5'"'"' terminal portions of R and D hybridize to provide an RNA-DNA hybrid sequence, and an unhybridized 5'"'"' terminal portion of R. - View Dependent Claims (7, 8, 9, 10, 15, 16, 17, 18, 19)
- ##STR3## in which R is an RNA sequence of x nucleotides, D is a DNA sequence of y nucleotides, Z is an organic moiety linking the 3'"'"' terminal nucleotide of R with the 5'"'"' terminal nucleotide of D, and the value of x is more than the value of y
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11. A modular nanostructure consisting of
(i) a thirty base RNA sequence; -
(ii) a ten base DNA sequence said DNA sequence being hybridized to the 10 bases adjacent the 3'"'"' terminus of said RNA sequence to provide an unhybridized 20 base sequence at the 5'"'"' terminus of said RNA sequence, and (iii) a five dT moiety tether connecting the 3'"'"' terminal nucleotide of said RNA sequence to the 5'"'"' terminal nucleotide of said DNA sequence.
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14. A molecule having the schematic formula:
- ##STR4## in which R is an RNA sequence of x nucleotides, D is a DNA sequence of y nucleotides, Z is a sequence of dT residues and the value of X is greater than the value of y and in which a 3'"'"' terminal portion of R adjacent Z is complementary to a 5'"'"' terminal portion of D adjacent Z;
wherein said 3'"'"' and 5'"'"' terminal portions of R and D are hybridized to provide an RNA-DNA hybrid sequence, and an unhybridized 5'"'"' terminal portion of R.
- ##STR4## in which R is an RNA sequence of x nucleotides, D is a DNA sequence of y nucleotides, Z is a sequence of dT residues and the value of X is greater than the value of y and in which a 3'"'"' terminal portion of R adjacent Z is complementary to a 5'"'"' terminal portion of D adjacent Z;
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20. A molecule having the formula:
- ##STR5## in which R is an RNA sequence of x nucleotides, D is a DNA sequence initially of y nucleotides, Z is an organic moiety linking the 3'"'"' terminal nucleotide of R with the 5'"'"' terminal nucleotide of D, and the value of x is more than the value of y;
a 3'"'"' terminal portion of R adjacent Z being complementary to a 5'"'"' terminal portion of D adjacent Z wherein said 3'"'"' and 5'"'"' terminal portions of R and D hybridize to provide an RNA-DNA hybrid sequence, and an unhybridized 5'"'"' terminal portion of R; and in which the 3'"'"' terminal position of D has been extended by reverse transcriptase in the presence of a biotinylated deoxynucleotide precursor so that D is a DNA sequence of x nucleotides and in which the D sequence includes biotinylated nucleotides in the region corresponding to the previously unhybridized portion of the R sequence.
- ##STR5## in which R is an RNA sequence of x nucleotides, D is a DNA sequence initially of y nucleotides, Z is an organic moiety linking the 3'"'"' terminal nucleotide of R with the 5'"'"' terminal nucleotide of D, and the value of x is more than the value of y;
Specification