Detection of nucleic acid sequence differences using coupled ligase detection and polymerase chain reactions
First Claim
1. A method for identifying two or more of a plurality of sequences differing by one or more single-base changes, insertions, deletions, or translocations in a plurality of target nucleotide sequences comprising:
- providing a sample potentially containing one or more target nucleotide sequences with a plurality of sequence differences;
providing one or more of primary oligonucleotide primer groups, each group comprised of one or more primary oligonucleotide primer sets, each set characterized by (a) a-first oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, and (b) a second oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, wherein the first oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion and the second oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion, wherein the oligonucleotide primers in a particular set are suitable for hybridization on complementary strands of a corresponding target nucleotide sequence to permit formation of a polymerase chain reaction product, but have a mismatch which interferes with formation of such a polymerase chain reaction product when hybridized to any other nucleotide sequence present in the sample, and wherein the polymerase chain reaction products in a particular set may be distinguished from other polymerase chain reaction products in the same group or other groups;
providing a polymerase;
blending the sample, the primary oligonucleotide primers, and the polymerase to form a primary polymerase chain reaction mixture;
subjecting the primary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic acid sequences are separated, a hybridization treatment, wherein the target-specific portions of the primary oligonucleotide primers hybridize to the target nucleotide sequences, and an extension treatment, wherein the hybridized primary oligonucleotide primers are extended to form primary extension products complementary to the target nucleotide sequence to which the primary oligonucleotide primer is hybridized;
providing one or a plurality of secondary oligonucleotide primer sets, each set characterized by (a) a first secondary primer containing the same sequence as the 5′
upstream portion of a first primary oligonucleotide primer, and (b) a second secondary primer containing the same sequence as the 5′
upstream portion of a second primary oligonucleotide primer from the same primary oligonucleotide primer set as the first primary oligonucleotide contained by the first secondary primer, wherein a set of secondary oligonucleotide primers may be used to amplify all of the primary extension products in a given group;
blending the primary extension products, the secondary oligonucleotide primers, and the polymerase to form a secondary polymerase chain reaction mixture;
subjecting the secondary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic acid sequences are separated, a hybridization treatment, wherein the secondary oligonucleotide primers hybridize to the primary extension products, an extension treatment, wherein the hybridized secondary oligonucleotide primers are extended to form secondary extension products complementary to the primary extension products;
providing a plurality of oligonucleotide probe sets, each set characterized by (a) a first oligonucleotide probe, having a secondary extension product-specific portion and a detectable reporter label, and (b) a second oligonucleotide probe, having a secondary extension product-specific portion, wherein the oligonucleotide probes in a particular set are suitable for ligation together when hybridized adjacent to one another on a complementary secondary extension product-specific portion, but have a mismatch which interferes with such ligation when hybridized to any other nucleotide sequence present in the sample;
providing a ligase;
blending the secondary extension products, the plurality of oligonucleotide probe sets, and the ligase to form a ligase detection reaction mixture;
subjecting the ligase detection reaction mixture to one or more ligase detection reaction cycles comprising a denaturation treatment, wherein any hybridized oligonucleotides are separated from the secondary extension product, and a hybridization treatment, wherein the oligonucleotide probe sets hybridize at adjacent positions in a base-specific manner to their respective secondary extension products, if present, and ligate to one another to form a ligation product sequence containing (a) the detectable reporter label and (b) the secondary extension product-specific portions connected together, wherein the oligonucleotide probe sets may hybridize to nucleotide sequences other than their respective complementary secondary extension products but do not ligate together due to a presence of one or more mismatches and individually separate during the denaturation treatment; and
detecting the reporter labels of the ligation product sequences, thereby indicating the presence of two or more target nucleotide sequences in the sample.
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Abstract
The present invention relates to the detection of nucleic acid sequence differences using coupled ligase detection reaction and polymerase chain reaction. One aspect of the present invention involves use of a ligase detection reaction coupled to a polymerase chain reaction. Another aspect of the present invention relates to the use of a primary polymerase chain reaction coupled to a secondary polymerase chain reaction coupled to a ligase detection reaction. A third aspect of the present invention involves a primary polymerase chain reaction coupled to a secondary polymerase chain reaction. Such coupling of the ligase detection reaction and the polymerase chain reaction permits multiplex detection of nucleic acid sequence differences.
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Citations
26 Claims
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1. A method for identifying two or more of a plurality of sequences differing by one or more single-base changes, insertions, deletions, or translocations in a plurality of target nucleotide sequences comprising:
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providing a sample potentially containing one or more target nucleotide sequences with a plurality of sequence differences;
providing one or more of primary oligonucleotide primer groups, each group comprised of one or more primary oligonucleotide primer sets, each set characterized by (a) a-first oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, and (b) a second oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, wherein the first oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion and the second oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion, wherein the oligonucleotide primers in a particular set are suitable for hybridization on complementary strands of a corresponding target nucleotide sequence to permit formation of a polymerase chain reaction product, but have a mismatch which interferes with formation of such a polymerase chain reaction product when hybridized to any other nucleotide sequence present in the sample, and wherein the polymerase chain reaction products in a particular set may be distinguished from other polymerase chain reaction products in the same group or other groups;
providing a polymerase;
blending the sample, the primary oligonucleotide primers, and the polymerase to form a primary polymerase chain reaction mixture;
subjecting the primary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic acid sequences are separated, a hybridization treatment, wherein the target-specific portions of the primary oligonucleotide primers hybridize to the target nucleotide sequences, and an extension treatment, wherein the hybridized primary oligonucleotide primers are extended to form primary extension products complementary to the target nucleotide sequence to which the primary oligonucleotide primer is hybridized;
providing one or a plurality of secondary oligonucleotide primer sets, each set characterized by (a) a first secondary primer containing the same sequence as the 5′
upstream portion of a first primary oligonucleotide primer, and (b) a second secondary primer containing the same sequence as the 5′
upstream portion of a second primary oligonucleotide primer from the same primary oligonucleotide primer set as the first primary oligonucleotide contained by the first secondary primer, wherein a set of secondary oligonucleotide primers may be used to amplify all of the primary extension products in a given group;
blending the primary extension products, the secondary oligonucleotide primers, and the polymerase to form a secondary polymerase chain reaction mixture;
subjecting the secondary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic acid sequences are separated, a hybridization treatment, wherein the secondary oligonucleotide primers hybridize to the primary extension products, an extension treatment, wherein the hybridized secondary oligonucleotide primers are extended to form secondary extension products complementary to the primary extension products;
providing a plurality of oligonucleotide probe sets, each set characterized by (a) a first oligonucleotide probe, having a secondary extension product-specific portion and a detectable reporter label, and (b) a second oligonucleotide probe, having a secondary extension product-specific portion, wherein the oligonucleotide probes in a particular set are suitable for ligation together when hybridized adjacent to one another on a complementary secondary extension product-specific portion, but have a mismatch which interferes with such ligation when hybridized to any other nucleotide sequence present in the sample;
providing a ligase;
blending the secondary extension products, the plurality of oligonucleotide probe sets, and the ligase to form a ligase detection reaction mixture;
subjecting the ligase detection reaction mixture to one or more ligase detection reaction cycles comprising a denaturation treatment, wherein any hybridized oligonucleotides are separated from the secondary extension product, and a hybridization treatment, wherein the oligonucleotide probe sets hybridize at adjacent positions in a base-specific manner to their respective secondary extension products, if present, and ligate to one another to form a ligation product sequence containing (a) the detectable reporter label and (b) the secondary extension product-specific portions connected together, wherein the oligonucleotide probe sets may hybridize to nucleotide sequences other than their respective complementary secondary extension products but do not ligate together due to a presence of one or more mismatches and individually separate during the denaturation treatment; and
detecting the reporter labels of the ligation product sequences, thereby indicating the presence of two or more target nucleotide sequences in the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
separating the ligation product sequences by size or electrophoretic mobility and distinguishing, after said detecting, the ligation product sequences which differ in size.
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3. A method according to claim 1, wherein the second oligonucleotide probe of each set has an addressable array-specific portion, said method further comprising:
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providing a solid support with different capture oligonucleotides immobilized at different particular sites, wherein the capture oligonucleotides have nucleotide sequences complementary to the addressable array-specific portions and contacting the ligase detection reaction mixture, after said subjecting it to one or more ligase detection reaction cycles, with the solid support under conditions effective to hybridize the ligation product sequences to the capture oligonucleotides in a base-specific manner, thereby capturing the addressable array-specific portions to the solid support at the site with the complementary capture oligonucleotide, wherein said detecting indicates the presence of ligation product sequences captured using the addressable array-specific portions and immobilized to the solid support at particular sites, thereby indicating the presence of one or more target nucleotide sequences in the sample.
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4. A method according to claim 1, wherein the relative amounts of one or more of a plurality of sequences, differing by one or more single-base changes, insertions, deletions, or translocations and present in a sample in unknown amounts with one or more target nucleotide sequences being quantified, said method further comprising:
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quantifying, after said subjecting the secondary polymerase chain reaction mixture to one or more polymerase chain reaction cycles, the amounts of secondary extension products;
providing a known amount of one or more marker target nucleotide sequences;
providing one or more sequence-specific probe sets, including probe sets specifically designed for the marker target nucleotide sequences;
blending the marker target nucleotide sequences, and the probe sets specifically designed for the marker target nucleotide sequences with ligase detection reaction mixture;
quantifying the amount of ligation product sequences; and
comparing the amount of ligation product sequences generated from the unknown sample with the amount of ligation product sequences generated from known amounts of marker target nucleotide sequences to provide a quantitative measure of the relative level of one or more target nucleotide sequences in the sample.
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5. A method according to claim 4, wherein the second oligonucleotide probe has an addressable array-specific portion, said method further comprising:
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providing a solid support with different capture oligonucleotides immobilized at different particular sites, wherein the capture oligonucleotides have nucleotide sequences complementary to the addressable array-specific portions;
contacting the ligase detection reaction mixture, after said subjecting it to one or more ligase detection reaction cycles, with the solid support under conditions effective to hybridize the ligation product sequences to the capture oligonucleotides in a base-specific manner, thereby capturing the addressable array-specific portions to the solid support at the site with the complementary capture oligonucleotide; and
quantifying the amount of ligation product sequences captured using the addressable array-specific portions and immobilized to the solid support at particular sites;
comparing the amount of captured ligation product sequences generated from the unknown sample with the amount of captured ligation product sequences generated from known amounts of marker target nucleotide sequences to provide a quantitative measure of the relative level of two or more target nucleotide sequences in the sample.
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6. A method according to claim 4, wherein the one or more marker target nucleotide sequences differ from the target nucleotide sequences at one or more single nucleotide positions.
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7. A method according to claim 4, wherein the oligonucleotide probe sets form a plurality of oligonucleotide probe groups, each group comprised of one or more oligonucleotide probe sets designed for distinguishing multiple allele differences at a single nucleotide position, wherein, in the oligonucleotide probe sets of each group, there is a common first oligonucleotide probe, having a secondary extension product-specific portion and a detectable reporter label, and a second oligonucleotide probe, having a secondary extension product-specific portion which hybridizes to a given allele or marker nucleotide sequence in a base-specific manner, each second oligonucleotide probe having a different length and, wherein the ligation product sequences of oligonucleotide probes in a particular set generate a unique length product, said method further comprising:
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separating the ligation product sequences by size or electrophoretic mobility and distinguishing the ligation product sequences which differ in size.
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8. A method according to claim 4, wherein the oligonucleotide probe sets form a plurality of oligonucleotide probe groups, each group comprised of one or more oligonucleotide probe sets designed for distinguishing multiple allele differences at a single nucleotide position, wherein, in the oligonucleotide probe sets of each group, there is a common first oligonucleotide probe, having a secondary extension product-specific portion, and a second oligonucleotide probe, having a secondary extension product-specific portion which hybridizes to a given allele or marker nucleotide sequence in a base-specific manner, each second oligonucleotide probe having a different detectable reporter label and wherein the ligation product sequences of oligonucleotide probes in a particular set generate a unique length product, said method further comprising:
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separating the ligation product sequences by size or electrophoretic mobility and distinguishing the ligation product sequences which differ in size.
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9. A method according to claim 5, wherein the oligonucleotide probe sets form a plurality of oligonucleotide probe groups, each group comprised of one or more oligonucleotide probe sets designed for distinguishing multiple allele differences at a single nucleotide position, wherein, in the oligonucleotide probe sets of each group, there is a common first oligonucleotide probe, having a secondary extension product-specific portion and a detectable reporter label and a second oligonucleotide probe having a secondary extension product-specific portion which hybridizes to a given allele or a marker nucleotide sequence in a base-specific manner, each second oligonucleotide probe having different addressable array-specific portions.
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10. A method according to claim 5, wherein the oligonucleotide probe sets form a plurality of oligonucleotide probe groups, each group comprised of one or more oligonucleotide probe sets designed for distinguishing multiple allele differences at a single nucleotide position, wherein, in the oligonucleotide probe set of each group, there is a common first oligonucleotide probe, having a secondary extension product-specific portion and an addressable array-specific portion, and a second oligonucleotide probe, having a secondary extension product-specific portion which hybridizes to a given allele or a marker nucleotide sequence in a base-specific manner, each second oligonucleotide probe having different detectable reporter label.
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11. A method according to claim 1, wherein multiple allele differences at two or more nearby or adjacent nucleotide positions in a single target nucleotide sequence or multiple allele differences at two or more nearby or adjacent nucleotide positions in multiple target nucleotide sequences are distinguished with oligonucleotide probe sets having secondary extension-specific portions which may overlap.
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12. A method according to claim 1, wherein a low abundance of multiple allele differences at multiple nearby or adjacent positions in a single target nucleotide sequence in the presence of an excess of normal sequence, or a low abundance of multiple allele differences at multiple nearby positions in multiple target nucleotide sequences in the presence of an excess of normal sequence in a sample are distinguished, the oligonucleotide probe set forming a plurality of oligonucleotide probe groups, each group comprised of one or more oligonucleotide probe sets designed for distinguishing multiple allele differences at a single nucleotide position, wherein one or more sets within a group share common first oligonucleotide probes, and the second oligonucleotide probes have secondary extension product-specific portions, which hybridize to a given allele excluding the normal allele in a base-specific manner, wherein, in said detecting, the labels of ligation product sequences are detected, thereby indicating a presence, in the sample, of one or more low abundance alleles at one or more nucleotide positions in one or more target nucleotide sequences.
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13. A method according to claim 1, wherein a low abundance of multiple allele differences at multiple nearby or adjacent positions in a single target nucleotide sequence, in the presence of an excess of normal sequence, or a low abundance of multiple allele differences at multiple nearby positions in multiple target nucleotide sequences, in the presence of an excess of normal sequence, in the sample in unknown amounts are quantified, said method further comprising:
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providing a known amount of one or more marker target nucleotide sequences;
providing one or more marker-specific oligonucleotide probe sets, each set characterized by (a) a first oligonucleotide probe having a target-specific portion complementary to a marker target nucleotide sequence and (b) a second oligonucleotide probe, having a target-specific portion complementary to a marker target nucleotide sequence and a detectable reporter label, wherein the oligonucleotide probes in a particular marker-specific oligonucleotide set are suitable for ligation together when hybridized adjacent to one another on a corresponding marker target nucleotide sequence, but, when hybridized to any other nucleotide sequence present in the sample or added marker sequences, have a mismatch which interferes with such ligation, wherein said plurality of oligonucleotide probe sets and said plurality of marker-specific oligonucleotide probe sets form oligonucleotide probe groups for distinguishing multiple allele differences at a single nucleotide position, including marker nucleotide sequences, wherein one or more sets within a group share a common first oligonucleotide probe and a second oligonucleotide probe, having a secondary extension product-specific portion, which hybridizes to a given allele excluding the normal allele in a base-specific manner, wherein said blending to form the ligase detection reaction mixture comprises blending the marker target nucleotide sequences and the probe sets specifically designed for the marker target nucleotide sequences with the ligase detection reaction mixture;
quantifying the amount of ligation product sequences; and
comparing the amount of ligation product sequences generated from the low abundance unknown sample with the amount of ligation product sequences generated from known amounts of marker target nuclc,)tide sequences, to provide a quantitative measure of the level of one or more low abundance target nucleotide sequences in the sample.
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14. A method according to claim 1, wherein each of the denaturation treatments is at a temperature of about 80-105°
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15. A method according to claim 1, wherein each cycle of the ligase detection reaction, comprising a denaturation treatment and a hybridization treatment, is from about 30 seconds to about five minutes long.
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16. A method according to claim 1, wherein said subjecting the ligase detection reaction mixture to one or more ligase detection reaction cycles is repeated for 2 to 50 cycles.
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17. A method according to claim 1, wherein the total time for said subjecting the ligase detection reaction mixture to one or more ligase detection reaction cycles is 1 to 250 minutes.
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18. A method according to claim 1, wherein the ligase is selected from the group consisting of Thermus aquaticus ligase, Thermus thermophilus ligase, E. coli ligase, T4 ligase, and Pyrococcus ligase.
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19. A method according to claim 1, wherein the detectable reporter label is selected from the group consisting of chromophores, fluorescent moieties, enzymes, antigens, heavy metals, magnetic probes, dyes, phosphorescent groups, radioactive materials, chemiluminescent moieties, and electrochemical detecting moieties.
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20. A method according to claim 1, wherein the oligonucleotide probes hybridize to their secondary extension products at a temperature of 50-85°
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21. A method according to claim 1, wherein the secondary extension product-specific portions of the oligonucleotide probes are 20 to 28 nucleotides long.
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22. A method according to claim 1, wherein the oligonucleotide probe sets are selected from the group consisting of ribonucleotides, deoxyribonucleotides, modified ribonucleotides, modified deoxyribonucleotides, modified phosphate-sugar backbone oligonucleotides, nucleotide analogues, and mixtures thereof.
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23. A method for identifying two or more of a plurality of sequences differing by one or more single-base changes, insertions, deletions, or translocations in a plurality of target nucleotide sequences comprising:
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providing a sample potentially containing one or more target nucleotide sequences with a plurality of sequence differences;
providing one or more primary oligonucleotide primer groups, each group comprised of one or more primary oligonucleotide primer sets, each set characterized by (a) a first oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, and (b) a second oligonucleotide primer, having a target-specific portion and a 5′
upstream secondary primer-specific portion, wherein the first oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion and the second oligonucleotide primers of each set in the same group contain the same 5′
upstream secondary primer-specific portion, wherein the oligonucleotide primers in a particular set are suitable for hybridization on complementary strands of a corresponding target nucleotide sequence to permit formation of a polymerase chain reaction product, but have a mismatch which interferes with formation of such a polymerase chain reaction product when hybridized to any other nucleotide sequence present in the sample, and wherein the polymerase chain reaction products in a particular set may be distinguished from other polymerase chain reaction products in the same group or other groups;
providing a polymerase;
blending the sample, the primary oligonucleotide primers, and the polymerase to form a primary polymerase chain reaction mixture;
subjecting the primary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic acid sequences are separated, a hybridization treatment, wherein the target-specific portion of the primary oligonucleotide primers hybridize to the target nucleotide sequences, and an extension treatment, wherein the hybridized primary oligonucleotide primers are extended to form primary extension products complementary to the target nucleotide sequence to which the primary oligonucleotide primer is hybridized;
providing one or a plurality of secondary oligonucleotide primer sets, each set characterized by (a) a first secondary primer, having a detectable reporter label and containing the same sequence as the 5′
upstream portion of a first primary oligonucleotide primer, and (b) a second secondary primer containing the same sequence as the 5′
upstream portion of a second primary oligonucleotide primer from the same primary oligonucleotide primer set as the first primary oligonucleotide complementary to the first secondary primer, wherein a set of secondary oligonucleotide primers amplify the primary extension products in a given group;
blending the primary extension products, the secondary oligonucleotide primers, and the polymerase to form a secondary polymerase chain reaction mixture;
subjecting the secondary polymerase chain reaction mixture to two or more polymerase chain reaction cycles comprising a denaturation treatment, wherein hybridized nucleic sequences are separated, a hybridization treatment, wherein the secondary oligonucleotide primers hybridize to the primary extension products, an extension treatment, wherein the hybridized secondary oligonucleotide primers are extended to form secondary extension products complementary to the primary extension product; and
detecting the labeled secondary extension products, thereby indicating the presence of one or more target nucleotide sequences in the sample. - View Dependent Claims (24, 25, 26)
separating the extension products by size or electrophoretic mobility and distinguishing the secondary extension products which differ in size.
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25. A method according to claim 23, wherein the secondary extension products contain unique sequences so that they may be distinguished from other secondary extension products, said method further comprising:
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providing a solid support with different capture oligonucleotides immobilized at different particular sites, wherein the capture oligonucleotides have nucleotide sequences complementary to the unique nucleotide sequences within the secondary extension products;
contacting the secondary polymerase chain reaction mixture, after said subjecting it to one or more polymerase chain reaction cycles, with the solid support under conditions effective to hybridize the secondary extension products to the capture oligonucleotides in a base-specific manner, thereby capturing the secondary extension products to the solid support at the site with complementary capture oligonucleotides, wherein said detecting indicates the presence of secondary extension products captured using the unique nucleotide sequence portions within the secondary extension products and immobilized to the solid support at particular sites, thereby indicating the presence of one or more target nucleotide sequences in the sample.
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26. A method according to claim 23, wherein the primary oligonucleotide primer sets in the same group contain either the same 5′
- upstream primer-specific portion on the first oligonucleotide primers or the same 5′
upstream primer-specific portion on the second oligonucleotide primers and, the secondary oligonucleotide primer sets form one or a plurality of oligonucleotide primer groups, each group comprised of one or more oligonucleotide primer sets, wherein one secondary oligonucleotide primer has a detectable reporter label and the other secondary oligonucleotide primer contains an addressable array-specific portion linked to the 5′
end of that primer which remains single stranded after said subjecting the secondary polymerase chain reaction mixture to one or more polymerase chain reaction cycles, the oligonucleotide primer sets in the same group contain either the same first secondary oligonucleotide primer or the same second secondary oligonucleotide primer, wherein a group of secondary oligonucleotide primers may be used to amplify all the primary extension products in a given groups, said method further comprising;providing a solid support with different capture oligonucleotides immobilized at different particular sites, wherein the capture oligonucleotides have nucleotide sequences complementary to the addressable array-specific portions;
contacting the secondary polymerase chain reaction mixture, after said subjecting it to one or more polymerase chain reaction cycles, with the solid support under conditions effective to hybridize the secondary extension products to the capture oligonucleotides in a base-specific manner, thereby capturing the addressable array-specific portions to the solid support at the site with the complementary capture oligonucleotide, wherein said detecting indicates the presence of extension products captured using the addressable array-specific portions and immobilized to the solid support at particular sites, thereby indicating the presence of one or more target nucleotide sequences in the sample.
- upstream primer-specific portion on the first oligonucleotide primers or the same 5′
Specification