Method and sequences for determinate nucleic acid hybridization

• US 20070065834A1
• Filed: 09/19/2005
• Published: 03/22/2007
• Est. Priority Date: 09/19/2005
• Status: Abandoned Application

• Current Assignee: William Hillis
• Original Assignee: William Hillis
• Inventors: Hillis, William
• Application Number:
  US11/230,279
• Publication Number:
  US 20070065834A1
• Time in Patent Office: Days
• US Class Current: 435/6
• CPC Class Codes: C12Q 1/6858 Allele-specific amplification
• CPC Class Codes: C12Q 1/6874 involving nucleic acid arrays, e.g. sequencing by hybridisation
• CPC Class Codes: C12Q 2525/117 incorporating modified base

Abstract

Provided are methods for using nucleic acid sequences having two or more degenerately pairing nucleotides, each degenerate nucleotide having a partially overlapping set of complementarity, to reduce the number of hybridizing nucleotide sequences or probes used in biochemical and molecular biological operations having sequence specific hybridization. The method may be employed for various hybridization procedures with sequence specific hybridization, including sequencing methods measuring hybridization directly, and tagging by hybridization methods in which the sequence is determined by analyzing the pattern of tags that hybridize thereto, and hybridization dependent amplification methods. The method involves hybridizing to the nucleic acid sequence of interest a first hybridizing nucleotide sequence and a second hybridizing nucleotide sequence, each comprising a sequence complementary, or complementary except at a position of interest or variable position, to a nucleic acid sequence of interest, and analyzing the whether some, all or none of the probes or tags hybridize.

Claims

1. A method of employing oligonucleotide probes to obtain information on a position of interest on a target sequence segment of a target nucleic acid analyte, the method comprising:

contacting the target nucleic acid analyte, under hybridizing conditions, with at least two oligonucleotide probes having a variable position and are complementary with the target nucleic acid analyte,

wherein on at least one of the at least two oligonucleotide probes, the variable position is occupied by a degenerately base pairing nucleotide analog selected from the group consisting of dP and 8-oxo-dG and on at least one other of the at least two oligonucleotide probes, the variable position is occupied by a degenerately base pairing nucleotide analog selected from the group consisting of dP and 8-oxo-dG or a non-degenerately base pairing nucleotide;

wherein hybridization of one or all of the at least two oligonucleotide probes to the target sequence segment occurs only if the degenerately base pairing nucleotide analog or the non-degenerately base pairing nucleotide at the variable position base pairs with a nucleotide at the position of interest on the target sequence segment; and

further wherein none of the at least two oligonucleotide probes hybridizes to the target nucleic acid analyte if there is a mismatch between the degenerately base pairing nucleotide analog or the non-degenerately base pairing nucleotide at the variable position and the nucleotide at the position of interest on the target sequence segment.

6. The method of claim 1 used for sequencing the target nucleic acid analyte.

7. The method of claim 6 further comprising an array of oligonucleotide probes, wherein the target nucleic acid analyte hybridizes to the array of oligonucleotide probes and further wherein the target sequence segment of the target nucleic acid analyte is determined by analysis of hybridization data obtained from the array of oligonucleotide probes.

8. The method of claim 7 wherein the array comprises arrayed individual beads or particles, each bead or particle having a surface to which is attached a plurality of oligonucleotide probes of identical sequence.

9. The method of claim 7 wherein the array comprises a substrate having a surface, the surface having a plurality of discrete surface sites, each site having attached a plurality of oligonucleotide probes of identical sequence.

10. The method of claim 7 wherein the target sequence segment is detected by a discrete label moiety linked to the target sequence segment.

11. The method of claim 10 wherein the discrete label moiety linked to the target sequence segment comprises a nucleic acid sequence.

12. The method of claim 10 wherein the discrete label moiety linked to the target sequence segment comprises a luminescent moiety.

13. The method of claim 12 wherein the luminescent moiety is a chemiluminescent or fluorescent moiety.

14. The method of claim 9 wherein the target sequence segment is detected by a target signal.

15. The method of claim 14 wherein the target signal is ³²P.

16. The method of claim 7 wherein target sequence segments hybridized to the array of oligonucleotide probes are detected by measuring hybridization temperature.

17. The method of claim 6 wherein the target nucleic acid analyte is sequenced by detection of labels that attach by hybridization to the target sequence segments of the target nucleic acid analyte.

18. The method of claim 1 wherein the target nucleic acid analyte is amplified by a polymerase enzyme that requires a hybridized complex for amplifying a nucleic acid sequence.

19. The method of claim 18 wherein the target nucleic acid analyte is amplified by polymerase chain reaction.

20. The method of claim 18 wherein the target nucleic acid analyte is amplified by an RNA replicase enzyme.

21. The method of claim 19 used for genetic analysis.

22. The method of claim 1 used for allelic analysis.

23. The method of claim 1 wherein the target nucleic acid analyte is derived from genomic DNA.

24. The method of claim 1 wherein the target nucleic acid analyte is derived from a cDNA.

30. The method of claim 14 wherein individual oligonucleotide probes in the array are further comprised of a linker moiety and a label moiety.

31. The method of claim 30 wherein the linker moiety comprises a common nucleic acid sequence and the label moiety comprises a signature nucleic acid sequence that identifies the target sequence segment.

33. The method of claim 31 wherein the array is imaged with decoder labels comprising a nucleic aid sequence complementary to the signature nucleic acid sequence and a second label moiety.

34. The method of claim 33 wherein the second label moiety comprises a luminescent moiety.

35. The method of claim 34 wherein the luminescent moiety is a fluorescent or chemiluminescent moiety.

36. The method of claim 14 wherein the substrate surface is functionalized with a surface modification to enhance hybridization.

37. The method of claim 36 wherein the hybridization is enhanced by increasing hybridization stringency.

117. The method of claim 1 wherein the target nucleic acid analyte is DNA and the non-degenerately base pairing nucleotide is independently selected from the group consisting of A, T, C, and G.

118. The method of claim 1 wherein the target nucleic acid analyte is RNA and the non-degenerately base pairing nucleotide is independently selected from the group consisting of A, U, C, and G.

2-5. -5. (canceled)

25-26. -26. (canceled)

27. The method of 6 wherein the target nucleic acid analyte is sequenced by analysis of hybridization data obtained from the target sequence segments attached to a substrate surface.

28. The method of 14 wherein the array is comprised of individual beads or particles, each bead or particle having a surface to which are attached a plurality of identical sequence segments.

29. The method of 14 wherein the array comprises an integrated substrate with a surface comprised of discrete sites, each site having a surface, the surface having attached a plurality of target sequence segments having an identical sequence.

38. The method of claim 29 wherein the hybridization of the target nucleic acid analyte to the array is enhanced by electronically controlling electric potential at the substrate surface.

39. The method of claim 29 wherein the integrated substrate comprises a semiconductor chip comprising electronic circuitry, wherein electric potential at the substrate surface is independently electronically controlled to enhance hybridization.

32. (canceled)

40-115. -115. (canceled)

116. (canceled)