Composition and method for nucleic acid sequencing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12Q-001/68
G01N-033/53
C07H-021/02
C07H-021/04
출원번호
UP-0821689
(2004-04-08)
등록번호
US-7745116
(2010-07-19)
발명자
/ 주소
Williams, John G. K.
출원인 / 주소
Pacific Biosciences of California, Inc.
대리인 / 주소
Townsend and Townsend and Crew LLP
인용정보
피인용 횟수 :
56인용 특허 :
24
초록▼
The present invention provides compositions and methods for detecting incorporation of a labeled nucleotide triphosphate onto the growing end of a primer nucleic acid molecule. The method is used, for example, to genotype and sequence a nucleic acid. In a preferred embodiment, the method described h
The present invention provides compositions and methods for detecting incorporation of a labeled nucleotide triphosphate onto the growing end of a primer nucleic acid molecule. The method is used, for example, to genotype and sequence a nucleic acid. In a preferred embodiment, the method described herein detects individual NTP molecules.
대표청구항▼
What is claimed is: 1. A polymerase-nucleic acid complex, said polymerase-nucleic acid complex comprising: a target nucleic acid, a family A or family B polymerase having a DNA binding cleft, and an attachment complex that attaches said polymerase on both sides of the DNA binding cleft and further
What is claimed is: 1. A polymerase-nucleic acid complex, said polymerase-nucleic acid complex comprising: a target nucleic acid, a family A or family B polymerase having a DNA binding cleft, and an attachment complex that attaches said polymerase on both sides of the DNA binding cleft and further wherein the attachment complex attaches the polymerase to a support, wherein said attachment complex irreversibly associates said target nucleic acid with said polymerase until replication is complete. 2. The polymerase-nucleic complex of claim 1, wherein said polymerase-nucleic acid complex further comprises a primer nucleic acid which complements a region of said target nucleic acid. 3. The polymerase-nucleic complex of claim 1, wherein said attachment complex comprises at least two anchors. 4. The polymerase-nucleic complex of claim 1, wherein said attachment complex comprises a topological tether. 5. The polymerase-nucleic complex of claim 3, wherein said at least two anchors further comprises a topological tether. 6. The polymerase-nucleic complex of claim 5, wherein said topological tether is attached to at least one anchor via a complementary binding pair. 7. The polymerase-nucleic complex of claim 5, wherein said topological tether is attached to at least two anchors via at least two complementary binding pairs. 8. The polymerase-nucleic complex of claim 6, wherein said complementary binding pairs are selected from the group consisting of any haptenic or antigenic compound in combination with a corresponding antibody or binding portion or fragment thereof, nonimmunological binding pairs, receptor-receptor agonist or antagonist, IgG-protein A, lectin-carbohydrate, enzyme-enzyme cofactor, enzyme-enzyme-inhibitor, and complementary polynucleotide pairs capable of forming nucleic acid duplexes. 9. The polymerase-nucleic complex of claim 8, wherein said complementary binding pair is selected from the group consisting of digoxigenin and anti-digoxigenin, fluorescein and anti-fluorescein, dinitrophenol and anti-dinitrophenol, bromodeoxyuridine and anti-bromodeoxyuridine, mouse immunoglobulin and goat anti-mouse immunoglobulin, biotin-avidin, biotin-streptavidin, thyroxine and cortisol, a phenylalanine derivative and hydrazine linker and acetylcholine and receptor-acetylcholine. 10. The polymerase-nucleic complex of claim 6, wherein said at least one anchor comprises at least one amino acid or an epitope for attachment. 11. The polymerase-nucleic complex of claim 10, wherein said at least one amino acid is selected from the group consisting of a cysteine, a phenylalanine derivative and a histidine. 12. The polymerase-nucleic complex of claim 11, wherein said histidine is selected from the group consisting of a histidine tag, a histidine patch and a polyhistidine sequence. 13. The polymerase-nucleic complex of claim 4, wherein said topological tether comprises an antibody. 14. The polymerase-nucleic complex of claim 6, wherein said at least one anchor is attached to a support. 15. The polymerase-nucleic complex of claim 6, wherein said at least one anchor entraps said target nucleic acid. 16. The polymerase-nucleic complex of claim 5, wherein said topological tether is an antibody and said at least two anchors are each a histidine tag. 17. The polymerase-nucleic complex of claim 1, wherein said target nucleic acid is a circular DNA. 18. The polymerase-nucleic complex of claim 17, wherein said circular DNA is sequenced by strand displacement synthesis. 19. The polymerase-nucleic complex of claim 1, wherein said Family A polymerase is selected from the group consisting of Klenow, Taq, and T7 polymerase. 20. The polymerase-nucleic complex of claim 1, wherein said Family B polymerase is selected from the group consisting of a therminator polymerase, phi29, RB-69 and T4 polymerase. 21. The polymerase-nucleic complex of claim 1, wherein said polymerase-nucleic acid complex is an array of polymerase-nucleic acid complexes attached to a support. 22. The polymerase-nucleic complex of claim 21, wherein the plurality of members of said array of polymerase-nucleic acid complexes is randomly attached to said support. 23. The polymerase-nucleic complex of claim 21, wherein the plurality of members of said array of polymerase-nucleic acid complexes is uniformly attached to said support. 24. The polymerase-nucleic complex of claim 1, wherein the processivity index is at least 0.5. 25. The polymerase-nucleic complex of claim 24, wherein the processivity index is at least 0.8. 26. The polymerase-nucleic complex of claim 25, wherein the processivity index is 1. 27. A method for detecting incorporation of at least one NTP into a single primer nucleic acid molecule, said method comprising: i. immobilizing onto a support a polymerase nucleic acid complex comprising a target nucleic acid, a primer nucleic acid which complements a region of the target nucleic acid, and at least one family A or family B polymerase having a DNA binding cleft, and an attachment complex that attaches said polymerase on both sides of the DNA binding cleft and further wherein the attachment complex attaches the polymerase to a support, wherein during replication, said attachment complex irreversibly associates said target nucleic acid with said polymerase until replication is complete; ii. contacting said immobilized complex with at least one type of labeled nucleotide triphosphate (NTP), wherein each NTP is labeled with a detectable label, and iii. detecting the incorporation of said at least one type of labeled NTP into a single molecule of said primer, while said at least one type of labeled NTP is in contact with said immobilized complex, by detecting the label of the NTP while said at least one type of labeled NTP is in contact with said polymerase nucleic acid complex. 28. The method of claim 27, wherein said polymerase nucleic acid complex is contacted with a single type of labeled NTP. 29. The method of claim 27, wherein said polymerase nucleic acid complex is contacted with at least two different types of NTPs, and wherein each type of NTP is uniquely labeled. 30. The method of claim 27, wherein said polymerase nucleic acid complex is contacted with at least four different types of NTPs, and wherein each type of NTP is uniquely labeled. 31. The method of claim 27, wherein said NTPs are labeled on the γ-phosphate. 32. The method of claim 31, wherein said NTPs are labeled on the γ-phosphate with a fluorescent label. 33. The method of claim 27, wherein the detecting comprises detecting a unique signal from the labeled NTP using a system or device selected from the group consisting of an optical reader, a high-efficiency photon detection system, a photodiode, a camera, a charge couple device, an intensified charge couple device, a near-field scanning microscope, a far-field confocal microscope, a microscope that detects wide-field epi-illumination, evanescent wave excitation and a total internal reflection fluorescence microscope. 34. The method of claim 27, wherein the label of the NTP is detected using a method comprising a four color evanescent wave excitation device. 35. The method of claim 27, wherein said detecting is carried out by a mechanism selected from the group consisting of fluorescence resonance energy transfer, an electron transfer mechanism, an excited-state lifetime mechanism and a ground-state complex quenching mechanism. 36. The method of claim 27, wherein said detecting step comprises measuring a residence time of a labeled NTP in said polymerase nucleic acid complex. 37. The method of claim 36, wherein the residence time of an NTP that is incorporated into the primer nucleic acid is at least about 100 times longer to about 10,000 times longer than the residence time of an NTP that is not incorporated. 38. The method of claim 37, wherein the residence time of an NTP that is incorporated into the primer nucleic acid is at least about 200 times longer to about 500 times longer than the residence time of an NTP that is not incorporated. 39. The method of claim 36, wherein the residence time of an NTP that is incorporated into the primer nucleic acid is about 1.0 milliseconds to about 100 milliseconds. 40. The method of claim 39, wherein the residence time of an NTP that is incorporated into the primer nucleic acid is about 2.0 milliseconds to about 10 milliseconds. 41. The method of claim 27, further comprising the step of genotyping said target nucleic acid by determining the identity of at least one NTP that is incorporated into a single molecule of the primer. 42. The method of claim 27, further comprising: sequencing said target nucleic acid by determining the identity and sequence of incorporation of NTPs that are incorporated into a single molecule of the primer. 43. The method of claim 27, wherein said detection is a sequential detection of the identities of more than one uniquely labeled dNTPs that are sequentially incorporated into the primer, wherein said sequential detection yields the sequence of region of the target DNA that is downstream of the elongating end of the primer. 44. The method of claim 27, wherein said polymerase-nucleic acid complex comprises a target nucleic acid and a nucleic acid polymerase, wherein said polymerase has an attachment complex comprising at least one anchor, which irreversibly associates said target nucleic acid with said polymerase for increasing the processivity index. 45. The polymerase-nucleic complex of claim 1, wherein said attachment complex is covalently attached to the polymerase. 46. The polymerase-nucleic complex of claim 3, wherein the attachment complex comprises two anchors attached to the polymerase at different positions. 47. The polymerase-nucleic complex of claim 3, wherein the two anchors comprise polypeptides. 48. The polymerase-nucleic complex of claim 47, wherein the two anchors comprise identical amino acid sequences. 49. The polymerase-nucleic complex of claim 3, wherein the two anchors straddle the DNA binding cleft of the polymerase. 50. The polymerase-nucleic complex of claim 1, wherein the target nucleic acid is a circular nucleic acid molecule. 51. The polymerase-nucleic complex of claim 1, wherein the target nucleic acid is a DNA molecule. 52. The polymerase-nucleic complex of claim 1, wherein the target nucleic acid comprises a dUTP base.
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