COMPOSITION AND METHOD FOR SEQUENCING NUCLEIC ACID
First Claim
Patent Images
1. A method comprising the steps of:
- amplifying a DNA sequence under conditions to produce an amplification reaction product, the amplification reaction product comprising an excess amplification primer; and
contacting the amplification reaction product with a reaction mixture comprising an exonuclease I and a sequencing primer configured to be resistant to degradation by the exonuclease I, whereby, the excess amplification primer is degraded by the exonuclease I and the nuclease-resistant sequencing primer is essentially non-degraded.
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Abstract
A composition for sequencing DNA is provided and comprises a nuclease and a nuclease-resistant sequencing primer. A method of preparing DNA for sequencing and a method of sequencing DNA are also provided. The method of sequencing DNA can comprise contacting amplification reaction products with the composition under conditions in which excess amplification primer is degraded by the nuclease and the nuclease-resistant sequencing primer is essentially non-degraded.
2 Citations
26 Claims
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1. A method comprising the steps of:
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amplifying a DNA sequence under conditions to produce an amplification reaction product, the amplification reaction product comprising an excess amplification primer; and contacting the amplification reaction product with a reaction mixture comprising an exonuclease I and a sequencing primer configured to be resistant to degradation by the exonuclease I, whereby, the excess amplification primer is degraded by the exonuclease I and the nuclease-resistant sequencing primer is essentially non-degraded. - View Dependent Claims (2, 3, 4, 6, 7)
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5. (canceled)
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8. A method comprising the steps of:
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amplifying DNA in a first reaction mixture comprising nuclease-sensitive amplification primers to form amplified DNA; contacting the first reaction mixture of the amplifying step with a second reaction mixture comprising an exonuclease I and a sequencing primer configured to be resistant to degradation by the exonuclease I, whereby the nuclease sensitive amplification primers are degraded by the exonuclease I; inactivating the exonuclease I; and causing the amplified DNA to react in a sequencing reaction under conditions in which the nuclease-resistant sequencing primer primes the sequencing reaction. - View Dependent Claims (9, 10, 12, 13, 14, 15, 16)
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11. (canceled)
- 17. A composition for sequencing nucleic acid, comprising a polymerase, an exonuclease, a nuclease-resistant sequencing primer, deoxynucleotide triphosphates, and dideoxynucleotide triphosphates.
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19. (canceled)
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21. (canceled)
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25. (canceled)
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26. (canceled)
Specification