DNA polymerase blends and uses thereof
First Claim
1. A blend of two or more DNA polymerases, comprising at least one fusion polypeptide DNA polymerase and at least one non-fusion polypeptide DNA polymerase,wherein said fusion polypeptide DNA polymerase has a proofreading activity and consists of a first polypeptide covalently linked to a second polypeptide, wherein said first polypeptide is a DNA polymerase selected from archaeal DNA polymerases and eubacterial DNA polymerases, and the second polypeptide is a DNA binding polypeptide, wherein the first and second polypeptides are not fused to each other in nature;
- andwherein said non-fusion polypeptide is a DNA polymerase selected from archaeal DNA polymerases and eubacterial DNA polymerases, said non-fusion polypeptide having a proofreading activity.
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Abstract
The present invention discloses novel blends of chimeric and non-chimeric thermostable DNA polymerases for use in PCR, DNA sequencing and mutagenesis protocols. The invention allows for PCR reactions with shorter extension times that will facilitate PCR amplification of genomic DNA templates and improve the efficacy of long PCR.
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Citations
25 Claims
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1. A blend of two or more DNA polymerases, comprising at least one fusion polypeptide DNA polymerase and at least one non-fusion polypeptide DNA polymerase,
wherein said fusion polypeptide DNA polymerase has a proofreading activity and consists of a first polypeptide covalently linked to a second polypeptide, wherein said first polypeptide is a DNA polymerase selected from archaeal DNA polymerases and eubacterial DNA polymerases, and the second polypeptide is a DNA binding polypeptide, wherein the first and second polypeptides are not fused to each other in nature; - and
wherein said non-fusion polypeptide is a DNA polymerase selected from archaeal DNA polymerases and eubacterial DNA polymerases, said non-fusion polypeptide having a proofreading activity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification