摘要:
The present invention relates to methods to engineer nicking endonucleases from existing Type IIs restriction endonucleases, and the production of the engineered nicking endonucleases. Two engineering methods are disclosed. One involves inactivating the dimerization function of a Type IIs restriction enzyme using site-directed mutagenesis approach. The other involves replacing the cleavage domain of a Type IIs restriction enzyme with the cleavage domain from a natural occurring nicking endonuclease, N.BstNBI.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a single strand helicase preparation or a thermostable helicase in the absence of a single strand binding protein and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a helicase preparation and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a helicase preparation and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a single strand helicase preparation or a thermostable helicase in the absence of a single strand binding protein and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a helicase preparation and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
A helicase-mediated amplification method for circular DNA templates and target DNA sequences within the templates is provided. The method combines a DNA polymerase and a helicase preparation to amplify a target sequence as well as the entire circular DNA template.
摘要:
Methods and a kit are provided for selectively and exponentially amplifying nucleic acids and include the use of a helicase preparation and a DNA polymerase such that the amplification can be performed isothermally.
摘要:
The present invention relates to recombinant DNA which encodes the PleI restriction endonuclease as well as PleI and BstNBII methyltransferase and expression of PleI restriction endonuclease and M.BstNBII in E. coli cells containing the recombinant DNA.
摘要:
The invention provides methods and compositions for enhancing the speed and sensitivity of helicase-dependent amplification through the use of an endonuclease.