Konstantin Ignatov, Andreas Kirsten, Vladimir Kramarov, Ferdinand Holzinger, Sergey Kovalenko
Till recently DNA polymerases were either suitable for PCR amplification or isothermal amplification, but not both. The new SD polymerase (Bioron GmbH Patent US 9,896,671) is a Taq DNA polymerase mutant that was created as a result of successful attempt to combine the thermostability and robust polymerase activity of Taq DNA polymerase with strong strand displacement activity of Bst DNA polymerase. Currently SD polymerase seems to be the only enzyme suitable for PCR which possesses strong strand-displacement activity. New polymerase was shown to be suitable in the number of unique applications such as heat pre-denaturated LAMP and PCDR (Polymerase Strand Displacement Reaction). SD polymerase appeared to be effective in conventional PCR, Long-PCR and amplification of GC-regions with complex secondary structures. Moreover, SD polymerase can be effectively used in WGA (Whole Genome Amplification) based on DOP-PCR, in the Single Cells WGA, in the new NGS-library construction methods and in the newly developed template-independent tailed tandem repeat PCDR (TTR-PCDR).
Since SD-polymerase allows performing Strand Displacement and PCR in the same reaction, the work flow for the SD polymerase based techniques are usually comfortable, simple and friendly.
New techniques based on the advantageous properties of SD polymerase are currently under development by several biotech companies over the world. Thus, SD polymerase is able to improve the existing DNA amplification techniques and can be used for creation of new convenient methods of DNA manipulations.
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