Güixens-Gallardo P, Hocek M, Perlíková P. Inhibition of non-templated nucleotide addition by DNA polymerases in primer extension using twisted intercalating nucleic acid modified templates.
Bioorg Med Chem Lett 2015;
26:288-291. [PMID:
26707394 DOI:
10.1016/j.bmcl.2015.12.034]
[Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/10/2015] [Indexed: 12/22/2022]
Abstract
A simple and elegant method for inhibition of non-templated nucleotide addition by DNA polymerases and for following DNA 3'-heterogeneity in enzymatic DNA synthesis by primer extension (PEX) is described. When template bearing ortho-twisted intercalating nucleic acid (ortho-TINA) at the 5'-end is used, non-templated nucleotide addition is reduced in both the A- and B-family DNA polymerases (KOD XL, KOD (exo-), Bst 2.0, Therminator, Deep Vent (exo-) and Taq). Formation of a single oligonucleotide product was observed with ortho-TINA modified template and KOD XL, KOD (exo-), Bst 2.0, Deep Vent (exo-) and Taq DNA polymerases. This approach can be applied to the synthesis of both unmodified and base-modified oligonucleotides.
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