Crouzier L, Dubois C, Wengel J, Veedu RN. Cleavage and protection of locked nucleic acid-modified DNA by restriction endonucleases.
Bioorg Med Chem Lett 2012;
22:4836-8. [PMID:
22727669 DOI:
10.1016/j.bmcl.2012.05.113]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 05/10/2012] [Accepted: 05/10/2012] [Indexed: 01/30/2023]
Abstract
Locked nucleic acid (LNA) is one of the most prominent nucleic acid analogues reported so far. We herein for the first time report cleavage by restriction endonuclease of LNA-modified DNA oligonucleotides. The experiments revealed that RsaI is an efficient enzyme capable of recognizing and cleaving LNA-modified DNA oligonucleotides. Furthermore, introduction of LNA nucleotides protects against cleavage by the restriction endonucleases PvuII, PstI, SacI, KpnI and EcoRI.
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