metabion can assist you in your experiments by providing you with peptide- oligonucleotide conjugates. The structure of these molecules consists of a peptide conjugated to an oligonucleotide. It is therefore different from peptide-nucleic acids (PNA).
Conjugation of oligonucleotides with a peptide can be a powerful mean to achieve efficient cell delivery without the need of transfection reagents. This is particularly useful to deliver antisense oligonucleotides in cells (1).
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1. R.L. Juliano, Xin Ming, and Osamu Nakagawa. The Chemistry and Biology of Oligonucleotide Conjugates. Acc Chem Res. . 45, 2013, Bd. 7, 1067–1076.