Nucleic Acids Research, Vol 25, Issue 23 4792-4796, Copyright © 1997 by Oxford University Press
JG Schmidt, L Christensen, PE Nielsen and LE Orgel
Peptide nucleic acids (PNAs) are analogs of nucleic acids in which the
ribose-phosphate backbone is replaced by a backbone held together by amide
bonds. PNAs are interesting as models of alternative genetic systems
because they form potentially informational base paired helical structures.
Oligocytidylates have been shown to act as templates for formation of
longer oligomers of G from PNA G2 dimers. In this paper we show that
information can be transferred from DNA to PNA. DNA C4T2C4 is an efficient
template for synthesis of PNA G4A2G4 using G2 and A2 units as substrates.
The corresponding synthesis of PNA G4C2G4 on DNA C4G2C4 is less efficient.
Incorporation of PNA T2 into PNA products on DNA C4A2C4 is the least
efficient of the three reactions. These results, obtained using PNA dimers
as substrates, parallel those obtained using monomeric activated
nucleotides.
ARTICLES
Information transfer from DNA to peptide nucleic acids by template- directed syntheses
The Salk Institute for Biological Studies, PO Box 85800, San Diego, CA 92186, USA.
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