Document Detail

Synthesis and Nucleic Acids Binding Properties of Diastereomeric Aminoethylprolyl Peptide Nucleic Acids (aepPNA).
MedLine Citation:
PMID:  21360408     Owner:  NLM     Status:  In-Data-Review    
A general synthetic method for Fmoc-protected monomers of all four diastereomeric aminoethyl peptide nucleic acid (aepPNA) has been developed. The key reaction is the coupling of nucleobase-modified proline derivatives and Fmoc-protected aminoacetaldehyde by reductive alkylation. Oligomerization of the aepPNAs up to 10mer was achieved by Fmoc-solid phase peptide synthesis methodology. Preliminary binding studies of these aepPNA oligomers with nucleic acids suggested that the "cis-" homothymine aepPNA decamers with (2'R,4'R) and (2'S,4'S) configurations can bind, albeit with slow kinetics, to their complementary RNA [poly(adenylic acid)] but not to the complementary DNA [poly(deoxyadenylic acid)]. On the other hand, the trans homothymine aepPNA decamers with (2'R,4'S) and (2'S,4'R) configurations failed to form stable hybrid with poly(adenylic acid) and poly(deoxyadenylic acid). No hybrid formation could be observed between a mixed-base (2'R,4'R)-aepPNA decamer with DNA and RNA in both antiparallel and parallel orientations.
Patcharee Ngamwiriyawong; Tirayut Vilaivan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nucleosides, nucleotides & nucleic acids     Volume:  30     ISSN:  1532-2335     ISO Abbreviation:  Nucleosides Nucleotides Nucleic Acids     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-03-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100892832     Medline TA:  Nucleosides Nucleotides Nucleic Acids     Country:  England    
Other Details:
Languages:  eng     Pagination:  97-112     Citation Subset:  IM    
Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.
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