DNA-binding peptides searched from the solid-phase combinatorial library with the use of the magnetic beads attaching the target duplex DNA

Md Rowshon Alam, Minoru Maeda, Shigeki Sasaki

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We have exhibited successful and rapid screening of DNA-binding peptide ligands from solid-phase library beads with the use of the target DNA- conjugated magnetic beads. The target duplex DNA (3) has a polyether linker between two complementary sequences (T4A3G-ether linker-CT3A4) and is stable in the duplex form during the selection procedure. Finally, 71 pentapeptide sequences were identified from the solid-phase pentapeptide library. From an analysis of the peptide sequences identified in this study, it has been revealed that peptide ligands contain hydrophobic amino acids as the major component. The synthetic peptides with identified sequences and a combination of the major components have exhibited moderate to high binding affinity to the duplex DNA in competition experiments with ethidium-DNA complexes. (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)465-473
Number of pages9
JournalBioorganic and Medicinal Chemistry
Volume8
Issue number2
DOIs
Publication statusPublished - Feb 1 2000

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

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