DNA sequence-directed assembly of two peptide bioconjugates
Document Type
Article
Publication Date
10-2006
Department
Department of Chemistry
Abstract
Peptide bioconjugates combine the molecular recognition features of the polypeptide from a DNA-binding protein and the DNA-sensitive fluorescence of an intercalating dye. Here, DNA template-directed assembly of two bioconjugate probes was examined by steady-state fluorescence resonance energy transfer and time-resolved single photon counting. The Förster critical distance was determined to be approximately 26 Å for the oxazole yellow and thiazole orange donor-acceptor pair. The efficiency of energy transfer for two bioconjugates was a function of the number of intervening base pairs between two DNA cognate sites. These probes were sufficiently sensitive to detect sequence dependent curvature and polypeptide induced bending of the DNA. Molecular probes capable of examining spatial aspects of protein complexes at promoter sites could yield important information about the early events in transcription initiation.
Publication Title
Bioorganic Chemistry
Recommended Citation
Thompson, M.
(2006).
DNA sequence-directed assembly of two peptide bioconjugates.
Bioorganic Chemistry,
34(5), 235-247.
http://doi.org/10.1016/j.bioorg.2006.06.001
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/6042