A stable bidentate protein binder achieved via DNA self-assembly driven ligand migration

Herein we disclose the development of two complementary single stranded DNA-small molecule chimeras (DCs) that by themselves only bind weakly to a protein target (human serum albumin; HSA). However, upon self-assembly, the DC duplex facilitates a ligand migration reaction leading to a covalently fas...

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Published inChemical communications (Cambridge, England) Vol. 51; no. 71; pp. 13615 - 13618
Main Authors Su, Xiaoye, Zhou, Xiao, Zhang, Nan, Zhu, Mengyuan, Zhang, Hong, Jayawickramarajah, Janarthanan
Format Journal Article
LanguageEnglish
Published England 14.09.2015
Subjects
Base Sequence
DNA - metabolism
Humans
Ligands
Models, Biological
Molecular Sequence Data
Molecular Structure
Protein Binding
Protein Stability
Serum Albumin - chemistry
Serum Albumin - metabolism
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Summary:Herein we disclose the development of two complementary single stranded DNA-small molecule chimeras (DCs) that by themselves only bind weakly to a protein target (human serum albumin; HSA). However, upon self-assembly, the DC duplex facilitates a ligand migration reaction leading to a covalently fastened high-affinity, bidentate, protein-binder that resides at the terminus of only one of the DC strands. Due to this specific localization, the bidentate projection remains intact—and thus the system continues to strongly bind HSA—even under conditions that denature and degrade the DNA scaffolds.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc03213j