2021年4月12日
Systematic Approach to DNA Aptamer Design Using Amino Acid-Nucleic Acid Hybrids (ANHs) Targeting Thrombin.
ACS biomaterials science & engineering
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- 巻
- 7
- 号
- 4
- 開始ページ
- 1338
- 終了ページ
- 1343
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/acsbiomaterials.1c00060
Chemical modifications of innate DNA/RNA aptamers facilitate the improvement of their function. Herein, we report our modular strategy to manipulate a thrombin-binding DNA aptamer (TBA) to improve its anticoagulation activity and binding affinity. A set of amino acid conjugates, termed amino acid-nucleic acid hybrids or ANHs, was synthesized and incorporated into a TBA loop sequences. We found that substitutions with hydrophobic amino acids in the loop region possessed significantly enhanced antithrombin activity, up to 3-fold higher than the native TBA. We investigated the correlations between thrombin-binding affinity and the features of our amino-acid conjugates using experimental techniques including circular dichroism spectroscopy, surface plasmon resonance assay, and molecular modeling. The present study demonstrates a systematic approach to aptamer design based on amino-acid characteristics, allowing the development of advanced aptamers.
- リンク情報
- ID情報
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- DOI : 10.1021/acsbiomaterials.1c00060
- PubMed ID : 33756075