Primary Amine-Clustered DNA Aptamer for DNA-Protein Conjugation Catalyzed by Microbial Transglutaminase

研究成果: ジャーナルへの寄稿記事

15 引用 (Scopus)

抜粋

DNA-protein conjugates are promising biomolecules for use in areas ranging from therapeutics to analysis because of the dual functionalities of DNA and protein. Conjugation requires site-specific and efficient covalent bond formation without impairing the activity of both biomolecules. Herein, we have focused on the use of a microbial transglutaminase (MTG) that catalyzes the cross-linking reaction between a glutamine residue and a primary amine. In a model bioconjugation, a highly MTG-reactive Gln (Q)-donor peptide (FYPLQMRG, FQ) was fused to enhanced green fluorescent protein (FQ-EGFP) and a primary amine-clustered DNA aptamer was enzymatically synthesized as a novel acyl-acceptor substrate of MTG, whose combination leads to efficient and convenient preparation of DNA-protein conjugates with high purity. Dual functionality of the obtained DNA-EGFP conjugate was evaluated by discrimination of cancer cells via c-Met receptor recognition ability of the DNA aptamer. The DNA aptamer-EGFP conjugate only showed fluorescence toward cells with c-Met overexpression, indicating the retention of the biochemical properties of the DNA and EGFP in the conjugated form.

元の言語英語
ページ(範囲)2954-2961
ページ数8
ジャーナルBioconjugate Chemistry
28
発行部数12
DOI
出版物ステータス出版済み - 12 20 2017

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering
  • Pharmacology
  • Pharmaceutical Science
  • Organic Chemistry

フィンガープリント Primary Amine-Clustered DNA Aptamer for DNA-Protein Conjugation Catalyzed by Microbial Transglutaminase' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用