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The interaction of proanthocyanidins with DNA molecules studied by atomic force microscopy and spectroscopic method.
Li, Jingchao; Sun, Congcong; Lin, Yamei; Zhi, Hongxin; Fu, Yujie; Liu, Zhiguo.
Affiliation
  • Li J; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
  • Sun C; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
  • Lin Y; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
  • Zhi H; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
  • Fu Y; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
  • Liu Z; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, People's Republic of China; College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China; Engineering Research
Ultramicroscopy ; 230: 113393, 2021 11.
Article in En | MEDLINE | ID: mdl-34607224
ABSTRACT
The interactions of the naturally available botanicals with DNA molecules have received considerable attention owing to the potential to develop for medicinal agents. In this study, the interaction of proanthocyanidins with DNA molecules was studied by atomic force microscopy (AFM) and spectroscopic method. The AFM observation indicated that proanthocyanidins induced DNA molecules from double helix chains to the thick rope and toroids. The heights of the formed DNA structures are more than eight times than that of DNA double helix. Spectroscopic measurement results revealed that proanthocyanidins intercalated between the base pairs of DNA in the intercalative binding mode, which resulted in unwinding the DNA helix, twisting the DNA strands and finally transforming into the supercoiled DNA structures. All these results implied that DNA molecule is an important interaction target of proanthocyanidins, and the formed compact DNA structures have biological significance on the gene expression and regulation.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Proanthocyanidins Language: En Journal: Ultramicroscopy Year: 2021 Type: Article
Fulltext
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Proanthocyanidins Language: En Journal: Ultramicroscopy Year: 2021 Type: Article