4.7 Article

DNA tetraplex structure formation from human telomeric repeat motif (TTAGGG):(CCCTAA) in nanocavity water pools of reverse micelles

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 40, Pages 4815-4817

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc30622k

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Funding

  1. Ministry of Education, Culture, Sports, Science and Technology, Japan
  2. Hirao Taro Foundation of the Konan University Association for Academic Research
  3. Grants-in-Aid for Scientific Research [24655161, 22655057] Funding Source: KAKEN

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In an equimolar ratio the human telomeric oligonucleotides d[AGGG(TTAGGG)(3)] and d[(CCCTAA)(3)CCCT] formed mixed structures of duplex and tetraplex in bis(2-ethylhexyl) sulfosuccinate reverse micelles; only the duplex was observed in aqueous buffer. This finding suggests that heterogeneous confined media in the cell nucleus might induce a significant fraction of the telomeric region of genomic DNA to adopt non-canonical tetraplex structure.

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