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TRIPLEX DNA STRUCTURES
Abstract
A DNA triplex is formed when pyrimidine or purine bases occupy the major groove of the DNA double Helix forming Hoogsteen pairs with purines of the Watson-Crick basepairs. Intermolecular triplexes are formed between triplex forming oligonucleotides (TFO) and target sequences on duplex DNA. Intramolecular triplexes are the major elements of H-DNAs, unusual DNA structures, which are formed in homopurine-homopyrimidine regions of supercoiled DNAs. TFOs are promising gene-drugs, which can be used in an anti-gene strategy, that attempt to modulate gene activity in vivo. Numerous chemical modifications of TFO are known. In peptide nucleic acid (PNA), the sugarphosphate backbone is replaced with a protein-like backbone. PNAs form P-loops while interacting with duplex DNA fonning triplex with one of DNA strands leaving the other strand displaced. Very unusual recombination or parallel triplexes, or R-DNA, have been assumed to form under RecA protein in the course of homologous recombination.
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Citations
Cited by
Bidichandani, S. I., Ashizawa, T., & Patel, P. I. (1998) · The American Journal of Human Genetics · doi:10.1086/301680 · Cited by 381
siRNA-based approaches in cancer therapy
Devi, G. R. (2006) · Cancer Gene Therapy · doi:10.1038/sj.cgt.7700931 · Cited by 353
Triplex DNA Nanostructures: From Basic Properties to Applications
Hu, Y., Cecconello, A., Idili, A., Ricci, F., & Willner, I. (2017) · Angewandte Chemie International Edition · doi:10.1002/anie.201701868 · Cited by 336
Sakamoto, N., Chastain, P. D., Parniewski, P., Ohshima, K., Pandolfo, M., Griffith, J. D., & Wells, R. D. (1999) · Molecular Cell · doi:10.1016/s1097-2765(00)80474-8 · Cited by 313
On the wrong DNA track: Molecular mechanisms of repeat-mediated genome instability
Khristich, A. N., & Mirkin, S. M. (2020) · Journal of Biological Chemistry · doi:10.1074/jbc.rev119.007678 · Cited by 289
Self-citation
Metadata
- Authors
- Frank-Kamenetskii, M. D., & Mirkin, S. M.
- Venue
- Annual Review of Biochemistry
- Publisher
- Annual Reviews
- Published
- 1995-06
- Volume
- 64
- Issue
- 1
- Pages
- 65-95
- ISSN
- 0066-4154 (ISSN-L)
- 1545-4509
- OpenAlex
- W2123017921
- Cited by
- 808
- References
- 0
- FWCI
- 11.61
- Type
- journal article
- Language
- en
- Open access
- closed
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- Frank-Kamenetskii, M. D., & Mirkin, S. M. (1995). TRIPLEX DNA STRUCTURES. Annual Review of Biochemistry. https://doi.org/10.1146/annurev.bi.64.070195.000433
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