Beal, Peter A. and Dervan, Peter B. (1992) Recognition of double helical DNA by alternate strand triple helix formation. Journal of the American Chemical Society, 114 (13). pp. 4976-4982. ISSN 0002-7863. doi:10.1021/ja00039a004. https://resolver.caltech.edu/CaltechAUTHORS:20160510-141948690
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Abstract
The triplet specificities and required strand orientations of two classes of DNA triple helices can be combined to target double helical sequences containing all four base pairs by alternate strand triple helix formation. This allows for the use of oligonucleotides containing only natural 3'-5' phosphodiester linkages to simultaneously bind both strands of double helical DNA in the major groove. The stabilities and structures of these alternate strand triple helices depend on whether the binding site sequence is 5'-(purine)_m(pyrimidine)_n-3' or 5'-(pyrimidine)_m(purine)_n-3'. The sequence type 5'-(purine)_m-(pyrimidine)_n-3' was targeted with an oligonucleotide consisting of a pyrimidine domain and a purine domain linked by a 3'-5' phosphodiester. To bind the duplex sequence type 5'-(pyrimidine)_m(purine)_n-3', the third strand requires at least two nucleotides linking binding domains at the site of crossover in the major groove. A new class of oligonucleotides capable of binding mixed duplex sequences by crossovers in the major groove may be possible.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1992 American Chemical Society. Received January 27, 1992. We are grateful for generous support from the National Institutes of Health (HG 00329) and a DOE predoctoral fellowship for P.A.B. | |||||||||
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| Issue or Number: | 13 | |||||||||
| DOI: | 10.1021/ja00039a004 | |||||||||
| Record Number: | CaltechAUTHORS:20160510-141948690 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160510-141948690 | |||||||||
| Official Citation: | Recognition of double helical DNA by alternate strand triple helix formation Peter A. Beal and Peter B. Dervan Journal of the American Chemical Society 1992 114 (13), 4976-4982 DOI: 10.1021/ja00039a004 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 66939 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Victoria Brennan | |||||||||
| Deposited On: | 19 May 2016 17:20 | |||||||||
| Last Modified: | 11 Nov 2021 00:24 |
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