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Cited by 389

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The Dynamic Character of the G-Quadruplex Element in the c-MYC Promoter and Modification by TMPyP4

Seenisamy, Jeyaprakashnarayanan, Rezler, Evonne M., Powell, Tiffanie J., Tye, Denise, Gokhale, Vijay, Joshi, Chandana Sharma, Siddiqui-Jain, Adam, Hurley, Laurence H.·2004·Journal of the American Chemical Society

Abstract

The nuclease hypersensitivity element III1 (NHE III1) upstream of the P1 and P2 promoters of c-MYC controls 80-90% of the transcriptional activity of this gene. The purine-rich strand in this region can form a G-quadruplex structure that is a critical part of the silencer element for this promoter. We have demonstrated that this G-quadruplex structure can form a mixture of four biologically relevant parallel-loop isomers, which upon interaction with the cationic porphyrin TMPyP4 are converted to mixed parallel/antiparallel G-quadruplex structures.

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Authors
Seenisamy, J., Rezler, E. M., Powell, T. J., Tye, D., Gokhale, V., Joshi, C. S., Siddiqui-Jain, A., & Hurley, L. H.
Venue
Journal of the American Chemical Society
Published
2004-06-22
Volume
126
Issue
28
Pages
8702-8709
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2035667154
Cited by
389
References
0
FWCI
7.76
Type
journal article
Language
en
Open access
closed

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