RNA polymerase II (Pol II) transcription through chromatin is accompanied by formation of small intranucleosomal DNA loops. Pol II captured within a small loop drives accumulation of DNA supercoiling, facilitating further transcription. DNA breaks relieve supercoiling and induce Pol II arrest, allowing detection of DNA damage hidden in chromatin structure.
CITATION STYLE
Gerasimova, N. S., Pestov, N. A., Kulaeva, O. I., Clark, D. J., & Studitsky, V. M. (2016). Transcription-induced DNA supercoiling: New roles of intranucleosomal DNA loops in DNA repair and transcription. Transcription, 7(3), 91–95. https://doi.org/10.1080/21541264.2016.1182240
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