Histone acetylation is believed to relax chromatin to make the DNA more accessible for recognition and binding by the transcriptional machinery.
Is it true that histone acetylation is believed to relax chromatin to make the DNA more accessible for recognition and binding by the transcriptional machinery?
Yes. Histone acetylation neutralizes the positive charge on histone tails, reducing their affinity for negatively charged DNA and resulting in a relaxed chromatin structure that permits transcriptional machinery access.
Verdict: SUPPORTED · 2 sources for, 0 against · Last checked
The claim is specific, well-established in molecular biology, and directly supported by multiple retrieved studies showing that histone acetylation correlates with chromatin relaxation and increased DNA accessibility for transcription.
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A, K., D, J., S, P., M, P., H, C., N, K., M, A., AN, A., P, M., RK, G., WA, A., PK, D., & S, S. (2026). A Novel Epigenetic Mechanism of Intestinal NHE3 Gene Regulation by Histone Acetylation.. doi.org. https://doi.org/10.3390/ijms27188096
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S, Y., J, Y., X, S., & C, H. (2026). Epigenetic regulation of HIV-1 transcription: insights into latency mechanisms and therapeutic strategies.. doi.org. https://doi.org/10.3389/fcimb.2026.1926141
What does the evidence say?
The claim is specific, well-established in molecular biology, and directly supported by multiple retrieved studies showing that histone acetylation correlates with chromatin relaxation and increased DNA accessibility for transcription.
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