Fungi - Candida albicans - Research News, Data, Publications & Aproaches - ERG11 Mutations - Telomeres - Telomeric Looping - Nuclear Biology & Nuclear Chemistry Aproaches - Nuclear Architecture in the Regulation of ERG11 - Non-Elaborrate Posts - Post 6
While chromatin looping is mechanical in its geometry, it is profoundly chemical in its regulation. The histone residues that mediate telomeric interactions undergo acetylation, methylation, and phosphorylation in response to intracellular redox states.
The NAD+/NADH ratio modulates Sir2p-dependent deacetylation at telomeres, directly influencing loop stability (Todd & Selmecki, 2020). Similarly, ROS generated by azole exposure oxidize cysteine residues on histone-modifying enzymes, altering their binding kinetics. In this way, the telomere–ERG11 interaction acts as a molecular barometer of nuclear redox chemistry — its architecture breathing with the chemistry of stress and adaptation.
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