Fungi - Candida albicans - Research News, Data, Publications & Aproaches - ERG11 Mutations - Telomeres - Nuclear Biology & Nuclear Chemistry Aproaches - Heme-Dependant Nuclear Chemistry - Non-Elaborate Posts - Post 7


Recent proteomic studies have revealed that heme does not act in isolation within the nucleus but interacts with chromatin-modifying enzymes. Heme-binding motifs have been identified in nuclear histone demethylases and deacetylases, suggesting that intracellular heme levels can modulate chromatin states.

In C. albicans, the Sir2p deacetylase, responsible for subtelomeric silencing, exhibits NAD⁺-dependent activity that indirectly depends on the redox balance maintained by heme-mediated metabolism. Thus, the nuclear chemistry of ERG11 extends beyond its own catalysis; it co-regulates the physicochemical environment of chromatin, ensuring that enzymatic reactions and transcriptional architectures remain in dynamic harmony. The heme molecule, therefore, becomes both a chemical reagent and a chromatin signal.

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