{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nAlthough none of the provided abstracts directly mention SNORD101, a synthesis of the studies reveals critical regulatory pathways in cellular metabolism that may intersect with post‐transcriptional mechanisms typically associated with small nucleolar RNAs. In one study, the maintenance of iron homeostasis by iron regulatory proteins was shown to be essential for embryonic development and cellular iron management, while in skeletal muscle, exercise-induced oxidative stress was found to modulate aconitase activity through redox and phosphorylation events. These findings underline how precise control over metabolic enzymes, such as mitochondrial aconitase, is crucial for balancing energy production and mitigating oxidative damage."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nOther investigations highlight the role of mitochondrial aconitase as a central node in preserving mitochondrial DNA integrity and in driving cellular responses to oxidative stress. In alveolar epithelial cells, interactions between aconitase and mitochondrial DNA repair enzymes help prevent oxidant-induced apoptosis, while in heart mitochondria, acetylation-dependent activation of aconitase was demonstrated in a high-fat diet model, establishing a link between post-translational modifications and metabolic flux. These studies collectively emphasize how modulations of enzyme activity ensure mitochondrial function and cellular survivability under stress."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "3"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nFurthermore, additional data extend the significance of mitochondrial aconitase to disease contexts; for example, nitric oxide–mediated metabolic rewiring in inflammatory macrophages illustrates how aconitase is functionally targeted to alter the tricarboxylic acid cycle, while studies in sperm capacitation reveal that sialylation at a key residue on aconitase leads to its inactivation and a shift from oxidative phosphorylation to glycolysis. In parallel, reduced aconitase levels have been linked to neurodegeneration in Parkinson’s disease and aggressive tumor behavior in non–small cell lung cancer, underscoring a multifaceted role in regulating iron homeostasis and cell proliferation. These diverse findings collectively underscore the importance of tight regulation of mitochondrial metabolism via post-transcriptional and post-translational modifications."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "5", "end_ref": "8"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn sum, although SNORD101 is not explicitly featured in these abstracts, small nucleolar RNAs like SNORD101 are known to mediate post‐transcriptional modifications that can influence the stability and maturation of various RNAs. It is plausible to speculate that SNORD101 could participate in fine-tuning the expression or processing of transcripts coding for key metabolic enzymes—including mitochondrial aconitase—or other regulatory molecules within these pathways. Further investigation is warranted to determine whether SNORD101 exerts a direct regulatory role over these interconnected metabolic networks.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Sophia R Smith, Manik C Ghosh, Hayden Ollivierre-Wilson, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Complete loss of iron regulatory proteins 1 and 2 prevents viability of murine zygotes beyond the blastocyst stage of embryonic development."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Blood Cells Mol Dis (2006)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.bcmd.2005.12.006"}], "href": "https://doi.org/10.1016/j.bcmd.2005.12.006"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "16480904"}], "href": "https://pubmed.ncbi.nlm.nih.gov/16480904"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Shi-Jin Zhang, Marie E Sandström, Johanna T Lanner, et al. 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"}, {"type": "b", "children": [{"type": "t", "text": "Lysine Acetylation Activates Mitochondrial Aconitase in the Heart."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Biochemistry (2015)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1021/acs.biochem.5b00375"}], "href": "https://doi.org/10.1021/acs.biochem.5b00375"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "26061789"}], "href": "https://pubmed.ncbi.nlm.nih.gov/26061789"}]}, {"type": "r", "ref": 5, "children": [{"type": "t", "text": "Erika M Palmieri, Marieli Gonzalez-Cotto, Walter A Baseler, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Nitric oxide orchestrates metabolic rewiring in M1 macrophages by targeting aconitase 2 and pyruvate dehydrogenase."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Nat Commun (2020)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1038/s41467-020-14433-7"}], "href": "https://doi.org/10.1038/s41467-020-14433-7"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "32019928"}], "href": "https://pubmed.ncbi.nlm.nih.gov/32019928"}]}, {"type": "r", "ref": 6, "children": [{"type": "t", "text": "Ana Izabel Silva Balbin Villaverde, Rachel A Ogle, Peter Lewis, et al. 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