Cysteine's sulfur is split between glutathione & iron-sulfur clusters, crucially enhancing CD8⁺ T cell growth, effector function, & anti-tumor immunity. PMID:42276031, Cell 2026, @Cell https://www.cell.com/cell/fulltext/S0092-8674(26)00570-2 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
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