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GPX4 can be also modified post-transcriptionally by different processes such as ubiquitination of several lysine residues including Lys 47, 80, 107, 135, 162, 167 and 191, phosphorylation of Ser13, 40 and Tyr96, but also succinylation at Cys93 or alkylation at Cys107

In head and neck cancer (HNC), dihydrolipoamide dehydrogenase (DLD) gene silencing blocked cystine deprivation-induced ferroptosis, displaying decreased lipid ROS and mitochondrial iron levels (Shin et al., 2020)

Glycine: An amino acid essential for glutathione synthesis, provided through magnesium and selenium glycinate.*

Stress Management Chronic stress depletes glutathione levels by increasing oxidative stress and inflammatory processes