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This study investigates how loss of the ER transporter SLC33A1 affects glutathione redox balance and protein cysteine reactivity in the endoplasmic reticulum. Oxidized cysteine reactivity profiling and whole-cell proteomics were performed in Slc33a1 knockout KPK cells and cDNA-complemented controls....
ORGANISM(S): Mus musculus (Mouse) 
2026-02-13 | PXD074382 | Pride
Keap1 deficiency results in a genotype-specific dependency on Slc33a1
SLC33A1 exports oxidized glutathione to maintain endoplasmic reticulum redox homeostasis [KPK_Slc33a1_KO_TUNC]
Approximately 20-30% of human lung adenocarcinomas (LUAD) harbor loss-of-function (LOF) mutations in Kelch-like ECH Associated-Protein 1 (KEAP1), which lead to hyperactivation of the antioxidant program downstream from the nuclear factor, erythroid 2-like 2 (NRF2) transcription factor and correlates...
ORGANISM(S): Mus musculus 
2020-04-13 | GSE145945 | GEO
Endoplasmic reticulum stress and redox homeostasis influence protein folding and unfolded protein response signaling. To examine transcriptional responses associated with Slc33a1 loss and complementation, we performed RNA sequencing of KPK cells with Slc33a1 knockout and cells complemented with eith...
ORGANISM(S): Mus musculus 
2026-02-12 | GSE318827 | GEO
The endoplasmic reticulum (ER) requires an oxidative environment to support the efficient maturation of secretory and membrane proteins. This is in part established by glutathione, a redox-active metabolite present in reduced (GSH) and oxidized (GSSG) forms. The ER maintains a higher GSSG:GSH ratio ...
ORGANISM(S): Mus musculus (Mouse) 
2026-02-19 | PXD074465 | Pride
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