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Magyari, M., et al
In sequence terms, that Cterminal block is exactly the kind of motif that enables membrane penetration, The region: ArgArgSerGlyGlyLysArgProProProArgArgArgGlnArgArgLysLysArgGlyOH` has all the hallmarks of a CPP: High local positive charge density Arginine is the key driver the guanidinium group forms bidentate hydrogen bonds with phosphate and sulfate groups on the cell surface (heparan sulfate proteoglycans, phospholipid headgroups)
Furthermore, stabilization of NRF2 in cancer cells harboring oncogenic RAS induces genes encoding stress-responsive enzymes, including GPXs, NAD(P)H:quinone oxidoreductase-1 (NQO1), glutamate-cysteine ligase (GCL), GR, heme oxygenase-1 (HO-1), and glutathione S-transferase (GST), some of which are directly involved in cellular glutathione biosynthesis and ROS detoxification 22,23,24
Infection of bat and human intestinal organoids by SARS-CoV-2
