Fig. 5
From: Role of protein repair enzymes in oxidative stress survival and virulence of Salmonella
Model: Different stresses cause unfolding and covalent modifications in polypeptide chain resulting in protein inactivation and consequently affect cellular survival. Chaperones can refold unfolded proteins. Protein repair enzymes (PIMT, MSR, and PPIase) can repair covalently modified amino acids. The repair of damaged proteins not only restores their functions but also enhance cellular survival under stress conditions