Abstract
Exogenous and endogenous agents including products generated by oxidative stress, chemotherapeutics and bacterial lipids, activate multiple cellular signaling pathways, resulting either in mitogenesis or in apoptosis. Glutathione transferases (GSTs) appear not only to be prominent catalysts of detoxication reactions, but also to play a pivotal role in signaling by interacting with multiple proteins in pathways induced by cellular stress. Using two peptide libraries (a 9-mer and a 15-mer) displayed on phage, novel GST-peptide interactions were identified using human GST A1-1, GST P1-1 and GST M2-2 as targets. The isolated peptides have high sequence similarity with proteins such as TRAF4-associated factor 1, G protein-coupled receptor MRGX3, tumor necrosis factor superfamily (member 9), and c-Jun N-terminal kinase 3.
Published Version
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