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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
Comparison of MS profiles in pseudo-gel view of control E. coli (green dot) and of E. coli with blocked synthesis of GSH (red cross). The peak intensity is expressed in a gray scale—darker color of peak indicates higher peak intensity. The utilized mass range was 1–20 kDa.