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. Author manuscript; available in PMC: 2013 Sep 17.
Published in final edited form as: Chem Res Toxicol. 2012 Jul 3;25(9):1842–1861. doi: 10.1021/tx3000494

Figure 5.

Figure 5

Overlay of the MS spectra of 2-h and 2-d-X (m/z 433.14) generated after 10 min of UV-irradiation (λ = 253.7 nm) of GSSG (500 µM) in H2O (black) and D2O (gray). X stands for deuterium incorporation at Cys[αC], Cys[βC], or Gly[αC].