Poljak A, et al. (2003) (original) (raw)

Reference: Poljak A, et al. (2003)

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Abstract

When yeast cells are exposed to sublethal concentrations of oxidants, they adapt to tolerate subsequent lethal treatments. Here, we show that this adaptation involves tolerance of oxidative damage, rather than protection of cellular constituents. o- and m-tyrosine levels are used as a sensitive measure of protein oxidative damage and we show that such damage accumulates in yeast cells exposed to H(2)O(2) at low adaptive levels. Glutathione represents one of the main cellular protections against free radical attack and has a role in adaptation to oxidative stress. Yeast mutants defective in glutathione metabolism are shown to accumulate significant levels of o- and m-tyrosine during normal aerobic growth conditions.

Reference Type

Journal Article | Research Support, Non-U.S. Gov't

Authors

Poljak A, Dawes IW, Ingelse BA, Duncan MW, Smythe GA, Grant CM

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