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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Free Radic Biol Med. 2014 Aug 1;0:171–182. doi: 10.1016/j.freeradbiomed.2014.07.037

Figure 3.

Figure 3

An example of a PDI-first pathway in oxidative protein folding. In the first phase the unfolded reduced protein is oxidized by PDIox. Here, reduced PDI is regenerated by the FAD-linked sulfhydryl oxidase, Ero1, with the formation of hydrogen peroxide. PDIred is then involved in correction of mispaired disulfides prior to the iterative emergence of the native protein fold.