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Proposed role of PcpF in the PCP degradation pathway. PcpC catalyzes two consecutive steps in PCP degradation. Both PcpC C14S and PcpC-ox catalyze the formation of GS-TriCH and GS-DiCH conjugates. PcpF channels the conjugates back to the PCP degradation pathway. GS-TriCH, glutathionyl-TriCH; GS-DiCH, glutathionyl-DiCH; PcpC-ox, oxidatively damaged PcpC; PcpF, GS-quinol lyase. Other abbreviations are defined in the legend for Fig. 1.
