Pentachlorophenol degradation pathway of S. chlorophenolicum ATCC 39723. PcpB, PCP 4-monooxygenase; PcpD, tetrachloro-p-benzoquinone reductase; PcpC, TeCH reductive dehalogenase; PcpA, DiCH 1,2-dioxygenase; PcpE, chloromaleylacetate reductase; TeCH, tetrachloro-p-hydroquinone; TriCH, trichloro-p-hydroquinone; DiCH, 2,6-dichloro-p-hydroquinone.