Crystal structure of a ferredoxin reductase for the CYP199A2 system from Rhodopseudomonas palustris.
Cytochrome P450-199A2 from Rhodopseudomonas palustris oxidizes para-substituted benzoic acids and may play a role in lignin and aromatic acid degradation pathways in the bacterium. CYP199A2 has an associated [2Fe-2S] ferredoxin, palustrisredoxin (Pux) but not a ferredoxin reductase. A genome search identified the palustrisredoxin reductase (PuR) gene. PuR was produced in Escherichia coli and shown to be a flavin-dependent protein that supports efficient electron transfer from NADH to Pux, thu...Expand abstract
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