Abstract
Cytochrome P450 (CYP) 147F1 from Streptomyces peucetius is a new CYP subfamily of that has been identified as ω-fatty acid hydroxylase. We describe the identification of CYP147F1 as a fatty acid hydroxylase by screening for the substrate using a substrate binding assay. Screening of substrates resulted in the identification of fatty acid groups of compounds as potential hits for CYP147F1 substrates. Fatty acids from C10:0 to C18:0 all showed type I shift spectra indicating their potential as substrates. Among several fatty acids tested, lauric acid, myrsitic acid, and palmitic acid were used to characterize CYP147F1. CYP147F1 activity was reconstituted using putidaredoxin reductase and putidaredoxin from Pseudomonas putida as surrogate electron transfer partners. Kinetic parameters, including the dissociation constant, Km, NADH consumption assay, production formation rate, and coupling efficiency for CYP147F1 were also determined.
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