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Biochem/physiol Actions

The CYP4F3B isoform catalyzes the 20-hydroxylation of leukotriene B₄.

Cytochrome P450 is a heterogeneous family of isozymes whose primary function is to oxidize small molecules, both as a function of intermediary metabolism (e.g., fatty acids) and to detoxify exogenous compounds (drugs or toxins). Some isoforms have narrow substrate specificity, while others are promiscuous.

Physical form

Solution in 100 mM potassium phosphate buffer, pH 7.4.

Unit Definition

One unit will reduce 1 nanomole of cytochrome C per minute at pH 7.4 at 37 deg C.