Source: Active recombinant C-terminal His-tagged enzyme expressed in E. coli ? MW: ~69 kDa ? A bifunctional zinc metalloenzyme that converts LTA4 into LTB4, a potent neutrophil chemoattractant; potential drug target for a variety of indications associated with leukocyte infiltration to sites of inflammation; has application for the screening of inhibitors of LTB4 synthesis