Abstract
Among the neglected tropical diseases, leishmaniasis stands out for its worldwide distribution and diversity of symptoms. Cutaneous leishmaniasis (CL), for instance, is endemic in 18 countries, but the available drugs to fight it have high toxicity and low patient adherence. In order to overcome this, dilemma drugs that target enzymes which are absent in the human host, such as Leishmania braziliensis sterol C24-methyltransferase (SMT-C24, EC 2.1.1.41), are needed. However, medicinal chemistry efforts toward this goal have been hampered by the low yield of soluble recombinant SMT-C24 afforded by currently available expression systems. Herein, we show that a combination of molecular biology and chromatographic strategies may increase the yield of LbSMT-C24 in up to fivefold. These results lay the ground for future investigation of this enzyme as a drug target.
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