CASC3 and tuberculosis: DprE1 is an essential decaprenylphosphoryl D‐ribose epimerase, an enzyme involved in arabinogalactan and lipoarabinomannan biogenesis (Kolly et al., 2014a) and is the target of BTZ, one of the most potent and best characterized candidates in the TB drug development pipeline (Makarov et al., 2009; Brecik et al., 2015).