“…The 3′‐UTRs of these mRNAs have, respectively, two, five and seven copies of the RBP10 consensus recognition motif (Figure a). All three mRNAs are more abundant, and considerably better translated, in procyclic forms than in growing bloodstream forms (Antwi et al, ; Dejung et al, ; Fadda et al, ; Jensen et al, ), and their expression is also lower in metacyclic forms than in procyclic forms (Christiano et al, ). When ZC3H20 or ZC3H21 are tethered (via a lambdaN‐peptide–boxB interaction) to a reporter mRNA in bloodstream forms, expression is stimulated, whereas tethering of ZC3H22 leads to repression (Erben, Fadda, Lueong, Hoheisel, & Clayton, ; Lueong, Merce, Fischer, Hoheisel, & Erben, ).…”