TRUA_DEIRA Formation of pseudouridine at positions 38, 39 and 40 in the anticodon stem and loop of transfer RNAs (By similarity). tRNA pseudouridine(38-40) synthase tRNA-uridine isomerase I tRNA pseudouridine synthase A MDADPPRLYAPPPGFTRLRLTVAWDGRDYAGWQEQRNAVSVQETLQTALHALGGEGALRPVSAGRTDAGVHAEAMPLHWDVPTTFRVPLVQLPRALNAWLPASVSVLSAEVAPAGFHARFSCTERRYVYRLWVAPQRHPLWAGRALHVPGPLDAEAMNRAAQSLIGLHDFAAFATREDRQTVRDLLRLEVQPQGELWDIHVAGESFLRHMVRGLVGTLLLVGQGKLGAAEVEGILASRERARAGANVPPGGLYFAGAEYGVRRVEGRSGNGGEPGTHRGR truA 280 tRNA pseudouridylate synthase I DR_2290