Grundlinger et al. show that Aspergillus fumigatus AFUA_3G03390 gene product, SidJ (aspfu-q4wf56) is involved in hydrolysis of siderophore fusarinine C. It is the first functionally characterized member of the family Duf_1749. Bud emergence 46 (BEM46) protein from Neurospora crassa (neucr-q7sdx9) and homologues in eukaryotes are characterized by Kumar et al.: clues for function of members of the LYsophospholipase_carboxylesterase family