RT Journal Article SR Electronic(1) A1 Lewandowska, Irmina A1 BaliƄska, Malgorzata A1 Paszewski, AndrzejYR 1997 T1 Identification of new regulatory genes controlling synthesis of folate-dependent enzymes in Aspergillus nidulans JF Microbiology, VO 143 IS 10 SP 3273 OP 3278 DO https://doi.org/10.1099/00221287-143-10-3273 PB Microbiology Society, SN 1465-2080, AB Prototrophic revertants of a metH2 strain of Aspergillus nidulans which is impaired in the regulation of synthesis of folate-dependent enzymes were isolated and six of them analysed. In three of the isolates reversion was the result of an intragenic suppressor mutation in the metH locus. In the remaining strains suppressor mutations occurred in independent genes. These genes, designated folA, folB and folC, are linked and located in chromosome VI. Mutations in these genes render synthesis of some folate enzymes, particularly folylpolyglutamate synthetase, insensitive to methionine-mediated repression., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-143-10-3273