Francia I, Hernádi Z, Szabolcs M, Hernádi F
Central Research Laboratory, University Medical School, Debrecen, Hungary.
Acta Biochim Biophys Hung. 1987;22(4):491-6.
R-factor curing capacity of 5-fluorouracil (5-FU) was studied. Well detectable increase in UV-resistance was found in E. coli K12 AB1157 strain and its recB-, recC-, recF- mutants harbouring R46 R-factor. After treatment with 5-FU, these strains lost not only the antibiotic resistance coded for R46 R-factor but their UV-radioresistance, as well.