Fanconi's anemia: genetic and molecular aspects of the defect.

Several features of Fanconi's anemia (FA) are reported: relative inefficiency in the processing of DNA cross-links and monoadducts, hypomutability at the two loci analysed, complementation of the cytogenetic defect by cocultivation with mouse cells and homology of the FA group A with the mouse cellular mutant MCS attempts to clone and characterise a DNA fragment which complements the defect. The relation between observed features and predisposition to leukemia are discussed.