disease has basis in dysfunction of FANCD2 Fanconi anemia complementation group D2 DOID:0111083 FA4 FAD2 FANCD2 Fad2 Fanconi Anemia, complementation group D Fanconi anemia caused by mutations of the FANCD2 gene. This gene is involved in the repair of DNA double-strand breaks, both by homologous recombination and single-strand annealing. Fanconi anemia, complementation group D2 Fanconi pancytopenia type 4 Fanconi pancytopenia, type 4 MONDO:0009214 NCIT:C125706 OMIM:227646 UMLS:C3160738 Fanconi anemia