RB1 and neoplasm: We tested K14E7 Fancd2−/− malignant clonal lines, tumor cell lines removed form sites of solid tumors formed by K14E7 Fancd2−/− clonal cells, and both LTBMC-derived IL-3 dependent and stromal cell lines from each genotype for the nuclear and/or cytoplasmic location of E7, p53, and Rb.