SLC35B2 and B-cell chronic lymphocytic leukemia: A schematic representation of the IGHV, IGHD and IGHJ subgroups expressed in B cells from mice of each genotype and those used by the expanded B cell clones of the Traf2DNxBCL2-tg+/+ mice with CLL/SLL are shown in Figure 3 and Supplementary Figure 1.