text:  TCF3-PBX1 transduced BCL6fl/fl mouse bone marrow pre-B cells transduced with Cre for BCL6 deletion, repeat 2 TCF3-PBX1 transduced BCL6fl/fl mouse bone marrow pre-B cells sample type: TCF3-PBX1 transduced BCL6fl/fl mouse bone marrow pre-B cells with Cre-mediated BCL6 deletion; genetic background: BCL6; cell type: bone marrow pre-B cells; genotype: Cre-mediated BCL6 deletion