APOBEC3B and plasma cell myeloma: Importantly, aurintricarboxylic acid and myricetin, which are known APOBEC3 deaminase inhibitors32, also allowed for 3D-PCR amplification of the mCherry gene at lower denaturation temperatures in myeloma cells (Fig. 4g), suggesting that this cell-based model could be used for screening APOBEC3B inhibitors.