TP53 and infection: Moreover, pancreatic epithelial cells from the LSL-KRAS-G12D LSL-p53-R172H (KP) mice transformed in vitro by infection with retroviral particles encoding Cre recombinase (KP-Cre) also expressed higher FAM83A levels relative to the control KP-pB cells (infected with control pBabe vector-expressing retrovirus; Fig. 7c).