Figure 3 and Figure S1 display representative images of PALB2 and IQGAP1 immunolocalization in breast cancer control references (cases CC2 and CC1) and in PALB2-mutated breast cancer (case P-T1, c.1240C>T; p.Arg414*) labeled with antibodies binding to N-terminal or C-terminal domains. Here, PALB2 is linked to breast cancer.