CCAR1 and breast cancer: We generated and characterized stable, neomycin-resistant human breast cancer (HBC) MDA-MB-468 and cervical cancer Hela cells that express myc-His-tagged CARP-1 protein where S626, T627, and/or T629 were substituted to alanines (CARP-1 S626T627/AA and CARP-1 S626T627T629/AAA) as detailed in Methods (Figure 1B; Supplementary Figures S1A, C).