Figure 2.
Loss of CAML causes a cut phenotype. (A) High incidence of anaphase failure in CAML−/− MEFs. Chromosomes were visualized by transducing MEFs with retrovirus encoding mRFP-H2B and followed by time-lapse microscopy. Time-lapse images showing a CAMLfl/fl MEF undergoing normal mitosis and two CAML−/− MEFs with distinct cut phenotypes. Scale bar = 10 µm. (B) Incidence of cut phenotypes in the indicated MEFs. (C) CAML−/− metaphase spread illustrating absence of diplochromosomes. (D) Topo IIα accumulates normally at inner centromeric regions of CAML−/− prometaphases. Monastrol-treated CAML−/− and CAMLfl/fl MEFs were immunostained for centromeres and Topo IIα, while DNA was stained with Hoechst.