c. WT CPAP (WT-cells IP) but not Seckel variant CPAP (Seckel cells IP) co-immunopurifies with CDC components from asynchronously grown WT and Seckelfibroblastscell extracts. The IP samples were adjusted so that equivalent amounts of immunoprecipitatedCPAP were used in samples. Seckel (5x) and WT (1x) fibroblast cell extracts were used as input controls to show the efficacy of the various antibodies. Note that CPAP abundance in Seckel cells is ~5 times lower than that of WT cells. CentrosomalproteinsCap350 and ODF2 do not co-purify with CPAP indicating the specificity of CPAP interaction with CDC components. 