Figure 2.
IP3R proteins are down-regulated in cells expressing Bcl-XL. (A) Western blots of cell extracts made from the indicated cells. Filters were prepared as described in Materials and Methods and probed with antibodies against type 1 IP3R, Bcl-XL, and actin, respectively. The numbers at left indicate the molecular markers. (B) Immunoblot analysis of whole cell extracts from the cells indicated on the top. The filters were probed with the antibodies indicated on the right. The positions of molecular mass markers are indicated on the left.