FIG. 6.

Nuclear subcellular localization of Btf_S is altered by E1B 19K, Bcl-2, and Btf_L. (A) HeLa cells were transfected with expression plasmid pcDNA3-Myc-Btf_S alone or with pCMV E1B 19K or pcDNA3–Bcl-2 as indicated. The cells were fixed 24 h posttransfection and double stained against Myc and E1B 19K or Bcl-2. Magnification, ×1,000. (B) HeLa cells expressing Bcl-x_L were transfected with pcDNA3-Myc-Btf_S and stained against Myc 24 h posttransfection. Values represent the percentages of nuclear Btf_S expression (Btf_S/total Btf_S) in these cells.