Expression of NF‐κB2 in human T‐cell lines. Cell lysates prepared from indicated human T‐cell lines were characterized by a Western blot analysis using anti‐NF‐κB2/p100, anti‐Tax, or anti‐tubulin antibody. The positions of NF‐κB2/p100 and p52 are indicated. The three adult T‐cell leukemia (ATL)‐derived cell lines KK1, KOB, and ST1 are IL‐2‐dependent cell lines, while the others including TL‐OmI and MT‐1 are IL‐2‐independent lines. HTLV‐1, human T‐cell leukemia virus type 1.