Fig. 1.
The p12I protein binds the acidic region of IL-2R β between residues 330 and 350.
(A) Schematic representation of the IL-2R β-chain truncation and deletion mutants. Middle panels show controls for expression of the IL-2R β truncation mutants and p12I. (B) Coprecipitation of p12I with the IL-2R β mutants. IP indicates immunoprecipitation; WB, Western blot.