... Aiolos and Helios [6–8], and of Eos and Pegasus [9], revealed the existence of a family of related factors. Ikaros, Aiolos and Helios are all abundantlyexpressed in the haematopoietic system and ... shown in (B) and (C). The prominent bands seen above the bands of interest (arrowheads) cor-respond to the heavy chain of the antibodies used because of incom-plete covalent coupling of the antibodies ... representation of Eos constructs tested againstCtBP in the yeast two-hybrid system. Numbers indicate the aminoacids in the Eos sequence, the filled rectangle indicates the position of the PEDLA motif, and...