... The Ikaros family protein Eos associates with C-terminal-binding protein corepressorsJose´Perdomo and Merlin CrossleyDepartment of Biochemistry, G08, University of Sydney, NSW, AustraliaEos ... cloning of 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 ... Sin3[19] and Mi-2 [20], which are components of deacetylase and chromatin remodelling complexes.Correspondence to M. Crossley, Department of Biochemistry,G08, University of Sydney, NSW, Australia,...