Analysis of WASP protein expression in 4 males with intermittent X-linked thrombocytopenia.

(top) Pedigrees of the 2 families with intermittent X-linked thrombocytopenia. (bottom) Western-blot analysis of WASP protein expression in platelets and in Epstein-Barr virus–transformed lymphoblastoid B cell lines (LCL) derived from the patients and from a normal control (C).