Cover: X-chromosome inactivation ratios affect wild-type MeCP2 expression within mosaic Rett syndrome and Mecp2–/+ mouse
brain. Laser scanning cytometry images of a female Mecp2–/+ mouse brain (top) and a wild-type mouse brain (bottom). Pixels
represent individual cells colored based on quantitative immunofluorescence of MeCP2: MeCP2-negative (blue), MeCP2lo (green)
and MeCP2hi (red). Background image is a high-resolution fluorescent micrograph of MeCP2 immunofluorescence (red) and
nuclear counterstain (green) within a Mecp2–/+ mouse cerebrum. Mecp2 mutant-expressing cells affect the expression of wild-type
MeCP2 in heterozygous females by a non-cell-autonomous mechanism. See Article by Braunschweig et al., in this issue, pp.1275–1286.
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