09/02/2026
C terminal deletions collectively account for 10% of Rett cases. But not all of them actually cause Rett symptoms and a recently published paper by Jacky Guy explains why. Jacky was the scientist behind the 2007 Bird lab reversal paper which was the impetus for RSRT’s focus on genetic medicines. Nearly twenty years later, Jacky is still uncovering MECP2’s secrets.
Two nearly identical mutations produce two different endings to the MeCP2 protein. One is harmless. The other marks the protein for destruction, and accounts for roughly 10% of Rett syndrome cases.