Cooke triplet | 07th Expansion | Joule expansion | Jefferson National Expansion Memorial | ''Spiral Expansion of Muscles in Action'', plaster, photograph published in 1914 and 1919, in ''Cubists and Post-Impressionism'', by Arthur Jerome Eddy | Sommerfeld expansion | ''q''-expansion | Post-Newtonian expansion | Pennsylvania Transit Expansion Coalition | Metric expansion of space | metric expansion of space | Expansion Records | Expansion card | 2013 CFL Expansion Draft |
The most common mutation giving rise to this syndrome is a triplet expansion of CCG in the 5' untranslated region which leads to a silencing of the gene.