A new CUL4B variant associated with a mild phenotype and an exceptional pattern of leukoencephalopathy

Autor: Marie-Christine Reinert, Holger Thiele, Susann Weissbach, Peter Nürnberg, Thorsten Rosenbaum, Ralph Krätzner, Jutta Gärtner, Janine Altmüller
Rok vydání: 2017
Předmět:
Zdroj: American Journal of Medical Genetics Part A. 173:2803-2807
ISSN: 1552-4833
1552-4825
DOI: 10.1002/ajmg.a.38390
Popis: Cabezas type of X-linked syndromic intellectual disability (MRXSC; MIM300354) is a rare X-linked recessive intellectual disability characterized primarily by intellectual disability, short stature, hypogonadism, and gait abnormalities. It is caused by a wide spectrum of hemizygous variants in CUL4B. In a 10-year-old boy with an exceptional leukoencephalopathy pattern, we identified a new missense variant p.Leu329Gln in CUL4B using "Mendeliome" sequencing. However, his phenotype does not include the severe characteristics currently known for MRXSC. We discuss the divergent phenotype and propose a potential connection between the different CUL4B variants and corresponding phenotypes in the context of the current literature as well as 3D homology modeling.
Databáze: OpenAIRE