Format

Send to

Choose Destination
See comment in PubMed Commons below
Eur J Med Genet. 2010 Sep-Oct;53(5):268-73. doi: 10.1016/j.ejmg.2010.07.006. Epub 2010 Jul 15.

Four novel RSK2 mutations in females with Coffin-Lowry syndrome.

Author information

1
Children's Memorial Health Institute, Department of Medical Genetics, Warsaw, Poland. d.jurkiewicz@czd.pl

Abstract

Coffin-Lowry syndrome (CLS) is an X-linked semi-dominant disorder caused by mutations in the RSK2 gene and characterized by moderate to severe mental retardation, characteristic facial features, skeletal deformities, and tapering fingers in males. Females are usually much more mildly and variably affected thus more difficult to diagnose. In this study, molecular genetic analysis was carried out in four female patients presenting features of Coffin-Lowry syndrome. The probands were sporadic cases with no affected males in their families. The molecular analysis of the RSK2 gene revealed four novel mutations, including two frameshift and one missense mutation identified by sequencing, and one large deletion detected by multiplex ligation-dependent probe amplification (MLPA) analysis. Females exhibited a random X-chromosome inactivation pattern. To our knowledge, this is the first report of applying MLPA in the diagnostics of CLS and the first description of a large deletion in a CLS female. These results support including screening for large rearragements in the genetic analysis of female CLS patients.

PMID:
20637903
DOI:
10.1016/j.ejmg.2010.07.006
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center