A unique homozygous WRAP53 Arg298Trp mutation underlies dyskeratosis congenita in a Chinese Han family

Missense mutation in a patient with X-linked dyskeratosis congenita.

We report the case of a 40-year-old male patient with dyskeratosis congenita(DKC). Sequencing of the DKC1 gene revealed an inherited missense mutation in base 1050 (GC), changing methionine to isoleucine. This is the third description of a mutation in codon 350 (exon 11), changing a very well conserved amino acid in the pseudouridine synthase (PUA) domain of dyskerin.

Recurrent A353V mutation in a Thai family with X-linked dyskeratosis congenita.

Cancer in dyskeratosis congenita.

Dyskeratosis congenita (DC) is a rare inherited bone marrow failure syndrome. The spectrum of cancer susceptibility in this disorder of telomere biology has not been described. There were more than 500 cases of DC reported in the literature from 1910 to 2008; the National Cancer Institute (NCI) prospective DC cohort enrolled 50 cases from 2002 to 2007. Sixty cancers were reported in 52 literatu...

[Dyskeratosis congenita].

Dyskeratosis congenita is an inherited disorder that usually presents in males, consisting of the triad of leukoplakia of the mucous membranes, nail dystrophy and skin pigmentation. Whilst most cases are X-linked, autosomal dominant and recessive forms have been reported. The significance of the condition lies in premature mortality arising from either bone marrow failure or malignant change wi...

Dyskeratosis congenita Authors: Doctors

Key-words Name of the disease/Included diseases Definition Differential diagnosis Aetiology/pathophysiology Clinical description Diagnostic methods Epidemiology Genetic counselling Antenatal diagnosis Management including treatment Unresolved questions References Abstract Classical dyskeratosis congenita (DC) is a rare multisystem disorder with a prevalence estimated to 1 in 1,000,000. DC is ch...