Ichthyosis and erythrokeratoderma

Gene: DSP

Green List (high evidence)

DSP (desmoplakin)
EnsemblGeneIds (GRCh38): ENSG00000096696
EnsemblGeneIds (GRCh37): ENSG00000096696
OMIM: 125647, Gene2Phenotype
DSP is in 15 panels

2 reviews

Rebecca Foulger (Genomics England curator)

Comment when marking as ready: 1 Green review plus >3 variants in unrelated families reported for various OMIM disorders featuring keratodermas including (OMIM:612908, OMIM:615821, OMIM:605676). Prior genetic testing of desmosomal genes (which includes DSP) is required for 'Striate keratoderma with woolly hair'. Not currently a confirmed DD gene for any disorders but plenty of literature linking DSP to palmoplantar keratoderma.
Created: 5 Jan 2017, 1:55 p.m.
Comment on mode of inheritance: -Keratosis palmoplantaris striata II (PPKS2, OMIM:612908) is caused by heterozygous mutations in DSP.
-Dilated cardiomyopathy with woolly hair, keratoderma, and tooth agenesis (OMIM:615821) is caused by heterozygous mutations in DSP.
-Cardiomyopathy, dilated, with woolly hair and keratoderma (OMIM:605676) is caused by homozygous mutations in DSP.
Created: 5 Jan 2017, 1:41 p.m.

Edel O'Toole (Queen Mary University of London)

Green List (high evidence)

Can be heterozygous, compound heterozygous and homozygous
Created: 16 Nov 2015, 7:38 p.m.

Mode of inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal

Phenotypes
Striate keratoderma with woolly hair and cardiomyopathy; striate keratoderma; diffuse keratoderma; lethal acantholytic epidermolysis bullosa; skin fragility, alopecia, follicular hyperkeratoses and keratoderma; oligodontia or hypodontia

Publications

Details

Mode of Inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Sources
  • Expert Review Green
Phenotypes
  • Skin fragility-woolly hair syndrome
  • Keratosis palmoplantaris striata II, 612908
  • lethal acantholytic epidermolysis bullosa, 609638
  • Striate keratoderma with woolly hair and cardiomyopathy
  • Skin fragility-woolly hair syndrome, 607655
  • oligodontia or hypodontia
  • alopecia, follicular hyperkeratoses and keratoderma
  • diffuse keratoderma
  • Epidermolysis bullosa, lethal acantholytic
  • striate keratoderma
  • CARVAJAL SYNDROME
  • Arrhythmogenic right ventricular dysplasia 8, 607450
  • Keratosis palmoplantaris striata II
  • Dilated cardiomyopathy with woolly hair and keratoderma, 605676
OMIM
125647
Clinvar variants
Variants in DSP
Penetrance
None
Publications
Panels with this gene

History Filter Activity

3 Jan 2019, Gel status: 4

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes

Ellen McDonagh (Genomics England Curator)

gene: DSP was added gene: DSP was added to Ichthyosis and erythrokeratoderma. Sources: Expert Review Green Mode of inheritance for gene: DSP was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: DSP were set to 22795705; 11841538; 16628197; 19924139; 11063735; 20940358; 26303123; 10594734; 20738328; 16175511; 25516398 Phenotypes for gene: DSP were set to Skin fragility-woolly hair syndrome; Keratosis palmoplantaris striata II, 612908; lethal acantholytic epidermolysis bullosa, 609638; Striate keratoderma with woolly hair and cardiomyopathy; Skin fragility-woolly hair syndrome, 607655; oligodontia or hypodontia; alopecia, follicular hyperkeratoses and keratoderma; diffuse keratoderma; Epidermolysis bullosa, lethal acantholytic; striate keratoderma; CARVAJAL SYNDROME; Arrhythmogenic right ventricular dysplasia 8, 607450; Keratosis palmoplantaris striata II; Dilated cardiomyopathy with woolly hair and keratoderma, 605676