OMIA:002265-9615 : Darier disease in Canis lupus familiaris (dog)

Categories: Integument (skin) phene

Links to possible relevant human trait(s) and/or gene(s) in OMIM: 124200 (trait) , 108740 (gene)

Links to relevant human diseases in MONDO:

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal dominant

Considered a defect: yes

Key variant known: yes

Year key variant first reported: 2020

Cross-species summary: Keratosis follicularis

Species-specific name: Also described as epidermal acantholysis

Molecular basis: Linek et al. (2020): "Whole genome sequencing of the affected [Irish Terrier] dog was performed, and the [comparative] functional candidate genes for Darier disease (ATP2A2) and Hailey-Hailey disease (ATP2C1) were investigated. The analysis revealed a heterozygous SINE insertion into the ATP2A2 gene, at the end of intron 14, close to the boundary of exon 15. Analysis of the ATP2A2 mRNA from skin of the affected dog demonstrated a splicing defect and marked allelic imbalance, suggesting nonsense-mediated decay of the resulting aberrant transcripts." Kiener et al. (2023) investigated a 9 year old Shih Tzu with characteristic clinical and histopathologic findings of Darier disease: "Whole genome sequencing of the affected dog identified a heterozygous missense variant, p.N809H, affecting an evolutionarily conserved amino acid residue of the ATP2A2 protein."

Clinical features: Sueki et al. (1997) reported skin lesions on the ventral chest of a single 7 month old English Setter and on the head and knee of two of his crossbred offspring: "skin lesions were characterized by hairless, hypertrophic plaques ... The surface of the lesion was rough, with occasional serous crusting and peripheral scaling .... Pruritus was minimal. The lesions enlarged slowly, and no additional lesion developed." Linek et al. (2020) reported a "4-month-old female Irish Terrier ... with a well demarcated ulcerative and crusting lesion in the right ear canal. ... The lesion was successfully treated .... Over the course of three years, the dog additionally developed three dermal nodules of up to 4 cm in diameter that were excised and healed without complications."

Pathology: Sueki et al. (1997): "Histopathologically, these lesions [in the English Setter] showed epidermal hyperplasia with individual enlargement of keratinocytes, extensive acantholysis and minimal dyskeratosis. Ultrastructural analysis revealed that attachment plaques of desmosomes were still intact while some tonofilaments were detached from them in early lesions; there were well-developed microvilli at dissociated cell surfaces." Linek et al. (2020): "clinical, histological, immunohistological, and ultrastructural findings in a male English Setter and two of its female offspring were initially reported as Hailey-Hailey disease [Shanley et al., 1993; Sueki et al., 1997]. A subsequent study found depletion of the ATP2A2-gated stores in cultured keratinocytes from one of these dogs and suggested that these dogs had Darier disease and not Hailey-Hailey disease as previously reported [Müller et al., 2006]." Pathohistology of the Irish Terrier "revealed multiple infundibular cysts extending from the upper dermis to the subcutis. The cysts were lined by squamous epithelium, which presented with abundant acantholysis of suprabasal keratinocytes. Infundibular cysts represent a novel finding not previously reported in Darier patients." (Linek et al., 2020)

Breeds: English Setter (Dog) (VBO_0200495), Irish Terrier (Dog) (VBO_0200704), Shih Tzu (Dog) (VBO_0201223).
Breeds in which the phene has been documented. (If a likely causal variant has been documented for the phene, see the variant table breeds in which the variant has been reported).

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
ATP2A2 ATPase, Ca++ transporting, cardiac muscle, slow twitch 2 Canis lupus familiaris 26 NC_051830.1 (8406466..8467508) ATP2A2 Homologene, Ensembl , NCBI gene


By default, variants are sorted chronologically by year of publication, to provide a historical perspective. Readers can re-sort on any column by clicking on the column header. Click it again to sort in a descending order. To create a multiple-field sort, hold down Shift while clicking on the second, third etc relevant column headers.

WARNING! Inclusion of a variant in this table does not automatically mean that it should be used for DNA testing. Anyone contemplating the use of any of these variants for DNA testing should examine critically the relevant evidence (especially in breeds other than the breed in which the variant was first described). If it is decided to proceed, the location and orientation of the variant sequence should be checked very carefully.

Since October 2021, OMIA includes a semiautomated lift-over pipeline to facilitate updates of genomic positions to a recent reference genome position. These changes to genomic positions are not always reflected in the ‘acknowledgements’ or ‘verbal description’ fields in this table.

OMIA Variant ID Breed(s) Variant Phenotype Gene Allele Type of Variant Source of Genetic Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Year Published PubMed ID(s) Acknowledgements
1192 Irish Terrier (Dog) Darier disease ATP2A2 insertion, gross (>20) Naturally occurring variant CanFam3.1 26 g.8200944_8200945insN[(205)] c.2098-3_2098-2insN[(205)] p.(T700Vfs*6) NM_001003214.1; NP_001003214.1; Linek et al. (2020): "a heterozygous SINE insertion [~205bp] into the ATP2A2 gene, at the end of intron 14, close to the boundary of exon 15", giving rise to NP_001003214.1:p.(Thr700Valfs*6) 2020 32354065
1533 Shih Tzu (Dog) Darier disease ATP2A2 missense Naturally occurring variant UU_Cfam_GSD_1.0 26 g.8434781A>C c.2425A>C p.(N809H) NM_001003214.1; NP_001003214.1 2023 36883421

Cite this entry

Nicholas, F. W., Tammen, I., & Sydney Informatics Hub. (2023). OMIA:002265-9615: Online Mendelian Inheritance in Animals (OMIA) [dataset].


Note: the references are listed in reverse chronological order (from the most recent year to the earliest year), and alphabetically by first author within a year.

2023 Kiener, S., Yang, C., Rich, N., Jagannathan, V., Mauldin, E.A., Leeb, T. :
Heterozygous ATP2A2 missense variant identified in a Shih Tzu with Darier disease. Anim Genet , 2023. Pubmed reference: 36883421. DOI: 10.1111/age.13314.
2020 Linek, M., Doelle, M., Leeb, T., Bauer, A., Leuthard, F., Henkel, J., Bannasch, D., Jagannathan, V., Welle, M.M. :
ATP2A2 SINE insertion in an Irish Terrier with Darier disease and associated infundibular cyst formation. Genes (Basel) 11:481, 2020. Pubmed reference: 32354065. DOI: 10.3390/genes11050481.
2009 Olivry, T., Linder, K.E. :
Dermatoses affecting desmosomes in animals: a mechanistic review of acantholytic blistering skin diseases. Vet Dermatol 20:313-26, 2009. Pubmed reference: 20178467. DOI: 10.1111/j.1365-3164.2009.00821.x.
2006 Müller, E.J., Caldelari, R., Kolly, C., Williamson, L., Baumann, D., Richard, G., Jensen, P., Girling, P., Delprincipe, F., Wyder, M., Balmer, V., Suter, M.M. :
Consequences of depleted SERCA2-gated calcium stores in the skin. J Invest Dermatol 126:721-31, 2006. Pubmed reference: 16397524. DOI: 10.1038/sj.jid.5700091.
1997 Sueki, H., Shanley, K., Goldschmidt, M.H., Lazarus, G.S., Murphy, G.F. :
Dominantly inherited epidermal acantholysis in dogs, simulating human benign familial chronic pemphigus (Hailey-Hailey disease) British Journal of Dermatology 136:190-196, 1997. Pubmed reference: 9068730.
1993 Shanley, K.J., Goldschmidt, M.H., Sueki, H., Lazarus, G., George, M. :
Canine benign familial chronic pemphigus. Advances in Veterinary Dermatology 2:353–365, 1993.

Edit History

  • Created by Frank Nicholas on 14 May 2020
  • Changed by Frank Nicholas on 14 May 2020
  • Changed by Imke Tammen2 on 17 Apr 2021
  • Changed by Imke Tammen2 on 22 Apr 2022
  • Changed by Imke Tammen2 on 09 Mar 2023