OMIA 001521-9615 : Generalized PRA in Canis lupus familiaris

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal Recessive

Considered a defect: yes

Key variant known: yes

Year key variant first reported: 2010

Cross-species summary: This disorder has been renamed in OMIA on the basis of the review by Miyadera et al. (2012)

Species-specific symbol: (gPRA^SPD)

Breed: Schapendoes.

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
CCDC66 coiled-coil domain containing 66 Canis lupus familiaris 20 NC_006602.3 (33758846..33714224) CCDC66 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.

Breed(s) Variant Phenotype Gene Allele Type of Variant Reference Sequence Chr. g. or m. c. or n. p. Verbal Description EVA ID Year Published PubMed ID(s) Acknowledgements
Schapendoes Generalized PRA CCDC66 insertion, small (<=20) 20 "a 1-bp insertion in exon 6 leading to a stop codon" 2010 19777273


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.
2012 Miyadera, K., Acland, G.M., Aguirre, G.D. :
Genetic and phenotypic variations of inherited retinal diseases in dogs: the power of within- and across-breed studies. Mamm Genome 23:40-61, 2012. Pubmed reference: 22065099. DOI: 10.1007/s00335-011-9361-3.
2010 Dekomien, G., Vollrath, C., Petrasch-Parwez, E., Boevé, M.H., Akkad, D.A., Gerding, W.M., Epplen, J.T. :
Progressive retinal atrophy in Schapendoes dogs: mutation of the newly identified CCDC66 gene. Neurogenetics 11:163-74, 2010. Pubmed reference: 19777273. DOI: 10.1007/s10048-009-0223-z.
2007 Lippmann, T., Jonkisz, A., Dobosz, T., Petrasch-Parwez, E., Epplen, JT., Dekomien, G. :
Haplotype-defined linkage region for gPRA in Schapendoes dogs. Mol Vis 13:174-80, 2007. Pubmed reference: 17327822.

Edit History

  • Created by Frank Nicholas on 02 Nov 2010
  • Changed by Frank Nicholas on 28 Sep 2011
  • Changed by Frank Nicholas on 02 Dec 2011
  • Changed by Frank Nicholas on 07 Dec 2011
  • Changed by Frank Nicholas on 12 Dec 2011