A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations.
Progressive retinal atrophy (PRA) in dogs, the canine equivalent of retinitis pigmentosa (RP) in humans, is characterised by vision loss due to degeneration of the photoreceptor cells in the retina, eventually leading to complete blindness. It affects more than 100 dog breeds, and is caused by numer...
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2011
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oai:doaj.org-article:6f4a1a3403ff4a888635cf551bbb08342021-11-18T06:51:13ZA frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations.1932-620310.1371/journal.pone.0021452https://doaj.org/article/6f4a1a3403ff4a888635cf551bbb08342011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21738669/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Progressive retinal atrophy (PRA) in dogs, the canine equivalent of retinitis pigmentosa (RP) in humans, is characterised by vision loss due to degeneration of the photoreceptor cells in the retina, eventually leading to complete blindness. It affects more than 100 dog breeds, and is caused by numerous mutations. RP affects 1 in 4000 people in the Western world and 70% of causal mutations remain unknown. Canine diseases are natural models for the study of human diseases and are becoming increasingly useful for the development of therapies in humans. One variant, prcd-PRA, only accounts for a small proportion of PRA cases in the Golden Retriever (GR) breed. Using genome-wide association with 27 cases and 19 controls we identified a novel PRA locus on CFA37 (p(raw) = 1.94×10(-10), p(genome) = 1.0×10(-5)), where a 644 kb region was homozygous within cases. A frameshift mutation was identified in a solute carrier anion exchanger gene (SLC4A3) located within this region. This variant was present in 56% of PRA cases and 87% of obligate carriers, and displayed a recessive mode of inheritance with full penetrance within those lineages in which it segregated. Allele frequencies are approximately 4% in the UK, 6% in Sweden and 2% in France, but the variant has not been found in GRs from the US. A large proportion of cases (approximately 44%) remain unexplained, indicating that PRA in this breed is genetically heterogeneous and caused by at least three mutations. SLC4A3 is important for retinal function and has not previously been associated with spontaneously occurring retinal degenerations in any other species, including humans.Louise M DownsBerit Wallin-HåkanssonMike BoursnellStefan MarklundÅke HedhammarKatarina TruvéLouise HübinetteKerstin Lindblad-TohTomas BergströmCathryn S MellershPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 6, p e21452 (2011) |
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Medicine R Science Q Louise M Downs Berit Wallin-Håkansson Mike Boursnell Stefan Marklund Åke Hedhammar Katarina Truvé Louise Hübinette Kerstin Lindblad-Toh Tomas Bergström Cathryn S Mellersh A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| description |
Progressive retinal atrophy (PRA) in dogs, the canine equivalent of retinitis pigmentosa (RP) in humans, is characterised by vision loss due to degeneration of the photoreceptor cells in the retina, eventually leading to complete blindness. It affects more than 100 dog breeds, and is caused by numerous mutations. RP affects 1 in 4000 people in the Western world and 70% of causal mutations remain unknown. Canine diseases are natural models for the study of human diseases and are becoming increasingly useful for the development of therapies in humans. One variant, prcd-PRA, only accounts for a small proportion of PRA cases in the Golden Retriever (GR) breed. Using genome-wide association with 27 cases and 19 controls we identified a novel PRA locus on CFA37 (p(raw) = 1.94×10(-10), p(genome) = 1.0×10(-5)), where a 644 kb region was homozygous within cases. A frameshift mutation was identified in a solute carrier anion exchanger gene (SLC4A3) located within this region. This variant was present in 56% of PRA cases and 87% of obligate carriers, and displayed a recessive mode of inheritance with full penetrance within those lineages in which it segregated. Allele frequencies are approximately 4% in the UK, 6% in Sweden and 2% in France, but the variant has not been found in GRs from the US. A large proportion of cases (approximately 44%) remain unexplained, indicating that PRA in this breed is genetically heterogeneous and caused by at least three mutations. SLC4A3 is important for retinal function and has not previously been associated with spontaneously occurring retinal degenerations in any other species, including humans. |
| format |
article |
| author |
Louise M Downs Berit Wallin-Håkansson Mike Boursnell Stefan Marklund Åke Hedhammar Katarina Truvé Louise Hübinette Kerstin Lindblad-Toh Tomas Bergström Cathryn S Mellersh |
| author_facet |
Louise M Downs Berit Wallin-Håkansson Mike Boursnell Stefan Marklund Åke Hedhammar Katarina Truvé Louise Hübinette Kerstin Lindblad-Toh Tomas Bergström Cathryn S Mellersh |
| author_sort |
Louise M Downs |
| title |
A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| title_short |
A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| title_full |
A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| title_fullStr |
A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| title_full_unstemmed |
A frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses SLC4A3 as a candidate gene for human retinal degenerations. |
| title_sort |
frameshift mutation in golden retriever dogs with progressive retinal atrophy endorses slc4a3 as a candidate gene for human retinal degenerations. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2011 |
| url |
https://doaj.org/article/6f4a1a3403ff4a888635cf551bbb0834 |
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