Objective
We (partners 01, 02 and 03) have previously localized genes for both X-linked and autosomal dominant retinitis pigmentosa, this group of degenerative eye diseases representing the most prevalent form of hereditary retinopathy and a major cause of visual handicap. Our results initially implicated rhodopsin as a causative gene. Rhodopsin is the rod photoreceptor pigment and the first component of the visual transduction cycle. As a result eight mutations within that gene have now been identified in autosomal dominant forms of the disease. We now seek support for a multidisciplinary, multi-centre effort, involving a coalescence of expertize in the areas of population genetics, molecular biology and clinical ophthalmology for analysis of material from a minimum of four hundred dominant pedigrees of European origin. Our pre-determined objectives are to identify additional mutations within the rhodopsin gene, and to screen for mutations in the rod transducin, cellular retinol binding proteins (I and II) and cyclic-GMP phosphodiesterase genes. These genes are involved either in the transport of retinol, or directly in the rod visual transduction cycle. In view of rhodopsin's demonstrated involvement such genes are prime etiologic candidates for autosomal dominant RP. Genetic linkage studies designed to localize additional causative genes, and already at an advanced stage, will be concluded on three other large dominant pedigrees as a coordinated effort. We thus intend to identify the majority of mutations causing autosomal dominant retinitis pigmentosa within the European population. This work should result in an immediate and radical improvement in diagnosis clinical evaluation and counselling for this most important group of inherited disorders.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences biological sciences genetics mutation
- medical and health sciences clinical medicine ophthalmology retinopathy
- natural sciences biological sciences molecular biology
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Coordinator
2 DUBLIN
Ireland
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