ArticleGenetics in medicine : official journal of the American College of Medical Genetics2020
Resolving the dark matter of ABCA4 for 1054 Stargardt disease probands through integrated genomics and transcriptomics.
Article in Genetics in medicine : official journal of the American College of Medical Genetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.
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97 citing papers in PubMed, 140 citations in OpenAlex.
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- Personalised genomic strategies improve diagnostic yield in inherited retinal dystrophies: a stepwise, patient-centred approach.Eye (London, England) · 2025Article
- RNA-based diagnostic studies in genetics: Review and guidance from a multidisciplinary French network.European journal of human genetics : EJHG · 2025Review
- Stargardt's Connected Research Network Inaugural Meeting: Landscape Review and Horizon Scanning of Stargardt Disease.Translational vision science & technology · 2025Review
- Stargardt's Disease: Molecular Pathogenesis and Current Therapeutic Landscape.International journal of molecular sciences · 2025Review
- Comprehensive functional splicing analysis of non-canonical CNGB3 variants using in vitro minigene splice assays.The Journal of pathology · 2025Article
- Improving personalised genetic counselling forMedizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2025Article
- The implementation of genome sequencing in rare genetic diseases diagnosis: a pilot study from the Hong Kong genome project.The Lancet regional health. Western Pacific · 2025Article
- ABCA4 Deep Intronic Variants Contributed to Nearly Half of Unsolved Stargardt Cases With a Milder Phenotype.Investigative ophthalmology & visual science · 2025Article
- Genetic Screening of a Nonsyndromic Amelogenesis Imperfecta Patient Cohort Using a Custom smMIP Reagent for Selective Enrichment of Target Loci.Human mutation · 2025Article
- Deciphering the impact of ABCA4 genetic variants of unknown significance in inherited retinal disease through computational and functional approaches.Advances in protein chemistry and structural biology · 2025Review
- Targeted sequencing with single-molecule molecular inversion probes highlights a gap in understanding the cause of Fuchs endothelial corneal dystrophy.Molecular vision · 2025Article
- Lipopeptide-mediated Cas9 RNP delivery: A promising broad therapeutic strategy for safely removing deep-intronic variants inMolecular therapy. Nucleic acids · 2024Article
- Screening of Inherited Retinal Disease Patients in a Low-Resource Setting Using an Augmented Next-Generation Sequencing Panel.Molecular genetics & genomic medicine · 2024Article
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- 18-Years of single-centre DNA testing in over 7000 index cases with inherited retinal dystrophies and optic neuropathies.Scientific reports · 2024Article
37 more citing papers are in PubMed but not listed here.
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Authors and funding
75 authors at 20 institutions in 21 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeMissing heritability in human diseases represents a major challenge, and this is particularly true for ABCA4-associated Stargardt disease (STGD1). We aimed to elucidate the genomic and transcriptomic variation in 1054 unsolved STGD and STGD-like probands.
methodsSequencing of the complete 128-kb ABCA4 gene was performed using single-molecule molecular inversion probes (smMIPs), based on a semiautomated and cost-effective method. Structural variants (SVs) were identified using relative read coverage analyses and putative splice defects were studied using in vitro assays.
resultsIn 448 biallelic probands 14 known and 13 novel deep-intronic variants were found, resulting in pseudoexon (PE) insertions or exon elongations in 105 alleles. Intriguingly, intron 13 variants c.1938-621G>A and c.1938-514G>A resulted in dual PE insertions consisting of the same upstream, but different downstream PEs. The intron 44 variant c.6148-84A>T resulted in two PE insertions and flanking exon deletions. Eleven distinct large deletions were found, two of which contained small inverted segments. Uniparental isodisomy of chromosome 1 was identified in one proband.
conclusionDeep sequencing of ABCA4 and midigene-based splice assays allowed the identification of SVs and causal deep-intronic variants in 25% of biallelic STGD1 cases, which represents a model study that can be applied to other inherited diseases.
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