Abstract
Congenital heart defects (CHDs) have a neonatal incidence of 0.8-1% (refs. 1,2). Despite abundant examples of monogenic CHD in humans and mice, CHD has a low absolute sibling recurrence risk (∼2.7%), suggesting a considerable role for de novo mutations (DNMs) and/or incomplete penetrance. De novo protein-truncating variants (PTVs) have been shown to be enriched among the 10% of 'syndromic' patients with extra-cardiac manifestations. We exome sequenced 1,891 probands, including both syndromic CHD (S-CHD, n = 610) and nonsyndromic CHD (NS-CHD, n = 1,281). In S-CHD, we confirmed a significant enrichment of de novo PTVs but not inherited PTVs in known CHD-associated genes, consistent with recent findings. Conversely, in NS-CHD we observed significant enrichment of PTVs inherited from unaffected parents in CHD-associated genes. We identified three genome-wide significant S-CHD disorders caused by DNMs in CHD4, CDK13 and PRKD1. Our study finds evidence for distinct genetic architectures underlying the low sibling recurrence risk in S-CHD and NS-CHD.
| Original language | English |
|---|---|
| Pages (from-to) | 1060-5 |
| Number of pages | 6 |
| Journal | Nature Genetics |
| Volume | 48 |
| Issue number | 9 |
| Early online date | 1 Aug 2016 |
| DOIs | |
| Publication status | Published - Sept 2016 |
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Dive into the research topics of 'Distinct genetic architectures for syndromic and nonsyndromic congenital heart defects identified by exome sequencing'. Together they form a unique fingerprint.Projects
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HGU Core Award Apr 12 - MAr 18
Hastie, N. (Principal Investigator), Adams, I. (Co-investigator), Baldock, R. (Co-investigator), Bickmore, W. (Co-investigator), Caceres, J. (Co-investigator), Dorin, J. (Co-investigator), FitzPatrick, D. (Co-investigator), Haley, C. (Co-investigator), Hill, B. (Co-investigator), Jackson, I. (Co-investigator), Jackson, A. (Co-investigator), Kudla, G. (Co-investigator), Meehan, R. (Co-investigator) & Patton, E. (Co-investigator)
1/04/12 → 31/03/18
Project: Research
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