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Cell Press, American Journal of Human Genetics, 3(98), p. 592, 2016

DOI: 10.1016/j.ajhg.2016.02.016

Cell Press, American Journal of Human Genetics, 1(95), p. 126, 2014

DOI: 10.1016/j.ajhg.2014.06.013

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Rare Variants in NR2F2 Cause Congenital Heart Defects in Humans

Journal article published in 2014 by Saeed Al Turki, Saeed Al Turki, Ashok K. Manickaraj, Catherine L. Mercer, Sebastian Ss Gerety, Marc-Phillip Hitz, Sarah Lindsay, Lisa C. A. D’Alessandro, Lc D'Alessandro, G. Jawahar Swaminathan, Gj Jawahar Swaminathan, Jamie Bentham, Anne-Karin Arndt, Jacoba Louw, Jeroen Breckpot and other authors.
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Abstract

Congenital heart defects (CHDs) are the most common birth defect worldwide and are a leading cause of neonatal mortality. Nonsyndromic atrioventricular septal defects (AVSDs) are an important subtype of CHDs for which the genetic architecture is poorly understood. We performed exome sequencing in 13 parent-offspring trios and 112 unrelated individuals with nonsyndromic AVSDs and identified five rare missense variants (two of which arose de novo) in the highly conserved gene NR2F2, a very significant enrichment (p = 7.7 × 10(-7)) compared to 5,194 control subjects. We identified three additional CHD-affected families with other variants in NR2F2 including a de novo balanced chromosomal translocation, a de novo substitution disrupting a splice donor site, and a 3 bp duplication that cosegregated in a multiplex family. NR2F2 encodes a pleiotropic developmental transcription factor, and decreased dosage of NR2F2 in mice has been shown to result in abnormal development of atrioventricular septa. Via luciferase assays, we showed that all six coding sequence variants observed in individuals significantly alter the activity of NR2F2 on target promoters.