De Novo Mutations of RERE Cause a Genetic Syndrome with Features that Overlap Those Associated with Proximal 1p36 Deletions

Brieana Fregeau, Bum Jun Kim, Andrés Hernández-García, Valerie K Jordan, Megan T Cho, Rhonda E Schnur, Kristin G Monaghan, Jane Juusola, Jill A Rosenfeld, Elizabeth Bhoj, Elaine H Zackai, Stephanie Sacharow, Kristin Barañano, Daniëlle G M Bosch, Bert B A de Vries, Kristin Lindstrom, Audrey Schroeder, Philip James, Peggy Kulch, Seema R LalaniMieke M van Haelst, Koen L I van Gassen, Ellen van Binsbergen, A James Barkovich, Daryl A Scott, Elliott H Sherr

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Deletions of chromosome 1p36 affect approximately 1 in 5,000 newborns and are associated with developmental delay, intellectual disability, and defects involving the brain, eye, ear, heart, and kidney. Arginine-glutamic acid dipeptide repeats (RERE) is located in the proximal 1p36 critical region. RERE is a widely-expressed nuclear receptor coregulator that positively regulates retinoic acid signaling. Animal models suggest that RERE deficiency might contribute to many of the structural and developmental birth defects and medical problems seen in individuals with 1p36 deletion syndrome, although human evidence supporting this role has been lacking. In this report, we describe ten individuals with intellectual disability, developmental delay, and/or autism spectrum disorder who carry rare and putatively damaging changes in RERE. In all cases in which both parental DNA samples were available, these changes were found to be de novo. Associated features that were recurrently seen in these individuals included hypotonia, seizures, behavioral problems, structural CNS anomalies, ophthalmologic anomalies, congenital heart defects, and genitourinary abnormalities. The spectrum of defects documented in these individuals is similar to that of a cohort of 31 individuals with isolated 1p36 deletions that include RERE and are recapitulated in RERE-deficient zebrafish and mice. Taken together, our findings suggest that mutations in RERE cause a genetic syndrome and that haploinsufficiency of RERE might be sufficient to cause many of the phenotypes associated with proximal 1p36 deletions.

Original languageEnglish
Pages (from-to)963-970
Number of pages8
JournalAmerican journal of human genetics
Volume98
Issue number5
DOIs
Publication statusPublished - 5 May 2016

Cite this

Fregeau, B., Kim, B. J., Hernández-García, A., Jordan, V. K., Cho, M. T., Schnur, R. E., ... Sherr, E. H. (2016). De Novo Mutations of RERE Cause a Genetic Syndrome with Features that Overlap Those Associated with Proximal 1p36 Deletions. American journal of human genetics, 98(5), 963-970. https://doi.org/10.1016/j.ajhg.2016.03.002