Scrib and puf60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-Number variant

Andrew Dauber, Christelle Golzio, Cécile Guenot, Francine M. Jodelka, Maria Kibaek, Susanne Kjaergaard, Bruno Leheup, Danielle Martinet, Malgorzata J M Nowaczyk, Jill A. Rosenfeld, Susan Zeesman, Janice Zunich, Jacques S. Beckmann, Joel N. Hirschhorn, Michelle L. Hastings, Sebastien Jacquemont, Nicholas Katsanis

Research output: Contribution to journalArticle

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Abstract

Copy-number variants (CNVs) represent a significant interpretative challenge, given that each CNV typically affects the dosage of multiple genes. Here we report on five individuals with coloboma, microcephaly, developmental delay, short stature, and craniofacial, cardiac, and renal defects who harbor overlapping microdeletions on 8q24.3. Fine mapping localized a commonly deleted 78 kb region that contains three genes: SCRIB, NRBP2, and PUF60. In vivo dissection of the CNV showed discrete contributions of the planar cell polarity effector SCRIB and the splicing factor PUF60 to the syndromic phenotype, and the combinatorial suppression of both genes exacerbated some, but not all, phenotypic components. Consistent with these findings, we identified an individual with microcephaly, short stature, intellectual disability, and heart defects with a de novo c.505C>T variant leading to a p.His169Tyr change in PUF60. Functional testing of this allele in vivo and in vitro showed that the mutation perturbs the relative dosage of two PUF60 isoforms and, subsequently, the splicing efficiency of downstream PUF60 targets. These data inform the functions of two genes not associated previously with human genetic disease and demonstrate how CNVs can exhibit complex genetic architecture, with the phenotype being the amalgam of both discrete dosage dysfunction of single transcripts and also of binary genetic interactions.

Original languageEnglish
Pages (from-to)798-811
Number of pages14
JournalAmerican Journal of Human Genetics
Volume93
Issue number5
DOIs
StatePublished - Nov 7 2013

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Microcephaly
Phenotype
Genes
Coloboma
Cell Polarity
Inborn Genetic Diseases
Gene Dosage
Medical Genetics
Intellectual Disability
Dissection
Protein Isoforms
Alleles
Kidney
Mutation
In Vitro Techniques
RNA Splicing Factors

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Dauber, A., Golzio, C., Guenot, C., Jodelka, F. M., Kibaek, M., Kjaergaard, S., ... Katsanis, N. (2013). Scrib and puf60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-Number variant. American Journal of Human Genetics, 93(5), 798-811. https://doi.org/10.1016/j.ajhg.2013.09.010

Scrib and puf60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-Number variant. / Dauber, Andrew; Golzio, Christelle; Guenot, Cécile; Jodelka, Francine M.; Kibaek, Maria; Kjaergaard, Susanne; Leheup, Bruno; Martinet, Danielle; Nowaczyk, Malgorzata J M; Rosenfeld, Jill A.; Zeesman, Susan; Zunich, Janice; Beckmann, Jacques S.; Hirschhorn, Joel N.; Hastings, Michelle L.; Jacquemont, Sebastien; Katsanis, Nicholas.

In: American Journal of Human Genetics, Vol. 93, No. 5, 07.11.2013, p. 798-811.

Research output: Contribution to journalArticle

Dauber, A, Golzio, C, Guenot, C, Jodelka, FM, Kibaek, M, Kjaergaard, S, Leheup, B, Martinet, D, Nowaczyk, MJM, Rosenfeld, JA, Zeesman, S, Zunich, J, Beckmann, JS, Hirschhorn, JN, Hastings, ML, Jacquemont, S & Katsanis, N 2013, 'Scrib and puf60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-Number variant', American Journal of Human Genetics, vol. 93, no. 5, pp. 798-811. https://doi.org/10.1016/j.ajhg.2013.09.010
Dauber, Andrew ; Golzio, Christelle ; Guenot, Cécile ; Jodelka, Francine M. ; Kibaek, Maria ; Kjaergaard, Susanne ; Leheup, Bruno ; Martinet, Danielle ; Nowaczyk, Malgorzata J M ; Rosenfeld, Jill A. ; Zeesman, Susan ; Zunich, Janice ; Beckmann, Jacques S. ; Hirschhorn, Joel N. ; Hastings, Michelle L. ; Jacquemont, Sebastien ; Katsanis, Nicholas. / Scrib and puf60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-Number variant. In: American Journal of Human Genetics. 2013 ; Vol. 93, No. 5. pp. 798-811.
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