PUBLICATION
A recurrent missense variant in EYA3 gene is associated with oculo-auriculo-vertebral spectrum
- Authors
- Tingaud-Sequeira, A., Trimouille, A., Salaria, M., Stapleton, R., Claverol, S., Plaisant, C., Bonneu, M., Lopez, E., Arveiler, B., Lacombe, D., Rooryck, C.
- ID
- ZDB-PUB-210123-10
- Date
- 2021
- Source
- Human genetics 140(6): 933-944 (Journal)
- Registered Authors
- Keywords
- none
- MeSH Terms
-
- Animals
- Amino Acid Sequence
- Humans
- Sequence Homology, Amino Acid
- Pedigree
- Child, Preschool
- Goldenhar Syndrome/genetics*
- Goldenhar Syndrome/metabolism
- Goldenhar Syndrome/pathology
- Exome Sequencing
- DNA-Binding Proteins/deficiency
- DNA-Binding Proteins/genetics*
- Child
- DNA Repair*
- Embryo, Nonmammalian
- Male
- NF-E2-Related Factor 2/genetics
- NF-E2-Related Factor 2/metabolism
- Penetrance
- Siblings
- Mutation, Missense*
- Gene Expression Regulation
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Protein Tyrosine Phosphatases/deficiency
- Protein Tyrosine Phosphatases/genetics*
- Female
- Proto-Oncogene Proteins c-myc/genetics
- Proto-Oncogene Proteins c-myc/metabolism
- Sequence Alignment
- Zebrafish/embryology
- Zebrafish/genetics
- Zebrafish/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Histones/genetics
- Histones/metabolism
- PubMed
- 33475861 Full text @ Hum. Genet.
Citation
Tingaud-Sequeira, A., Trimouille, A., Salaria, M., Stapleton, R., Claverol, S., Plaisant, C., Bonneu, M., Lopez, E., Arveiler, B., Lacombe, D., Rooryck, C. (2021) A recurrent missense variant in EYA3 gene is associated with oculo-auriculo-vertebral spectrum. Human genetics. 140(6):933-944.
Abstract
Goldenhar syndrome or oculo-auriculo-vertebral spectrum (OAVS) is a complex developmental disorder characterized by asymmetric ear anomalies, hemifacial microsomia, ocular and vertebral defects. We aimed at identifying and characterizing a new gene associated with OAVS. Two affected brothers with OAVS were analyzed by exome sequencing that revealed a missense variant (p.(Asn358Ser)) in the EYA3 gene. EYA3 screening was then performed in 122 OAVS patients that identified the same variant in one individual from an unrelated family. Segregation assessment in both families showed incomplete penetrance and variable expressivity. We investigated this variant in cellular models to determine its pathogenicity and demonstrated an increased half-life of the mutated protein without impact on its ability to dephosphorylate H2AFX following DNA repair pathway induction. Proteomics performed on this cellular model revealed four significantly predicted upstream regulators which are PPARGC1B, YAP1, NFE2L2 and MYC. Moreover, eya3 knocked-down zebrafish embryos developed specific craniofacial abnormalities corroborating previous animal models and supporting its involvement in the OAVS. Additionally, EYA3 gene expression was deregulated in vitro by retinoic acid exposure. EYA3 is the second recurrent gene identified to be associated with OAVS. Moreover, based on protein interactions and related diseases, we suggest the DNA repair as a key molecular pathway involved in craniofacial development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping