Skip to main content
Log in

A de novo YY1 missense variant expanding the Gabriele-de Vries syndrome phenotype and affecting X-chromosome inactivation

  • Original Article
  • Published:
Metabolic Brain Disease Aims and scope Submit manuscript

Abstract

Yin and Yang 1 gene (YY1; MIM#600,013) is recognized as a dual transcriptional activating and repressing factor, RNA-binding protein, and 3D chromatin regulator, with multi roles in neurodevelopmental and maintenance pathways. YY1 haploinsufficiency caused either by heterozygous sequence variants or deletions involving the whole gene has been recently associated with Gabriele-de Vries syndrome (GADEVS), a rare congenital autosomal dominant condition, leading to intellectual disability (ID) and multiple physical/behavioural abnormalities. Herein, we describe clinical and molecular findings from a Brazilian female harbouring a de novo missense pathogenic variant in YY1 gene (NM_003403.5:c.1106A > G; p.Asn369Ser) found by whole exome sequencing with potential implications for protein structure and function. Undescribed or uncommon clinical features in this patient included non-febrile seizures, severe scoliosis, hearing impairment, and chorioretinitis. Further bioinformatics analyses using YY1-other protein interaction networks reinforced the involvement of YY1 interactors in such phenotypes, in exception of chorioretinitis. Moreover, X-chromosome inactivation (XCI) skewing was evidenced in the patient and attributed to the haploinsufficiency of YY1, which direct and indirectly interacts with numerous XCI key regulators. Besides expanding the mutational and phenotype spectrum of GADEVS, our results highlight the role of YY1 as an essential autosomal regulator of XCI epigenetic process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

Data availability

The variant described in this study is available at ClinVar repository (accession number SCV002505686).

References

Web Resources

    The URLs for data presented herein are as follows:

    Download references

    Acknowledgements

    The authors thank the family members for their kind cooperation. This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/Brazil; 302263/2019-5), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ/Brazil; E-26/010.001888/2019), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/BRAZIL; Finance Code 001) and Centro de Produção da Universidade do Estado do Rio de Janeiro (CEPUERJ).

    Funding

    This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq/Brazil; 302263/2019–5), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ/Brazil; E-26/010.001888/2019), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/BRAZIL; Finance Code 001), Departamento de Inovação (InovUerj/UERJ/Brazil), and Centro de Produção da Universidade do Estado do Rio de Janeiro (CEPUERJ/Brazil).

    Author information

    Authors and Affiliations

    Authors

    Contributions

    Cíntia Barros Santos-Rebouças contributed to the study conception and design. Data collection were performed by Cíntia Barros Santos-Rebouças, Suely Rodrigues dos Santos, Rafael Mina Piergiorge, Jady Rocha, Bianca Barbosa Abdala, Andressa Pereira Gonçalves, and Márcia Mattos Gonçalves Pimentel. Clinical evaluation was done by Suely Rodrigues dos Santos. Analysis and interpretation of data were performed by Cíntia Barros Santos-Rebouças, Suely Rodrigues dos Santos, and Rafael Mina Piergiorge. The first draft of the manuscript was written by Cíntia Barros Santos-Rebouças, Suely Rodrigues dos Santos, and Rafael Mina Piergiorge. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript. Funding was obtained by Cíntia Barros Santos-Rebouças.

    Corresponding author

    Correspondence to Cíntia Barros Santos-Rebouças.

    Ethics declarations

    Ethics approval

    This study was performed in line with the principles of The Institutional Ethics Committee from the State University of Rio de Janeiro (CAAE 46769315.5.0000.5259).

    Brazil does not take part from the Declaration of Helsinki.

    Consent to participate

    Informed consent was obtained from all individual participants included in the study.

    Consent to publish

    The authors affirm that human research participants provided informed consent for publication of the images in Fig. 1.

    Competing interests

    The authors have no relevant financial or non-financial interests to disclose.

    Additional information

    Publisher's note

    Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

    Suely Rodrigues dos Santos and Rafael Mina Piergiorge contributed equally to this work.

    Supplementary Information

    Below is the link to the electronic supplementary material.

    Supplementary file1 (PDF 2686 kb)

    Rights and permissions

    Reprints and permissions

    About this article

    Check for updates. Verify currency and authenticity via CrossMark

    Cite this article

    dos Santos, S.R., Piergiorge, R.M., Rocha, J. et al. A de novo YY1 missense variant expanding the Gabriele-de Vries syndrome phenotype and affecting X-chromosome inactivation. Metab Brain Dis 37, 2431–2440 (2022). https://doi.org/10.1007/s11011-022-01024-2

    Download citation

    • Received:

    • Accepted:

    • Published:

    • Issue Date:

    • DOI: https://doi.org/10.1007/s11011-022-01024-2

    Keywords

    Navigation