Startseite Medizin A novel variant in the FLNB gene associated with spondylocarpotarsal synostosis syndrome
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A novel variant in the FLNB gene associated with spondylocarpotarsal synostosis syndrome

  • Hina Qasim , Hayat Khan , Humaira Zeb , Akmal Ahmad , Muhammad Ilyas , Muhammad Zahoor EMAIL logo , Muhammad Naveed Umar , Riaz Ullah und Essam A. Ali
Veröffentlicht/Copyright: 16. Mai 2024

Abstract

Objectives

Genetic disorders involved in skeleton system arise due to the disturbance in skeletal development, growth and homeostasis. Filamin B is an actin binding protein which is large dimeric protein which cross link actin cytoskeleton filaments into dynamic structure. A single nucleotide changes in the FLNB gene causes spondylocarpotarsal synostosis syndrome, a rare bone disorder due to which the fusion of carpels and tarsals synostosis occurred along with fused vertebrae. In the current study we investigated a family residing in north-western areas of Pakistan.

Methods

The whole exome sequencing of proband was performed followed by Sanger sequencing of all family members of the subject to validate the variant segregation within the family. Bioinformatics tools were utilized to assess the pathogenicity of the variant.

Results

Whole Exome Sequencing revealed a novel variant (NM_001457: c.209C>T and p.Pro70Leu) in the FLNB gene which was homozygous missense mutation in the FLNB gene. The variant was further validated and visualized by Sanger sequencing and protein structure studies respectively as mentioned before.

Conclusions

The findings have highlighted the importance of the molecular diagnosis in SCT (spondylocarpotarsal synostosis syndrome) for genetic risk counselling in consanguineous families.


Corresponding author: Muhammad Zahoor, Department of Biochemistry, University of Malakand, Chakdara, Dir Lower, KPK, 18800, Pakistan, E-mail:

Acknowledgments

The authors extend their appreciation to the researchers supporting Project number (RSP2024R33) King Saud University, Riyadh, Saudi Arabia, for financial support.

  1. Ethical approval: The local Institutional Review Board deemed the study exempt from review.

  2. Informed consent: Informed consent was obtained from all individuals included in this study.

  3. Author contributions: Hina Qasim, Hayat Khan, Humaira Zeb, Akmal Ahmad, Muhammad Ilyas, Muhammad Zahoor, Muhammad Naveed Umar, Riaz Ullah, and Essam A. Ali are all equal contributors. All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Competing interests: Authors state no conflict of interest.

  5. Research funding: Researchers supporting Project number (RSP2024R33) King Saud University, Riyadh, Saudi Arabia, for financial support.

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Received: 2024-03-02
Accepted: 2024-04-30
Published Online: 2024-05-16

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Heruntergeladen am 6.2.2026 von https://www.degruyterbrill.com/document/doi/10.1515/jbcpp-2024-0031/html
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