Systematic data-querying of large pediatric biorepository identifies novel Ehlers-Danlos Syndrome variant

Desai, A., Connelly, J. J., March, M., Hou, C., Chiavacci, R. , Kim, C., Lyon, G., Hadley, D., Hakonarson, H. (February 2016) Systematic data-querying of large pediatric biorepository identifies novel Ehlers-Danlos Syndrome variant. BMC Musculoskelet Disord, 17 (1). p. 80.

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DOI: 10.1186/s12891-016-0936-8


BACKGROUND: Ehlers Danlos Syndrome is a rare form of inherited connective tissue disorder, which primarily affects skin, joints, muscle, and blood cells. The current study aimed at finding the mutation that causing EDS type VII C also known as "Dermatosparaxis" in this family. METHODS: Through systematic data querying of the electronic medical records (EMRs) of over 80,000 individuals, we recently identified an EDS family that indicate an autosomal dominant inheritance. The family was consented for genomic analysis of their de-identified data. After a negative screen for known mutations, we performed whole genome sequencing on the male proband, his affected father, and unaffected mother. We filtered the list of non-synonymous variants that are common between the affected individuals. RESULTS: The analysis of non-synonymous variants lead to identifying a novel mutation in the ADAMTSL2 (p. Gly421Ser) gene in the affected individuals. Sanger sequencing confirmed the mutation. CONCLUSION: Our work is significant not only because it sheds new light on the pathophysiology of EDS for the affected family and the field at large, but also because it demonstrates the utility of unbiased large-scale clinical recruitment in deciphering the genetic etiology of rare mendelian diseases. With unbiased large-scale clinical recruitment we strive to sequence as many rare mendelian diseases as possible, and this work in EDS serves as a successful proof of concept to that effect.

Item Type: Paper
Subjects: bioinformatics > genomics and proteomics > analysis and processing
bioinformatics > genomics and proteomics
Investigative techniques and equipment > assays > whole genome sequencing
CSHL Authors:
Communities: CSHL labs > Lyon lab
Depositing User: Stephanie Hovanec
Date: February 2016
Date Deposited: 20 Apr 2016 18:56
Last Modified: 20 Apr 2016 18:56
PMCID: PMC4754938
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