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Gene discovery for Mendelian conditions via social networking: de novo variants in KDM1A cause developmental delay and distinctive facial features.

ABSTRACT: The pace of Mendelian gene discovery is slowed by the "n-of-1 problem"-the difficulty of establishing the causality of a putatively pathogenic variant in a single person or family. Identification of an unrelated person with an overlapping phenotype and suspected pathogenic variant in the same gene can overcome this barrier, but it is often impeded by lack of a convenient or widely available way to share data on candidate variants/genes among families, clinicians, and researchers.Social networking among families, clinicians, and researchers was used to identify three children with variants of unknown significance in KDM1A and similar phenotypes.De novo variants in KDM1A underlie a new syndrome characterized by developmental delay and distinctive facial features.Social networking is a potentially powerful strategy to discover genes for rare Mendelian conditions, particularly those with nonspecific phenotypic features. To facilitate the efforts of families to share phenotypic and genomic information with each other, clinicians, and researchers, we developed the Repository for Mendelian Genomics Family Portal (RMD-FP; http://uwcmg.org/#/family). Design and development of MyGene2 (http://www.mygene2.org), a Web-based tool that enables families, clinicians, and researchers to search for gene matches based on analysis of phenotype and exome data deposited into the RMD-FP, is under way.Genet Med 18 8, 788-795.

SUBMITTER: Chong JX 

PROVIDER: S-EPMC4902791 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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Gene discovery for Mendelian conditions via social networking: de novo variants in KDM1A cause developmental delay and distinctive facial features.

Chong Jessica X JX   Yu Joon-Ho JH   Lorentzen Peter P   Park Karen M KM   Jamal Seema M SM   Tabor Holly K HK   Rauch Anita A   Saenz Margarita Sifuentes MS   Boltshauser Eugen E   Patterson Karynne E KE   Nickerson Deborah A DA   Bamshad Michael J MJ  

Genetics in medicine : official journal of the American College of Medical Genetics 20151210 8

<h4>Purpose</h4>The pace of Mendelian gene discovery is slowed by the "n-of-1 problem"-the difficulty of establishing the causality of a putatively pathogenic variant in a single person or family. Identification of an unrelated person with an overlapping phenotype and suspected pathogenic variant in the same gene can overcome this barrier, but it is often impeded by lack of a convenient or widely available way to share data on candidate variants/genes among families, clinicians, and researchers.  ...[more]

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