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dc.contributor.authorAnsar, M.
dc.contributor.authorRiazuddin, S.
dc.contributor.authorSarwar, M.T.
dc.date.accessioned2019-06-21T18:46:32Z
dc.date.available2019-06-21T18:46:32Z
dc.date.issued2018
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85049920012&doi=10.1038%2fgim.2017.113&partnerID=40&md5=551f5d78de5e0ce09f1f93c2cee138ed
dc.identifier.urihttp://hdl.handle.net/10713/9757
dc.description.abstractPurpose: To elucidate the novel molecular cause in two unrelated consanguineous families with autosomal recessive intellectual disability. Methods: A combination of homozygosity mapping and exome sequencing was used to locate the plausible genetic defect in family F162, while only exome sequencing was followed in the family PKMR65. The protein 3D structure was visualized with the University of California-San Francisco Chimera software. Results: All five patients from both families presented with severe intellectual disability, aggressive behavior, and speech and motor delay. Four of the five patients had microcephaly. We identified homozygous missense variants in LINGO1, p.(Arg290His) in family F162 and p.(Tyr288Cys) in family PKMR65. Both variants were predicted to be pathogenic, and segregated with the phenotype in the respective families. Molecular modeling of LINGO1 suggests that both variants interfere with the glycosylation of the protein. Conclusion: LINGO1 is a transmembrane receptor, predominantly found in the central nervous system. Published loss-of-function studies in mouse and zebrafish have established a crucial role of LINGO1 in normal neuronal development and central nervous system myelination by negatively regulating oligodendrocyte differentiation and neuronal survival. Taken together, our results indicate that biallelic LINGO1 missense variants cause autosomal recessive intellectual disability in humans. Copyright 2017 The Author(s).en_US
dc.description.urihttps://dx.doi.org/10.1038/gim.2017.113en_US
dc.language.isoen-USen_US
dc.publisherNature Publishing Groupen_US
dc.relation.ispartofGenetics in Medicine
dc.subjectconsanguineous familiesen_US
dc.subjectdevelopmental delayen_US
dc.subjectintellectual disabilityen_US
dc.subjectLINGO1en_US
dc.titleBiallelic variants in LINGO1 are associated with autosomal recessive intellectual disability, microcephaly, speech and motor delayen_US
dc.typeArticleen_US
dc.identifier.doi10.1038/gim.2017.113
dc.identifier.pmid28837161


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