Biallelic variants in LINGO1 are associated with autosomal recessive intellectual disability, microcephaly, speech and motor delay
Date
2018Journal
Genetics in MedicinePublisher
Nature Publishing GroupType
Article
Metadata
Show full item recordAbstract
Purpose: 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).Identifier to cite or link to this item
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85049920012&doi=10.1038%2fgim.2017.113&partnerID=40&md5=551f5d78de5e0ce09f1f93c2cee138ed; http://hdl.handle.net/10713/9757ae974a485f413a2113503eed53cd6c53
10.1038/gim.2017.113
Scopus Count
Collections
Related articles
- Bi-allelic Variants in DYNC1I2 Cause Syndromic Microcephaly with Intellectual Disability, Cerebral Malformations, and Dysmorphic Facial Features.
- Authors: Ansar M, Ullah F, Paracha SA, Adams DJ, Lai A, Pais L, Iwaszkiewicz J, Millan F, Sarwar MT, Agha Z, Shah SF, Qaisar AA, Falconnet E, Zoete V, Ranza E, Makrythanasis P, Santoni FA, Ahmed J, Katsanis N, Walsh C, Davis EE, Antonarakis SE
- Issue date: 2019 Jun 6
- Missense variants in AIMP1 gene are implicated in autosomal recessive intellectual disability without neurodegeneration.
- Authors: Iqbal Z, Püttmann L, Musante L, Razzaq A, Zahoor MY, Hu H, Wienker TF, Garshasbi M, Fattahi Z, Gilissen C, Vissers LE, de Brouwer AP, Veltman JA, Pfundt R, Najmabadi H, Ropers HH, Riazuddin S, Kahrizi K, van Bokhoven H
- Issue date: 2016 Mar
- De novo and biallelic DEAF1 variants cause a phenotypic spectrum.
- Authors: Nabais Sá MJ, Jensik PJ, McGee SR, Parker MJ, Lahiri N, McNeil EP, Kroes HY, Hagerman RJ, Harrison RE, Montgomery T, Splitt M, Palmer EE, Sachdev RK, Mefford HC, Scott AA, Martinez-Agosto JA, Lorenz R, Orenstein N, Berg JN, Amiel J, Heron D, Keren B, Cobben JM, Menke LA, Marco EJ, Graham JM Jr, Pierson TM, Karimiani EG, Maroofian R, Manzini MC, Cauley ES, Colombo R, Odent S, Dubourg C, Phornphutkul C, de Brouwer APM, de Vries BBA, Vulto-vanSilfhout AT
- Issue date: 2019 Sep
- Biallelic variants in FBXL3 cause intellectual disability, delayed motor development and short stature.
- Authors: Ansar M, Paracha SA, Serretti A, Sarwar MT, Khan J, Ranza E, Falconnet E, Iwaszkiewicz J, Shah SF, Qaisar AA, Santoni FA, Zoete V, Megarbane A, Ahmed J, Colombo R, Makrythanasis P, Antonarakis SE
- Issue date: 2019 Mar 15
- Mapping autosomal recessive intellectual disability: combined microarray and exome sequencing identifies 26 novel candidate genes in 192 consanguineous families.
- Authors: Harripaul R, Vasli N, Mikhailov A, Rafiq MA, Mittal K, Windpassinger C, Sheikh TI, Noor A, Mahmood H, Downey S, Johnson M, Vleuten K, Bell L, Ilyas M, Khan FS, Khan V, Moradi M, Ayaz M, Naeem F, Heidari A, Ahmed I, Ghadami S, Agha Z, Zeinali S, Qamar R, Mozhdehipanah H, John P, Mir A, Ansar M, French L, Ayub M, Vincent JB
- Issue date: 2018 Apr