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Homozygous Mutation in GPT2 Associated with Nonsyndromic Intellectual Disability in a Consanguineous Family from Costa Rica
dc.creator | Lobo Prada, Tanya | |
dc.creator | Sticht, Heinrich | |
dc.creator | Bogantes Ledezma, Sixto | |
dc.creator | Ekici, Arif | |
dc.creator | Uebe, Steffen | |
dc.creator | Reis, André | |
dc.creator | Leal Esquivel, Alejandro | |
dc.date.accessioned | 2020-06-24T15:24:58Z | |
dc.date.available | 2020-06-24T15:24:58Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | https://link.springer.com/chapter/10.1007/8904_2016_40 | |
dc.identifier.isbn | 978-3-662-56138-6 | |
dc.identifier.uri | https://hdl.handle.net/10669/81195 | |
dc.description.abstract | Intellectual disability is a highly heterogeneous disease that affects the central nervous system and impairs patients’ ability to function independently. Despite multiples genes involved in the etiology of disease, most of the genetic background is yet to be discovered. We used runs of homozygosity and exome sequencing to study a large Costa Rican family with four individuals affected with severe intellectual disability and found a novel homozygous missense mutation, p. 96G>R, c. 286G>A, in all affected individuals. This gene encodes for a pyridoxal enzyme involved in the production of the neurotransmitter glutamate and is highly expressed in the white matter of brain and cerebellum. Protein modeling of GPT2 predicted that the mutation is located in a loop where the substrate binds to the active site of the enzyme, therefore, suggesting that the catalytic activity is impaired. With our report of a second mutation we fortify the importance of GPT2 as a novel cause of autosomal recessive nonsyndromic intellectual disability and support the premise that GPT2 is highly important for the neurodevelopment of the central nervous system. Synopsis: The mutation p. 96G>R c. 286G>A in GPT2, located in a loop where the substrate binds to the active site of the enzyme, fortifies the importance of GPT2 in the pathogenesis of nonsyndromic intellectual disability | es_ES |
dc.description.sponsorship | German Research Foundation (DFG) grant AB393/2-2 | es_ES |
dc.description.sponsorship | German Academic Exchange Program (DAAD) | es_ES |
dc.description.sponsorship | Graduate Studies System of University of Costa Rica | es_ES |
dc.language.iso | en_US | es_ES |
dc.source | JMD Reports, vol.36, pp.59-66 | es_ES |
dc.subject | Homozygous mutation | es_ES |
dc.subject | GPT2 | es_ES |
dc.subject | Nonsyndromic | es_ES |
dc.subject | Intellectual disability | es_ES |
dc.title | Homozygous Mutation in GPT2 Associated with Nonsyndromic Intellectual Disability in a Consanguineous Family from Costa Rica | es_ES |
dc.type | capítulo de libro | |
dc.identifier.doi | 10.1007/8904_2016_40 | |
dc.description.procedence | UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Centro de Investigación en Neurociencias (CIN) | es_ES |
dc.identifier.codproyecto | 111-B1-349 |