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Shukla, A. and Das Bhowmik, A. and Hebbar, Malavika and Rajagopal, K.V. and Girisha, K.M. and Gupta, N. and Dalal, Ashwin (2018) Homozygosity for a nonsense variant in AIMP2 is associated with a progressive neurodevelopmental disorder with microcephaly, seizures, and spastic quadriparesis. Journal of Human Genetics, 63 (1). pp. 19-25. ISSN 1434-5161

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We ascertained two unrelated consanguineous families with two affected children each having microcephaly, refractory seizures, intellectual disability, and spastic quadriparesis. Magnetic resonance imaging showed atrophy of cerebrum, cerebellum and spinal cord, prominent cisterna magna, symmetric T2 hypo-intensities in the bilateral basal ganglia and thinning of corpus callosum. Whole-exome sequencing of three affected individuals revealed c.105C>A [p.(Tyr35Ter)] variant in AIMP2. The variant lies in a common homozygous region of 940 kb on chromosome 7 and is likely to have been inherited from a common ancestor. The phenotype noted in our subjects' shares marked similarity with that of hypomyelinating leukodystrophy-3 caused by mutations in closely related gene AIMP1. We hereby report the first human disease associated with deleterious mutations in AIMP2.

Item Type: Article
Depositing User: Dr P Divakar
Date Deposited: 15 Dec 2017 10:19
Last Modified: 27 Dec 2018 19:18
URI: http://cdfd.sciencecentral.in/id/eprint/818

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